/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-98.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 02:56:21,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 02:56:21,523 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 02:56:21,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 02:56:21,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 02:56:21,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 02:56:21,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 02:56:21,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 02:56:21,543 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 02:56:21,544 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 02:56:21,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 02:56:21,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 02:56:21,547 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 02:56:21,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 02:56:21,550 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 02:56:21,551 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 02:56:21,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 02:56:21,552 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 02:56:21,552 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 02:56:21,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 02:56:21,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 02:56:21,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 02:56:21,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 02:56:21,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 02:56:21,553 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 02:56:21,553 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 02:56:21,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 02:56:21,553 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 02:56:21,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 02:56:21,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 02:56:21,555 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 02:56:21,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 02:56:21,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:56:21,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 02:56:21,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 02:56:21,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 02:56:21,556 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 02:56:21,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 02:56:21,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 02:56:21,557 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 02:56:21,557 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 02:56:21,557 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 02:56:21,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 02:56:21,557 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 02:56:21,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 02:56:21,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 02:56:21,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 02:56:21,770 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 02:56:21,771 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 02:56:21,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-98.i [2023-12-16 02:56:22,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 02:56:23,297 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 02:56:23,297 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-98.i [2023-12-16 02:56:23,315 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53e84a641/323fbc4c739b4e5d93f4724618344ab8/FLAGb8cf9006c [2023-12-16 02:56:23,334 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53e84a641/323fbc4c739b4e5d93f4724618344ab8 [2023-12-16 02:56:23,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 02:56:23,345 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 02:56:23,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 02:56:23,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 02:56:23,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 02:56:23,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d969b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23, skipping insertion in model container [2023-12-16 02:56:23,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,418 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 02:56:23,612 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-98.i[915,928] [2023-12-16 02:56:23,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:56:23,687 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 02:56:23,695 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-98.i[915,928] [2023-12-16 02:56:23,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:56:23,754 INFO L206 MainTranslator]: Completed translation [2023-12-16 02:56:23,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23 WrapperNode [2023-12-16 02:56:23,755 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 02:56:23,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 02:56:23,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 02:56:23,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 02:56:23,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,799 INFO L138 Inliner]: procedures = 26, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 223 [2023-12-16 02:56:23,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 02:56:23,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 02:56:23,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 02:56:23,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 02:56:23,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,819 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,871 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 02:56:23,872 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 02:56:23,915 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 02:56:23,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 02:56:23,915 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 02:56:23,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23" (1/1) ... [2023-12-16 02:56:23,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:56:23,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:56:23,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 02:56:24,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 02:56:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 02:56:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 02:56:24,039 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 02:56:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 02:56:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 02:56:24,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 02:56:24,111 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 02:56:24,113 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 02:56:24,436 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 02:56:24,482 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 02:56:24,483 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 02:56:24,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:56:24 BoogieIcfgContainer [2023-12-16 02:56:24,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 02:56:24,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 02:56:24,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 02:56:24,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 02:56:24,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:56:23" (1/3) ... [2023-12-16 02:56:24,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43539a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:56:24, skipping insertion in model container [2023-12-16 02:56:24,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:56:23" (2/3) ... [2023-12-16 02:56:24,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43539a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:56:24, skipping insertion in model container [2023-12-16 02:56:24,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:56:24" (3/3) ... [2023-12-16 02:56:24,491 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-98.i [2023-12-16 02:56:24,505 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 02:56:24,506 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 02:56:24,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 02:56:24,561 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;@2679eda4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 02:56:24,561 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 02:56:24,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 50 states have internal predecessors, (68), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 02:56:24,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 02:56:24,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:56:24,596 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:56:24,596 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:56:24,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:56:24,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1366530371, now seen corresponding path program 1 times [2023-12-16 02:56:24,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:56:24,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908134356] [2023-12-16 02:56:24,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:56:24,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:56:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:56:24,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:56:24,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908134356] [2023-12-16 02:56:24,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 02:56:24,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851428299] [2023-12-16 02:56:24,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:56:24,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:56:24,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:56:24,941 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 02:56:24,972 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 02:56:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:56:25,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 02:56:25,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:56:25,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked. [2023-12-16 02:56:25,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:56:25,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851428299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:56:25,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:56:25,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:56:25,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086940823] [2023-12-16 02:56:25,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:56:25,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 02:56:25,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:56:25,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 02:56:25,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:56:25,246 INFO L87 Difference]: Start difference. First operand has 92 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 50 states have internal predecessors, (68), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) 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, (40), 2 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-16 02:56:25,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:56:25,291 INFO L93 Difference]: Finished difference Result 181 states and 334 transitions. [2023-12-16 02:56:25,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 02:56:25,294 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, (40), 2 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 2 states have call successors, (40) Word has length 239 [2023-12-16 02:56:25,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:56:25,305 INFO L225 Difference]: With dead ends: 181 [2023-12-16 02:56:25,305 INFO L226 Difference]: Without dead ends: 90 [2023-12-16 02:56:25,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:56:25,315 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:56:25,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:56:25,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-16 02:56:25,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-12-16 02:56:25,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 48 states have (on average 1.3125) internal successors, (63), 48 states have internal predecessors, (63), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 02:56:25,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 143 transitions. [2023-12-16 02:56:25,377 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 143 transitions. Word has length 239 [2023-12-16 02:56:25,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:56:25,377 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 143 transitions. [2023-12-16 02:56:25,378 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, (40), 2 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-16 02:56:25,378 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 143 transitions. [2023-12-16 02:56:25,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 02:56:25,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:56:25,388 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:56:25,395 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 02:56:25,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 02:56:25,596 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:56:25,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:56:25,597 INFO L85 PathProgramCache]: Analyzing trace with hash -892978175, now seen corresponding path program 1 times [2023-12-16 02:56:25,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:56:25,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526337843] [2023-12-16 02:56:25,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:56:25,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:56:25,642 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:56:25,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766278137] [2023-12-16 02:56:25,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:56:25,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:56:25,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:56:25,654 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 02:56:25,655 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 02:56:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:56:25,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 02:56:25,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:56:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-16 02:56:26,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:56:26,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:56:26,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526337843] [2023-12-16 02:56:26,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:56:26,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766278137] [2023-12-16 02:56:26,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766278137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:56:26,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:56:26,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:56:26,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993654089] [2023-12-16 02:56:26,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:56:26,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:56:26,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:56:26,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:56:26,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:56:26,096 INFO L87 Difference]: Start difference. First operand 90 states and 143 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 02:56:26,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:56:26,194 INFO L93 Difference]: Finished difference Result 268 states and 427 transitions. [2023-12-16 02:56:26,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:56:26,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 239 [2023-12-16 02:56:26,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:56:26,197 INFO L225 Difference]: With dead ends: 268 [2023-12-16 02:56:26,198 INFO L226 Difference]: Without dead ends: 179 [2023-12-16 02:56:26,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 02:56:26,199 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 46 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:56:26,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 396 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:56:26,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-12-16 02:56:26,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2023-12-16 02:56:26,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 94 states have (on average 1.3085106382978724) internal successors, (123), 94 states have internal predecessors, (123), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-16 02:56:26,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 283 transitions. [2023-12-16 02:56:26,229 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 283 transitions. Word has length 239 [2023-12-16 02:56:26,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:56:26,230 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 283 transitions. [2023-12-16 02:56:26,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 02:56:26,231 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 283 transitions. [2023-12-16 02:56:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 02:56:26,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:56:26,233 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:56:26,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 02:56:26,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-16 02:56:26,441 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:56:26,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:56:26,441 INFO L85 PathProgramCache]: Analyzing trace with hash -212919805, now seen corresponding path program 1 times [2023-12-16 02:56:26,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:56:26,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368735504] [2023-12-16 02:56:26,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:56:26,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:56:26,502 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:56:26,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292032340] [2023-12-16 02:56:26,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:56:26,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:56:26,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:56:26,537 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 02:56:26,564 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 02:56:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:56:26,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 02:56:26,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:56:27,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-16 02:56:27,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:56:27,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:56:27,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368735504] [2023-12-16 02:56:27,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:56:27,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292032340] [2023-12-16 02:56:27,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292032340] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:56:27,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:56:27,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 02:56:27,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769858034] [2023-12-16 02:56:27,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:56:27,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 02:56:27,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:56:27,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 02:56:27,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 02:56:27,100 INFO L87 Difference]: Start difference. First operand 177 states and 283 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 02:56:27,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:56:27,693 INFO L93 Difference]: Finished difference Result 537 states and 856 transitions. [2023-12-16 02:56:27,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 02:56:27,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 239 [2023-12-16 02:56:27,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:56:27,697 INFO L225 Difference]: With dead ends: 537 [2023-12-16 02:56:27,698 INFO L226 Difference]: Without dead ends: 361 [2023-12-16 02:56:27,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 02:56:27,699 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 294 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 02:56:27,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 883 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 02:56:27,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-12-16 02:56:27,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 347. [2023-12-16 02:56:27,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 182 states have (on average 1.2912087912087913) internal successors, (235), 182 states have internal predecessors, (235), 160 states have call successors, (160), 4 states have call predecessors, (160), 4 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2023-12-16 02:56:27,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 555 transitions. [2023-12-16 02:56:27,737 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 555 transitions. Word has length 239 [2023-12-16 02:56:27,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:56:27,738 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 555 transitions. [2023-12-16 02:56:27,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-16 02:56:27,738 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 555 transitions. [2023-12-16 02:56:27,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 02:56:27,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:56:27,740 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:56:27,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-16 02:56:27,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:56:27,946 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:56:27,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:56:27,947 INFO L85 PathProgramCache]: Analyzing trace with hash -212860223, now seen corresponding path program 1 times [2023-12-16 02:56:27,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:56:27,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449014339] [2023-12-16 02:56:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:56:27,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:56:27,971 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:56:27,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2101523417] [2023-12-16 02:56:27,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:56:27,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:56:27,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:56:27,990 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 02:56:28,020 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 02:56:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:56:28,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-16 02:56:28,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 02:57:25,205 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 02:57:25,206 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 02:57:26,280 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 02:57:26,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown