/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 12:22:48,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 12:22:48,855 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-07 12:22:48,861 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 12:22:48,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 12:22:48,862 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 12:22:48,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 12:22:48,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 12:22:48,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 12:22:48,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 12:22:48,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 12:22:48,887 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 12:22:48,887 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 12:22:48,888 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 12:22:48,888 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 12:22:48,888 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 12:22:48,889 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 12:22:48,889 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 12:22:48,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 12:22:48,889 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 12:22:48,889 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 12:22:48,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 12:22:48,893 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 12:22:48,893 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 12:22:48,893 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 12:22:48,893 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 12:22:48,894 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 12:22:48,894 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 12:22:48,894 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 12:22:48,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 12:22:48,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 12:22:48,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 12:22:48,895 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 12:22:48,895 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 12:22:48,895 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 12:22:48,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 12:22:48,896 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 12:22:48,896 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 12:22:48,896 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 12:22:48,897 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-07 12:22:48,897 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL [2023-09-07 12:22:49,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 12:22:49,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 12:22:49,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 12:22:49,104 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 12:22:49,108 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 12:22:49,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i [2023-09-07 12:22:49,960 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 12:22:50,196 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 12:22:50,197 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i [2023-09-07 12:22:50,209 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33272a844/9dc09a68855146e0ad5fb4f6516b1ddc/FLAG86402eab9 [2023-09-07 12:22:50,218 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33272a844/9dc09a68855146e0ad5fb4f6516b1ddc [2023-09-07 12:22:50,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 12:22:50,221 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 12:22:50,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 12:22:50,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 12:22:50,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 12:22:50,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 12:22:50" (1/1) ... [2023-09-07 12:22:50,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36679237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50, skipping insertion in model container [2023-09-07 12:22:50,226 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 12:22:50" (1/1) ... [2023-09-07 12:22:50,267 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 12:22:50,399 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2023-09-07 12:22:50,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 12:22:50,591 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 12:22:50,599 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2023-09-07 12:22:50,610 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-09-07 12:22:50,611 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-09-07 12:22:50,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 12:22:50,659 WARN L669 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 12:22:50,664 INFO L206 MainTranslator]: Completed translation [2023-09-07 12:22:50,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50 WrapperNode [2023-09-07 12:22:50,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 12:22:50,667 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 12:22:50,667 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 12:22:50,667 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 12:22:50,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50" (1/1) ... [2023-09-07 12:22:50,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50" (1/1) ... [2023-09-07 12:22:50,708 INFO L138 Inliner]: procedures = 271, calls = 45, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2023-09-07 12:22:50,708 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 12:22:50,709 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 12:22:50,709 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 12:22:50,709 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 12:22:50,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50" (1/1) ... [2023-09-07 12:22:50,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50" (1/1) ... [2023-09-07 12:22:50,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50" (1/1) ... [2023-09-07 12:22:50,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50" (1/1) ... [2023-09-07 12:22:50,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50" (1/1) ... [2023-09-07 12:22:50,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50" (1/1) ... [2023-09-07 12:22:50,730 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50" (1/1) ... [2023-09-07 12:22:50,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50" (1/1) ... [2023-09-07 12:22:50,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 12:22:50,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 12:22:50,735 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 12:22:50,736 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 12:22:50,740 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50" (1/1) ... [2023-09-07 12:22:50,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 12:22:50,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 12:22:50,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-07 12:22:50,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-07 12:22:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-09-07 12:22:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 12:22:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2023-09-07 12:22:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2023-09-07 12:22:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 12:22:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 12:22:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-07 12:22:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 12:22:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2023-09-07 12:22:50,822 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2023-09-07 12:22:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure process [2023-09-07 12:22:50,822 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2023-09-07 12:22:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 12:22:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 12:22:50,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 12:22:50,823 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 12:22:51,076 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 12:22:51,078 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 12:22:51,294 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 12:22:51,300 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 12:22:51,300 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-09-07 12:22:51,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 12:22:51 BoogieIcfgContainer [2023-09-07 12:22:51,302 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 12:22:51,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 12:22:51,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 12:22:51,305 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 12:22:51,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 12:22:50" (1/3) ... [2023-09-07 12:22:51,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4586406f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 12:22:51, skipping insertion in model container [2023-09-07 12:22:51,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:22:50" (2/3) ... [2023-09-07 12:22:51,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4586406f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 12:22:51, skipping insertion in model container [2023-09-07 12:22:51,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 12:22:51" (3/3) ... [2023-09-07 12:22:51,307 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2023-09-07 12:22:51,312 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 12:22:51,319 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 12:22:51,319 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-09-07 12:22:51,319 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 12:22:51,364 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-07 12:22:51,404 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 12:22:51,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 12:22:51,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 12:22:51,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 12:22:51,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-07 12:22:51,437 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 12:22:51,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 12:22:51,448 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7cf425a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 12:22:51,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 12:22:51,647 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 12:22:51,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 12:22:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1206241253, now seen corresponding path program 1 times [2023-09-07 12:22:51,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 12:22:51,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628762901] [2023-09-07 12:22:51,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:22:51,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 12:22:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:22:52,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 12:22:52,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 12:22:52,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628762901] [2023-09-07 12:22:52,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628762901] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 12:22:52,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 12:22:52,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-07 12:22:52,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759192223] [2023-09-07 12:22:52,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 12:22:52,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-07 12:22:52,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 12:22:52,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-07 12:22:52,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-09-07 12:22:52,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:22:52,526 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 12:22:52,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 12:22:52,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:22:53,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-07 12:22:53,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 12:22:53,363 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 12:22:53,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 12:22:53,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1369225329, now seen corresponding path program 1 times [2023-09-07 12:22:53,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 12:22:53,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307591904] [2023-09-07 12:22:53,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:22:53,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 12:22:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:22:53,534 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 12:22:53,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 12:22:53,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307591904] [2023-09-07 12:22:53,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307591904] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 12:22:53,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 12:22:53,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-07 12:22:53,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408734279] [2023-09-07 12:22:53,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 12:22:53,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-07 12:22:53,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 12:22:53,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-07 12:22:53,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-07 12:22:53,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:22:53,541 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 12:22:53,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 12:22:53,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-07 12:22:53,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:22:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-07 12:22:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:22:54,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-07 12:22:54,535 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 12:22:54,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 12:22:54,536 INFO L85 PathProgramCache]: Analyzing trace with hash -69709464, now seen corresponding path program 1 times [2023-09-07 12:22:54,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 12:22:54,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539638383] [2023-09-07 12:22:54,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:22:54,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 12:22:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:22:54,812 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-07 12:22:54,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 12:22:54,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539638383] [2023-09-07 12:22:54,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539638383] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 12:22:54,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320601808] [2023-09-07 12:22:54,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:22:54,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 12:22:54,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 12:22:54,816 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) [2023-09-07 12:22:54,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-07 12:22:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:22:54,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 9 conjunts are in the unsatisfiable core [2023-09-07 12:22:54,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 12:22:55,109 INFO L351 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 11 treesize of output 7 [2023-09-07 12:22:55,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 12:22:55,132 INFO L351 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 14 treesize of output 16 [2023-09-07 12:22:55,182 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-07 12:22:55,182 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 12:22:55,206 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_101 (Array Int Int))) (not (= (select (select (store |c_#pthreadsMutex| |c_~#mutex_B~0.base| v_ArrVal_101) |c_~#mutex_A~0.base|) |c_~#mutex_A~0.offset|) 0))) is different from false [2023-09-07 12:22:55,219 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-09-07 12:22:55,220 INFO L351 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2023-09-07 12:22:55,241 INFO L351 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 33 treesize of output 25 [2023-09-07 12:22:55,313 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2023-09-07 12:22:55,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320601808] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 12:22:55,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 12:22:55,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-09-07 12:22:55,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485819442] [2023-09-07 12:22:55,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 12:22:55,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-07 12:22:55,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 12:22:55,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-07 12:22:55,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=58, Unknown=1, NotChecked=16, Total=110 [2023-09-07 12:22:55,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:22:55,320 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 12:22:55,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 12:22:55,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-07 12:22:55,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:22:55,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:22:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-07 12:22:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:22:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:22:55,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-09-07 12:22:55,642 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,SelfDestructingSolverStorable2 [2023-09-07 12:22:55,643 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 12:22:55,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 12:22:55,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1914020005, now seen corresponding path program 1 times [2023-09-07 12:22:55,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 12:22:55,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494121609] [2023-09-07 12:22:55,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:22:55,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 12:22:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:22:55,986 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-09-07 12:22:55,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 12:22:55,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494121609] [2023-09-07 12:22:55,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494121609] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 12:22:55,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087387232] [2023-09-07 12:22:55,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:22:55,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 12:22:55,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 12:22:55,988 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) [2023-09-07 12:22:55,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-07 12:22:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:22:56,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 10 conjunts are in the unsatisfiable core [2023-09-07 12:22:56,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 12:22:56,258 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 12:22:56,258 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 12:22:56,372 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 12:22:56,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087387232] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 12:22:56,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 12:22:56,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-09-07 12:22:56,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912766167] [2023-09-07 12:22:56,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 12:22:56,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-07 12:22:56,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 12:22:56,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-07 12:22:56,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-09-07 12:22:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:22:56,376 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 12:22:56,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 12:22:56,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-07 12:22:56,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:22:56,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:22:56,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:23:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-07 12:23:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:23:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-07 12:23:02,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-09-07 12:23:02,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 12:23:02,305 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 12:23:02,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 12:23:02,305 INFO L85 PathProgramCache]: Analyzing trace with hash 930704412, now seen corresponding path program 1 times [2023-09-07 12:23:02,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 12:23:02,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685487237] [2023-09-07 12:23:02,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:23:02,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 12:23:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:23:02,917 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 241 proven. 6 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-09-07 12:23:02,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 12:23:02,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685487237] [2023-09-07 12:23:02,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685487237] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 12:23:02,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969528100] [2023-09-07 12:23:02,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:23:02,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 12:23:02,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 12:23:02,920 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) [2023-09-07 12:23:02,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-07 12:23:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:23:03,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 16 conjunts are in the unsatisfiable core [2023-09-07 12:23:03,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 12:23:03,182 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2023-09-07 12:23:03,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 12:23:03,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969528100] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 12:23:03,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 12:23:03,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2023-09-07 12:23:03,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745251372] [2023-09-07 12:23:03,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 12:23:03,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-07 12:23:03,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 12:23:03,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-07 12:23:03,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-09-07 12:23:03,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:23:03,186 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 12:23:03,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 8 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 12:23:03,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-07 12:23:03,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:23:03,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:03,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-09-07 12:23:03,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:23:07,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-07 12:23:07,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:23:07,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:07,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-07 12:23:07,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-07 12:23:07,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-09-07 12:23:07,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 12:23:07,975 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 12:23:07,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 12:23:07,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1981152404, now seen corresponding path program 2 times [2023-09-07 12:23:07,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 12:23:07,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156441313] [2023-09-07 12:23:07,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:23:07,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 12:23:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:23:08,869 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 298 proven. 6 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2023-09-07 12:23:08,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 12:23:08,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156441313] [2023-09-07 12:23:08,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156441313] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 12:23:08,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046895652] [2023-09-07 12:23:08,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 12:23:08,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 12:23:08,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 12:23:08,871 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) [2023-09-07 12:23:08,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-09-07 12:23:09,086 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 12:23:09,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 12:23:09,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 10 conjunts are in the unsatisfiable core [2023-09-07 12:23:09,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 12:23:09,388 INFO L351 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 11 treesize of output 7 [2023-09-07 12:23:09,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 12:23:09,429 INFO L351 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 14 treesize of output 16 [2023-09-07 12:23:09,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 12:23:09,441 INFO L351 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 14 treesize of output 16 [2023-09-07 12:23:09,455 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 298 proven. 6 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2023-09-07 12:23:09,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 12:23:09,507 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-09-07 12:23:09,507 INFO L351 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2023-09-07 12:23:09,512 INFO L351 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 33 treesize of output 25 [2023-09-07 12:23:09,642 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 298 proven. 6 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2023-09-07 12:23:09,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046895652] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 12:23:09,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 12:23:09,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-09-07 12:23:09,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663133959] [2023-09-07 12:23:09,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 12:23:09,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-07 12:23:09,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 12:23:09,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-07 12:23:09,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-09-07 12:23:09,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:23:09,651 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 12:23:09,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.545454545454547) internal successors, (248), 11 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 12:23:09,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-07 12:23:09,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:23:09,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:09,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-09-07 12:23:09,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-07 12:23:09,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:23:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-07 12:23:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:23:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-09-07 12:23:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 12:23:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:14,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-09-07 12:23:14,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 12:23:14,748 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 12:23:14,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 12:23:14,748 INFO L85 PathProgramCache]: Analyzing trace with hash -580199155, now seen corresponding path program 3 times [2023-09-07 12:23:14,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 12:23:14,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616782654] [2023-09-07 12:23:14,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:23:14,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 12:23:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:23:15,284 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 315 proven. 9 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-09-07 12:23:15,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 12:23:15,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616782654] [2023-09-07 12:23:15,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616782654] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 12:23:15,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681989167] [2023-09-07 12:23:15,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-07 12:23:15,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 12:23:15,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 12:23:15,285 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 12:23:15,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-09-07 12:23:15,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-09-07 12:23:15,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 12:23:15,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 20 conjunts are in the unsatisfiable core [2023-09-07 12:23:15,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 12:23:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 315 proven. 9 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-09-07 12:23:15,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 12:23:15,623 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 315 proven. 9 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-09-07 12:23:15,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681989167] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 12:23:15,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 12:23:15,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2023-09-07 12:23:15,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097442613] [2023-09-07 12:23:15,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 12:23:15,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-07 12:23:15,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 12:23:15,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-07 12:23:15,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-09-07 12:23:15,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:23:15,626 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 12:23:15,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.307692307692308) internal successors, (186), 13 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 12:23:15,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-07 12:23:15,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:23:15,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:15,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2023-09-07 12:23:15,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 12:23:15,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:15,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:23:30,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-07 12:23:30,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:23:30,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:30,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-09-07 12:23:30,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 12:23:30,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:30,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2023-09-07 12:23:30,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-09-07 12:23:30,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 12:23:30,439 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 12:23:30,439 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 12:23:30,439 INFO L85 PathProgramCache]: Analyzing trace with hash -341316969, now seen corresponding path program 1 times [2023-09-07 12:23:30,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 12:23:30,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454360202] [2023-09-07 12:23:30,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:23:30,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 12:23:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:23:30,874 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 341 proven. 52 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2023-09-07 12:23:30,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 12:23:30,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454360202] [2023-09-07 12:23:30,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454360202] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 12:23:30,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746675799] [2023-09-07 12:23:30,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:23:30,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 12:23:30,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 12:23:30,875 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 12:23:30,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-09-07 12:23:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:23:31,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 20 conjunts are in the unsatisfiable core [2023-09-07 12:23:31,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 12:23:31,202 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 352 proven. 41 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2023-09-07 12:23:31,202 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 12:23:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 341 proven. 52 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2023-09-07 12:23:31,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746675799] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 12:23:31,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 12:23:31,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 14 [2023-09-07 12:23:31,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410844410] [2023-09-07 12:23:31,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 12:23:31,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-09-07 12:23:31,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 12:23:31,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-09-07 12:23:31,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-09-07 12:23:31,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:23:31,301 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 12:23:31,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.428571428571429) internal successors, (202), 14 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 12:23:31,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-07 12:23:31,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:23:31,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:31,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2023-09-07 12:23:31,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 12:23:31,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:31,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2023-09-07 12:23:31,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:23:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-07 12:23:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:23:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-09-07 12:23:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 12:23:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2023-09-07 12:23:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-09-07 12:23:45,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-09-07 12:23:45,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 12:23:45,875 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 12:23:45,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 12:23:45,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1762865862, now seen corresponding path program 1 times [2023-09-07 12:23:45,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 12:23:45,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283119383] [2023-09-07 12:23:45,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:23:45,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 12:23:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:23:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 307 proven. 41 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2023-09-07 12:23:46,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 12:23:46,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283119383] [2023-09-07 12:23:46,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283119383] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 12:23:46,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005702649] [2023-09-07 12:23:46,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 12:23:46,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 12:23:46,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 12:23:46,606 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 12:23:46,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-09-07 12:23:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 12:23:46,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 28 conjunts are in the unsatisfiable core [2023-09-07 12:23:46,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 12:23:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 318 proven. 30 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2023-09-07 12:23:46,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 12:23:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 307 proven. 41 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2023-09-07 12:23:47,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005702649] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 12:23:47,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 12:23:47,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 15 [2023-09-07 12:23:47,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222314747] [2023-09-07 12:23:47,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 12:23:47,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-09-07 12:23:47,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 12:23:47,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-09-07 12:23:47,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-09-07 12:23:47,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 12:23:47,098 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 12:23:47,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 13.666666666666666) internal successors, (205), 15 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 12:23:47,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-07 12:23:47,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 12:23:47,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:47,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2023-09-07 12:23:47,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 12:23:47,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 12:23:47,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2023-09-07 12:23:47,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-09-07 12:23:47,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.