/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/weaver/unroll-cond-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 14:20:51,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 14:20:51,715 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-07 14:20:51,721 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 14:20:51,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 14:20:51,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 14:20:51,756 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 14:20:51,757 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 14:20:51,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 14:20:51,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 14:20:51,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 14:20:51,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 14:20:51,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 14:20:51,764 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 14:20:51,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 14:20:51,764 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 14:20:51,764 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 14:20:51,764 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 14:20:51,765 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 14:20:51,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 14:20:51,765 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 14:20:51,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 14:20:51,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 14:20:51,767 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 14:20:51,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 14:20:51,767 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 14:20:51,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 14:20:51,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 14:20:51,768 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 14:20:51,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 14:20:51,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 14:20:51,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 14:20:51,769 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 14:20:51,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 14:20:51,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 14:20:51,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 14:20:51,770 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 14:20:51,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 14:20:51,770 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 14:20:51,770 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-07 14:20:51,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL [2023-09-07 14:20:52,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 14:20:52,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 14:20:52,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 14:20:52,031 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 14:20:52,031 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 14:20:52,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-cond-4.wvr.c [2023-09-07 14:20:53,264 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 14:20:53,440 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 14:20:53,440 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-4.wvr.c [2023-09-07 14:20:53,447 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0d5937a/b04d0efce0644d3d84e8b1f18bac14bf/FLAGc07c7df53 [2023-09-07 14:20:53,459 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0d5937a/b04d0efce0644d3d84e8b1f18bac14bf [2023-09-07 14:20:53,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 14:20:53,462 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 14:20:53,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 14:20:53,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 14:20:53,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 14:20:53,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 02:20:53" (1/1) ... [2023-09-07 14:20:53,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a383461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53, skipping insertion in model container [2023-09-07 14:20:53,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 02:20:53" (1/1) ... [2023-09-07 14:20:53,500 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 14:20:53,637 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-4.wvr.c[2808,2821] [2023-09-07 14:20:53,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 14:20:53,653 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 14:20:53,674 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-4.wvr.c[2808,2821] [2023-09-07 14:20:53,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 14:20:53,689 INFO L206 MainTranslator]: Completed translation [2023-09-07 14:20:53,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53 WrapperNode [2023-09-07 14:20:53,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 14:20:53,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 14:20:53,694 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 14:20:53,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 14:20:53,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53" (1/1) ... [2023-09-07 14:20:53,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53" (1/1) ... [2023-09-07 14:20:53,730 INFO L138 Inliner]: procedures = 24, calls = 41, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 187 [2023-09-07 14:20:53,730 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 14:20:53,731 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 14:20:53,731 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 14:20:53,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 14:20:53,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53" (1/1) ... [2023-09-07 14:20:53,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53" (1/1) ... [2023-09-07 14:20:53,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53" (1/1) ... [2023-09-07 14:20:53,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53" (1/1) ... [2023-09-07 14:20:53,749 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53" (1/1) ... [2023-09-07 14:20:53,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53" (1/1) ... [2023-09-07 14:20:53,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53" (1/1) ... [2023-09-07 14:20:53,759 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53" (1/1) ... [2023-09-07 14:20:53,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 14:20:53,762 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 14:20:53,762 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 14:20:53,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 14:20:53,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53" (1/1) ... [2023-09-07 14:20:53,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 14:20:53,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 14:20:53,798 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 14:20:53,806 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 14:20:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 14:20:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-07 14:20:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-07 14:20:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-07 14:20:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-07 14:20:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 14:20:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 14:20:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 14:20:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-07 14:20:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 14:20:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 14:20:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 14:20:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 14:20:53,830 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 14:20:53,911 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 14:20:53,913 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 14:20:54,216 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 14:20:54,225 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 14:20:54,226 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-09-07 14:20:54,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 02:20:54 BoogieIcfgContainer [2023-09-07 14:20:54,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 14:20:54,237 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 14:20:54,237 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 14:20:54,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 14:20:54,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 02:20:53" (1/3) ... [2023-09-07 14:20:54,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a25a4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 02:20:54, skipping insertion in model container [2023-09-07 14:20:54,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 02:20:53" (2/3) ... [2023-09-07 14:20:54,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a25a4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 02:20:54, skipping insertion in model container [2023-09-07 14:20:54,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 02:20:54" (3/3) ... [2023-09-07 14:20:54,242 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.c [2023-09-07 14:20:54,250 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 14:20:54,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 14:20:54,260 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 14:20:54,261 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 14:20:54,406 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-07 14:20:54,459 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 14:20:54,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 14:20:54,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 14:20:54,460 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 14:20:54,464 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 14:20:54,498 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 14:20:54,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 14:20:54,511 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;@34b3e6a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 14:20:54,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 14:20:54,907 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 14:20:54,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 14:20:54,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1109422877, now seen corresponding path program 1 times [2023-09-07 14:20:54,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 14:20:54,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429908053] [2023-09-07 14:20:54,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 14:20:54,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 14:20:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 14:20:55,156 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 14:20:55,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 14:20:55,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429908053] [2023-09-07 14:20:55,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429908053] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 14:20:55,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 14:20:55,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-07 14:20:55,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779219613] [2023-09-07 14:20:55,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 14:20:55,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-07 14:20:55,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 14:20:55,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-07 14:20:55,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-07 14:20:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:20:55,190 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 14:20:55,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 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 14:20:55,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:20:55,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:20:55,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 14:20:55,267 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 14:20:55,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 14:20:55,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1252701437, now seen corresponding path program 1 times [2023-09-07 14:20:55,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 14:20:55,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28465494] [2023-09-07 14:20:55,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 14:20:55,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 14:20:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 14:20:55,998 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 14:20:55,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 14:20:55,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28465494] [2023-09-07 14:20:55,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28465494] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 14:20:55,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 14:20:55,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-07 14:20:55,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858213039] [2023-09-07 14:20:56,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 14:20:56,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-07 14:20:56,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 14:20:56,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-07 14:20:56,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-09-07 14:20:56,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:20:56,006 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 14:20:56,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 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 14:20:56,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:20:56,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:20:56,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:20:56,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:20:56,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-07 14:20:56,288 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 14:20:56,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 14:20:56,289 INFO L85 PathProgramCache]: Analyzing trace with hash 556230855, now seen corresponding path program 1 times [2023-09-07 14:20:56,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 14:20:56,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454563847] [2023-09-07 14:20:56,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 14:20:56,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 14:20:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 14:20:56,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 14:20:56,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 14:20:56,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454563847] [2023-09-07 14:20:56,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454563847] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 14:20:56,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168580685] [2023-09-07 14:20:56,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 14:20:56,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 14:20:56,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 14:20:56,823 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 14:20:56,824 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 14:20:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 14:20:56,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 9 conjunts are in the unsatisfiable core [2023-09-07 14:20:56,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 14:20:57,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 14:20:57,226 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 14:20:57,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168580685] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 14:20:57,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 14:20:57,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2023-09-07 14:20:57,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513844779] [2023-09-07 14:20:57,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 14:20:57,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-07 14:20:57,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 14:20:57,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-07 14:20:57,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-09-07 14:20:57,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:20:57,232 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 14:20:57,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 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 14:20:57,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:20:57,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:20:57,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:20:57,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:20:57,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:20:57,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:20:57,498 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 14:20:57,694 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 14:20:57,695 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 14:20:57,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 14:20:57,696 INFO L85 PathProgramCache]: Analyzing trace with hash -394116039, now seen corresponding path program 1 times [2023-09-07 14:20:57,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 14:20:57,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833399388] [2023-09-07 14:20:57,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 14:20:57,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 14:20:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 14:20:58,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 14:20:58,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 14:20:58,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833399388] [2023-09-07 14:20:58,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833399388] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 14:20:58,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570211758] [2023-09-07 14:20:58,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 14:20:58,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 14:20:58,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 14:20:58,118 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 14:20:58,129 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 14:20:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 14:20:58,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 33 conjunts are in the unsatisfiable core [2023-09-07 14:20:58,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 14:20:58,938 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 15 treesize of output 7 [2023-09-07 14:20:59,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 14:20:59,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 14:20:59,665 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-09-07 14:20:59,665 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2023-09-07 14:21:00,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 14:21:00,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570211758] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 14:21:00,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 14:21:00,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 18, 18] total 38 [2023-09-07 14:21:00,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631027694] [2023-09-07 14:21:00,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 14:21:00,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-09-07 14:21:00,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 14:21:00,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-09-07 14:21:00,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1288, Unknown=0, NotChecked=0, Total=1406 [2023-09-07 14:21:00,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:00,501 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 14:21:00,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 9.526315789473685) internal successors, (362), 38 states have internal predecessors, (362), 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 14:21:00,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:00,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:21:00,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:21:00,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:01,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:01,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:21:01,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:21:01,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 14:21:01,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-09-07 14:21:02,127 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 14:21:02,128 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 14:21:02,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 14:21:02,128 INFO L85 PathProgramCache]: Analyzing trace with hash -665670539, now seen corresponding path program 2 times [2023-09-07 14:21:02,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 14:21:02,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479067009] [2023-09-07 14:21:02,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 14:21:02,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 14:21:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 14:21:02,582 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-09-07 14:21:02,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 14:21:02,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479067009] [2023-09-07 14:21:02,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479067009] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 14:21:02,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582427407] [2023-09-07 14:21:02,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 14:21:02,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 14:21:02,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 14:21:02,584 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 14:21:02,610 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 14:21:02,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 14:21:02,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 14:21:02,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 22 conjunts are in the unsatisfiable core [2023-09-07 14:21:02,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 14:21:02,965 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-09-07 14:21:02,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 14:21:03,345 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-09-07 14:21:03,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582427407] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 14:21:03,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 14:21:03,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 23 [2023-09-07 14:21:03,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998404572] [2023-09-07 14:21:03,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 14:21:03,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-09-07 14:21:03,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 14:21:03,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-09-07 14:21:03,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2023-09-07 14:21:03,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:03,353 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 14:21:03,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.869565217391305) internal successors, (204), 23 states have internal predecessors, (204), 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 14:21:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:21:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:21:03,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 14:21:03,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:04,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:04,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:21:04,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:21:04,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 14:21:04,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 14:21:04,138 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 14:21:04,338 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 14:21:04,338 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 14:21:04,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 14:21:04,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1526731713, now seen corresponding path program 3 times [2023-09-07 14:21:04,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 14:21:04,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295261328] [2023-09-07 14:21:04,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 14:21:04,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 14:21:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 14:21:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 14:21:12,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 14:21:12,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295261328] [2023-09-07 14:21:12,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295261328] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 14:21:12,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007958791] [2023-09-07 14:21:12,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-07 14:21:12,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 14:21:12,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 14:21:12,077 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 14:21:12,080 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 14:21:12,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-09-07 14:21:12,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 14:21:12,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 73 conjunts are in the unsatisfiable core [2023-09-07 14:21:12,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 14:21:13,191 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 14:21:13,783 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 6 treesize of output 5 [2023-09-07 14:21:13,909 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 6 treesize of output 5 [2023-09-07 14:21:15,362 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-09-07 14:21:15,362 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 47 [2023-09-07 14:21:15,392 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 14:21:15,392 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 14:21:18,280 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-09-07 14:21:18,281 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 272 treesize of output 164 [2023-09-07 14:21:18,422 INFO L322 Elim1Store]: treesize reduction 5, result has 96.7 percent of original size [2023-09-07 14:21:18,422 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 816 treesize of output 835 [2023-09-07 14:21:18,598 INFO L322 Elim1Store]: treesize reduction 8, result has 94.8 percent of original size [2023-09-07 14:21:18,599 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 185 treesize of output 241 [2023-09-07 14:21:19,238 INFO L322 Elim1Store]: treesize reduction 8, result has 94.8 percent of original size [2023-09-07 14:21:19,239 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 128 treesize of output 244 [2023-09-07 14:21:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 14:21:23,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007958791] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 14:21:23,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 14:21:23,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 38, 34] total 105 [2023-09-07 14:21:23,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160199374] [2023-09-07 14:21:23,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 14:21:23,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2023-09-07 14:21:23,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 14:21:23,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2023-09-07 14:21:23,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=997, Invalid=9878, Unknown=45, NotChecked=0, Total=10920 [2023-09-07 14:21:23,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:23,976 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 14:21:23,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 4.228571428571429) internal successors, (444), 105 states have internal predecessors, (444), 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 14:21:23,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:23,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:21:23,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:21:23,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 14:21:23,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 14:21:23,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:31,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:21:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:21:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 14:21:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 14:21:31,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-09-07 14:21:31,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-09-07 14:21:32,128 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 14:21:32,129 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 14:21:32,129 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 14:21:32,129 INFO L85 PathProgramCache]: Analyzing trace with hash 276837243, now seen corresponding path program 4 times [2023-09-07 14:21:32,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 14:21:32,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162820584] [2023-09-07 14:21:32,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 14:21:32,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 14:21:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 14:21:32,688 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 2 proven. 74 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 14:21:32,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 14:21:32,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162820584] [2023-09-07 14:21:32,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162820584] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 14:21:32,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307068940] [2023-09-07 14:21:32,689 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-09-07 14:21:32,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 14:21:32,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 14:21:32,690 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 14:21:32,693 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 14:21:32,874 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-09-07 14:21:32,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 14:21:32,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 24 conjunts are in the unsatisfiable core [2023-09-07 14:21:32,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 14:21:33,257 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 14:21:33,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 14:21:34,185 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 4 proven. 72 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 14:21:34,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307068940] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 14:21:34,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 14:21:34,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 14] total 37 [2023-09-07 14:21:34,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879996662] [2023-09-07 14:21:34,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 14:21:34,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-09-07 14:21:34,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 14:21:34,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-09-07 14:21:34,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=1064, Unknown=0, NotChecked=0, Total=1332 [2023-09-07 14:21:34,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:34,189 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 14:21:34,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.756756756756757) internal successors, (287), 37 states have internal predecessors, (287), 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 14:21:34,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:34,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:21:34,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:21:34,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 14:21:34,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 14:21:34,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2023-09-07 14:21:34,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:35,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:35,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:21:35,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:21:35,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 14:21:35,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 14:21:35,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-09-07 14:21:35,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-09-07 14:21:35,909 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 14:21:36,110 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 14:21:36,110 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 14:21:36,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 14:21:36,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1316486101, now seen corresponding path program 1 times [2023-09-07 14:21:36,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 14:21:36,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516962271] [2023-09-07 14:21:36,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 14:21:36,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 14:21:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 14:21:37,217 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 14:21:37,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 14:21:37,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516962271] [2023-09-07 14:21:37,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516962271] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 14:21:37,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21969314] [2023-09-07 14:21:37,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 14:21:37,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 14:21:37,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 14:21:37,219 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 14:21:37,221 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 14:21:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 14:21:37,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 53 conjunts are in the unsatisfiable core [2023-09-07 14:21:37,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 14:21:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 14:21:38,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 14:21:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 14:21:40,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21969314] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 14:21:40,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 14:21:40,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28, 30] total 72 [2023-09-07 14:21:40,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386590416] [2023-09-07 14:21:40,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 14:21:40,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2023-09-07 14:21:40,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 14:21:40,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2023-09-07 14:21:40,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=4623, Unknown=0, NotChecked=0, Total=5112 [2023-09-07 14:21:40,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:40,772 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 14:21:40,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 6.388888888888889) internal successors, (460), 72 states have internal predecessors, (460), 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 14:21:40,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:40,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:21:40,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:21:40,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 14:21:40,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 14:21:40,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2023-09-07 14:21:40,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-09-07 14:21:40,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:21:47,912 WARN L234 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 102 DAG size of output: 96 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 14:22:00,385 WARN L234 SmtUtils]: Spent 10.24s on a formula simplification. DAG size of input: 104 DAG size of output: 98 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 14:22:31,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:22:31,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:22:31,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:22:31,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 14:22:31,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 14:22:31,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-09-07 14:22:31,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-09-07 14:22:31,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-09-07 14:22:31,604 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 14:22:31,801 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 14:22:31,801 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 14:22:31,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 14:22:31,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1851359129, now seen corresponding path program 2 times [2023-09-07 14:22:31,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 14:22:31,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104355983] [2023-09-07 14:22:31,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 14:22:31,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 14:22:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 14:22:33,549 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 14:22:33,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 14:22:33,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104355983] [2023-09-07 14:22:33,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104355983] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 14:22:33,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475508112] [2023-09-07 14:22:33,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 14:22:33,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 14:22:33,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 14:22:33,552 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 14:22:33,557 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 14:22:34,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 14:22:34,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 14:22:34,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 63 conjunts are in the unsatisfiable core [2023-09-07 14:22:34,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 14:22:34,887 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 14:22:34,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 14:22:36,819 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 14:22:36,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475508112] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 14:22:36,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 14:22:36,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33, 34] total 75 [2023-09-07 14:22:36,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069418612] [2023-09-07 14:22:36,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 14:22:36,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2023-09-07 14:22:36,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 14:22:36,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2023-09-07 14:22:36,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=5127, Unknown=0, NotChecked=0, Total=5550 [2023-09-07 14:22:36,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:22:36,827 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 14:22:36,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 7.173333333333333) internal successors, (538), 75 states have internal predecessors, (538), 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 14:22:36,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:22:36,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:22:36,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:22:36,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 14:22:36,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 14:22:36,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2023-09-07 14:22:36,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-09-07 14:22:36,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2023-09-07 14:22:36,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:28:41,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:28:41,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:28:41,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:28:41,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 14:28:41,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 14:28:41,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-09-07 14:28:41,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-09-07 14:28:41,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-09-07 14:28:41,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 318 states. [2023-09-07 14:28:41,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-09-07 14:28:41,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-09-07 14:28:41,775 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 14:28:41,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 14:28:41,776 INFO L85 PathProgramCache]: Analyzing trace with hash -596413797, now seen corresponding path program 3 times [2023-09-07 14:28:41,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 14:28:41,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749341997] [2023-09-07 14:28:41,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 14:28:41,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 14:28:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 14:28:46,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 2347 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 14:28:46,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 14:28:46,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749341997] [2023-09-07 14:28:46,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749341997] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 14:28:46,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100064987] [2023-09-07 14:28:46,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-07 14:28:46,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 14:28:46,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 14:28:46,134 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 14:28:46,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-09-07 14:28:52,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-09-07 14:28:52,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 14:28:52,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 100 conjunts are in the unsatisfiable core [2023-09-07 14:28:52,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 14:29:30,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 1476 proven. 527 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-09-07 14:29:30,064 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 14:30:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 1728 proven. 275 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-09-07 14:30:19,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100064987] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 14:30:19,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 14:30:19,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 49, 57] total 162 [2023-09-07 14:30:19,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939868551] [2023-09-07 14:30:19,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 14:30:19,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 162 states [2023-09-07 14:30:19,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 14:30:19,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2023-09-07 14:30:19,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2530, Invalid=23552, Unknown=0, NotChecked=0, Total=26082 [2023-09-07 14:30:19,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:30:19,201 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 14:30:19,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 162 states, 162 states have (on average 6.037037037037037) internal successors, (978), 162 states have internal predecessors, (978), 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 14:30:19,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:30:19,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 14:30:19,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 14:30:19,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 14:30:19,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 14:30:19,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2023-09-07 14:30:19,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-09-07 14:30:19,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2023-09-07 14:30:19,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 318 states. [2023-09-07 14:30:19,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 14:30:21,246 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse19 (mod (+ |c_thread2Thread1of1ForFork1_~i~1#1| 3) 4294967296)) (.cse15 (mod (+ |c_thread2Thread1of1ForFork1_~i~1#1| 4) 4294967296)) (.cse17 (mod (+ |c_thread2Thread1of1ForFork1_~i~1#1| 8) 4294967296)) (.cse21 (mod (+ |c_thread2Thread1of1ForFork1_~i~1#1| 6) 4294967296)) (.cse8 (mod (+ 7 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296)) (.cse18 (mod (+ 5 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296))) (let ((.cse5 (+ (mod (+ 9 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296) 1)) (.cse13 (+ .cse18 1)) (.cse6 (+ .cse8 1)) (.cse14 (+ .cse21 1)) (.cse7 (+ .cse17 1)) (.cse16 (+ .cse15 1)) (.cse20 (+ .cse19 1)) (.cse3 (mod c_~n~0 4294967296)) (.cse1 (mod (+ c_~n~0 4294967293) 4294967296)) (.cse2 (mod (+ 4294967295 c_~n~0) 4294967296)) (.cse4 (mod (+ 4294967294 c_~n~0) 4294967296))) (and (let ((.cse0 (mod (+ 6 |c_thread2Thread1of1ForFork1_#t~post8#1|) 4294967296))) (or (< .cse0 .cse1) (< .cse2 (+ (mod (+ 7 |c_thread2Thread1of1ForFork1_#t~post8#1|) 4294967296) 1)) (< .cse3 (+ (mod (+ |c_thread2Thread1of1ForFork1_#t~post8#1| 8) 4294967296) 1)) (< .cse4 (+ .cse0 1)))) (or (< .cse2 (+ (mod (+ |c_thread2Thread1of1ForFork1_#t~post12#1| 1) 4294967296) 1)) (< .cse3 (+ (mod (+ |c_thread2Thread1of1ForFork1_#t~post12#1| 2) 4294967296) 1))) (or (< .cse3 .cse5) (< .cse4 .cse6) (< .cse2 .cse7) (< .cse8 .cse1)) (let ((.cse9 (mod (+ 7 |c_thread2Thread1of1ForFork1_#t~post6#1|) 4294967296))) (or (< .cse3 (+ (mod (+ 9 |c_thread2Thread1of1ForFork1_#t~post6#1|) 4294967296) 1)) (< .cse9 .cse1) (< .cse4 (+ .cse9 1)) (< .cse2 (+ (mod (+ |c_thread2Thread1of1ForFork1_#t~post6#1| 8) 4294967296) 1)))) (let ((.cse10 (mod (+ |c_thread2Thread1of1ForFork1_#t~post10#1| 1) 4294967296))) (or (< .cse3 (+ (mod (+ 3 |c_thread2Thread1of1ForFork1_#t~post10#1|) 4294967296) 1)) (< .cse4 (+ .cse10 1)) (< .cse10 .cse1) (< .cse2 (+ (mod (+ 2 |c_thread2Thread1of1ForFork1_#t~post10#1|) 4294967296) 1)))) (let ((.cse11 (mod (+ 3 |c_thread2Thread1of1ForFork1_#t~post6#1|) 4294967296))) (or (< .cse4 (+ .cse11 1)) (< .cse11 .cse1) (< .cse2 (+ (mod (+ |c_thread2Thread1of1ForFork1_#t~post6#1| 4) 4294967296) 1)) (< .cse3 (+ (mod (+ 5 |c_thread2Thread1of1ForFork1_#t~post6#1|) 4294967296) 1)))) (let ((.cse12 (mod (+ |c_thread2Thread1of1ForFork1_#t~post4#1| 8) 4294967296))) (or (< .cse4 (+ .cse12 1)) (< .cse12 .cse1) (< .cse2 (+ (mod (+ |c_thread2Thread1of1ForFork1_#t~post4#1| 9) 4294967296) 1)) (< .cse3 (+ (mod (+ |c_thread2Thread1of1ForFork1_#t~post4#1| 10) 4294967296) 1)))) (< .cse3 (+ (mod (+ |c_thread2Thread1of1ForFork1_#t~post14#1| 1) 4294967296) 1)) (or (< .cse2 .cse13) (< .cse3 .cse14) (< .cse15 .cse1) (< .cse4 .cse16)) (or (< .cse2 .cse5) (< .cse17 .cse1) (< .cse4 .cse7) (< .cse3 (+ (mod (+ |c_thread2Thread1of1ForFork1_~i~1#1| 10) 4294967296) 1))) (or (< .cse4 .cse13) (< .cse3 .cse6) (< .cse18 .cse1) (< .cse2 .cse14)) (or (< .cse19 .cse1) (< .cse3 .cse13) (< .cse2 .cse16) (< .cse4 .cse20)) (or (< 8 .cse1) (< .cse3 11)) (< .cse3 (+ (mod (+ |c_thread2Thread1of1ForFork1_~i~1#1| 1) 4294967296) 1)) (or (< .cse2 .cse6) (< .cse4 .cse14) (< .cse3 .cse7) (< .cse21 .cse1)) (let ((.cse22 (mod (+ 2 |c_thread2Thread1of1ForFork1_~i~1#1|) 4294967296))) (or (< .cse22 .cse1) (< .cse3 .cse16) (< .cse2 .cse20) (< .cse4 (+ .cse22 1)))) (let ((.cse23 (mod (+ 5 |c_thread2Thread1of1ForFork1_#t~post10#1|) 4294967296))) (or (< .cse3 (+ (mod (+ 7 |c_thread2Thread1of1ForFork1_#t~post10#1|) 4294967296) 1)) (< .cse4 (+ .cse23 1)) (< .cse2 (+ (mod (+ 6 |c_thread2Thread1of1ForFork1_#t~post10#1|) 4294967296) 1)) (< .cse23 .cse1))) (let ((.cse24 (mod (+ 2 |c_thread2Thread1of1ForFork1_#t~post8#1|) 4294967296))) (or (< .cse4 (+ .cse24 1)) (< .cse3 (+ (mod (+ |c_thread2Thread1of1ForFork1_#t~post8#1| 4) 4294967296) 1)) (< .cse2 (+ (mod (+ 3 |c_thread2Thread1of1ForFork1_#t~post8#1|) 4294967296) 1)) (< .cse24 .cse1))) (<= .cse3 (mod |c_thread2Thread1of1ForFork1_~i~1#1| 4294967296)) (let ((.cse25 (mod (+ |c_thread2Thread1of1ForFork1_#t~post4#1| 4) 4294967296))) (or (< .cse3 (+ (mod (+ |c_thread2Thread1of1ForFork1_#t~post4#1| 6) 4294967296) 1)) (< .cse25 .cse1) (< .cse2 (+ (mod (+ |c_thread2Thread1of1ForFork1_#t~post4#1| 5) 4294967296) 1)) (< .cse4 (+ .cse25 1))))))) is different from false Received shutdown request... [2023-09-07 14:34:51,219 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 14:34:51,219 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 14:34:51,219 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 14:34:52,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-09-07 14:34:52,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-09-07 14:34:52,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-07 14:34:52,406 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:264) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:167) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:376) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:202) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:202) at de.uni_freiburg.informatik.ultimate.automata.partialorder.MinimalSleepSetReduction.internalSuccessors(MinimalSleepSetReduction.java:154) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$0(INwaOutgoingLetterAndTransitionProvider.java:123) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.nextLetter(NestedIterator.java:69) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.next(NestedIterator.java:94) at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133) at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEachOrdered(ReferencePipeline.java:502) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.visitState(DepthFirstTraversal.java:236) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:165) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.(DepthFirstTraversal.java:98) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:122) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:364) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:466) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-09-07 14:34:52,409 INFO L158 Benchmark]: Toolchain (without parser) took 838947.02ms. Allocated memory was 225.4MB in the beginning and 627.0MB in the end (delta: 401.6MB). Free memory was 175.9MB in the beginning and 444.8MB in the end (delta: -268.9MB). Peak memory consumption was 134.0MB. Max. memory is 7.0GB. [2023-09-07 14:34:52,409 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 160.4MB. Free memory is still 114.6MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-07 14:34:52,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.30ms. Allocated memory is still 225.4MB. Free memory was 175.5MB in the beginning and 164.0MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 7.0GB. [2023-09-07 14:34:52,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.81ms. Allocated memory is still 225.4MB. Free memory was 163.6MB in the beginning and 161.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-07 14:34:52,410 INFO L158 Benchmark]: Boogie Preprocessor took 30.69ms. Allocated memory is still 225.4MB. Free memory was 161.5MB in the beginning and 159.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-07 14:34:52,410 INFO L158 Benchmark]: RCFGBuilder took 468.35ms. Allocated memory is still 225.4MB. Free memory was 159.8MB in the beginning and 140.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 7.0GB. [2023-09-07 14:34:52,410 INFO L158 Benchmark]: TraceAbstraction took 838171.97ms. Allocated memory was 225.4MB in the beginning and 627.0MB in the end (delta: 401.6MB). Free memory was 139.9MB in the beginning and 444.8MB in the end (delta: -304.9MB). Peak memory consumption was 97.3MB. Max. memory is 7.0GB. [2023-09-07 14:34:52,412 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 160.4MB. Free memory is still 114.6MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 226.30ms. Allocated memory is still 225.4MB. Free memory was 175.5MB in the beginning and 164.0MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 39.81ms. Allocated memory is still 225.4MB. Free memory was 163.6MB in the beginning and 161.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * Boogie Preprocessor took 30.69ms. Allocated memory is still 225.4MB. Free memory was 161.5MB in the beginning and 159.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * RCFGBuilder took 468.35ms. Allocated memory is still 225.4MB. Free memory was 159.8MB in the beginning and 140.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 7.0GB. * TraceAbstraction took 838171.97ms. Allocated memory was 225.4MB in the beginning and 627.0MB in the end (delta: 401.6MB). Free memory was 139.9MB in the beginning and 444.8MB in the end (delta: -304.9MB). Peak memory consumption was 97.3MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown