/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -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/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-e23131f-m [2024-05-03 03:59:04,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-03 03:59:04,417 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-03 03:59:04,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-03 03:59:04,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-03 03:59:04,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-03 03:59:04,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-03 03:59:04,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-03 03:59:04,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-03 03:59:04,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-03 03:59:04,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-03 03:59:04,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-03 03:59:04,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-03 03:59:04,461 INFO L153 SettingsManager]: * Use SBE=true [2024-05-03 03:59:04,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-03 03:59:04,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-03 03:59:04,462 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-03 03:59:04,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-03 03:59:04,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-03 03:59:04,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-03 03:59:04,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-03 03:59:04,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-03 03:59:04,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-03 03:59:04,464 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-03 03:59:04,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-03 03:59:04,464 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-03 03:59:04,464 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-03 03:59:04,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-03 03:59:04,465 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-03 03:59:04,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-03 03:59:04,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 03:59:04,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-03 03:59:04,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-03 03:59:04,467 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-03 03:59:04,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-03 03:59:04,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-03 03:59:04,467 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-03 03:59:04,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-03 03:59:04,467 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-03 03:59:04,468 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-03 03:59:04,468 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-03 03:59:04,468 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-03 03:59:04,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-03 03:59:04,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-03 03:59:04,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-03 03:59:04,797 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-03 03:59:04,797 INFO L274 PluginConnector]: CDTParser initialized [2024-05-03 03:59:04,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c [2024-05-03 03:59:06,065 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-03 03:59:06,269 INFO L384 CDTParser]: Found 1 translation units. [2024-05-03 03:59:06,270 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c [2024-05-03 03:59:06,276 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/10e8eda02/cd29176840a343b19fa13401a4926ea2/FLAGd69248bb7 [2024-05-03 03:59:06,290 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/10e8eda02/cd29176840a343b19fa13401a4926ea2 [2024-05-03 03:59:06,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-03 03:59:06,294 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-03 03:59:06,295 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-03 03:59:06,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-03 03:59:06,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-03 03:59:06,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 03:59:06" (1/1) ... [2024-05-03 03:59:06,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78780283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06, skipping insertion in model container [2024-05-03 03:59:06,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 03:59:06" (1/1) ... [2024-05-03 03:59:06,330 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-03 03:59:06,492 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c[1849,1862] [2024-05-03 03:59:06,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 03:59:06,512 INFO L202 MainTranslator]: Completed pre-run [2024-05-03 03:59:06,529 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c[1849,1862] [2024-05-03 03:59:06,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 03:59:06,543 INFO L206 MainTranslator]: Completed translation [2024-05-03 03:59:06,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06 WrapperNode [2024-05-03 03:59:06,544 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-03 03:59:06,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-03 03:59:06,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-03 03:59:06,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-03 03:59:06,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06" (1/1) ... [2024-05-03 03:59:06,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06" (1/1) ... [2024-05-03 03:59:06,577 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-05-03 03:59:06,578 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-03 03:59:06,579 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-03 03:59:06,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-03 03:59:06,579 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-03 03:59:06,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06" (1/1) ... [2024-05-03 03:59:06,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06" (1/1) ... [2024-05-03 03:59:06,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06" (1/1) ... [2024-05-03 03:59:06,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06" (1/1) ... [2024-05-03 03:59:06,594 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06" (1/1) ... [2024-05-03 03:59:06,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06" (1/1) ... [2024-05-03 03:59:06,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06" (1/1) ... [2024-05-03 03:59:06,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06" (1/1) ... [2024-05-03 03:59:06,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-03 03:59:06,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-03 03:59:06,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-03 03:59:06,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-03 03:59:06,612 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06" (1/1) ... [2024-05-03 03:59:06,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 03:59:06,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:59:06,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-05-03 03:59:06,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-05-03 03:59:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-03 03:59:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-03 03:59:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-03 03:59:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-03 03:59:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-03 03:59:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-03 03:59:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-03 03:59:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-03 03:59:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-03 03:59:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-03 03:59:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-03 03:59:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-03 03:59:06,734 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-03 03:59:06,835 INFO L241 CfgBuilder]: Building ICFG [2024-05-03 03:59:06,837 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-03 03:59:07,002 INFO L282 CfgBuilder]: Performing block encoding [2024-05-03 03:59:07,014 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-03 03:59:07,014 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2024-05-03 03:59:07,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 03:59:07 BoogieIcfgContainer [2024-05-03 03:59:07,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-03 03:59:07,017 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-03 03:59:07,017 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-03 03:59:07,020 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-03 03:59:07,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 03:59:06" (1/3) ... [2024-05-03 03:59:07,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d270cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 03:59:07, skipping insertion in model container [2024-05-03 03:59:07,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:59:06" (2/3) ... [2024-05-03 03:59:07,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d270cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 03:59:07, skipping insertion in model container [2024-05-03 03:59:07,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 03:59:07" (3/3) ... [2024-05-03 03:59:07,024 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp1x3.wvr.c [2024-05-03 03:59:07,033 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-03 03:59:07,041 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-03 03:59:07,042 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-03 03:59:07,042 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-03 03:59:07,089 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-03 03:59:07,127 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 03:59:07,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-03 03:59:07,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:59:07,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-03 03:59:07,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-05-03 03:59:07,176 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-03 03:59:07,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-03 03:59:07,193 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;@539add3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 03:59:07,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-03 03:59:07,201 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:59:07,285 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:59:07,285 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:59:07,286 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 03:59:07,299 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 103 states. [2024-05-03 03:59:07,299 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 03:59:07,302 INFO L78 Accepts]: Start accepts. Automaton has currently 106 states, but on-demand construction may add more states Word has length 61 [2024-05-03 03:59:07,305 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:59:07,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 03:59:07,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:59:07,313 INFO L85 PathProgramCache]: Analyzing trace with hash -870694445, now seen corresponding path program 1 times [2024-05-03 03:59:07,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:59:07,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847222474] [2024-05-03 03:59:07,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:59:07,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:59:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 03:59:07,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 03:59:07,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:59:07,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847222474] [2024-05-03 03:59:07,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847222474] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 03:59:07,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 03:59:07,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-03 03:59:07,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919272619] [2024-05-03 03:59:07,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 03:59:07,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-03 03:59:07,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:59:07,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-03 03:59:07,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-03 03:59:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:07,640 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:59:07,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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) [2024-05-03 03:59:07,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:07,644 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:59:07,670 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:59:07,671 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:59:07,671 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 03:59:07,691 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 126 states. [2024-05-03 03:59:07,691 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 03:59:07,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:07,692 INFO L78 Accepts]: Start accepts. Automaton has currently 129 states, but on-demand construction may add more states Word has length 59 [2024-05-03 03:59:07,693 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:59:07,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-03 03:59:07,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 03:59:07,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:59:07,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1612850139, now seen corresponding path program 1 times [2024-05-03 03:59:07,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:59:07,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403831844] [2024-05-03 03:59:07,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:59:07,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:59:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 03:59:08,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 03:59:08,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:59:08,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403831844] [2024-05-03 03:59:08,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403831844] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 03:59:08,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 03:59:08,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-03 03:59:08,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822963063] [2024-05-03 03:59:08,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 03:59:08,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-03 03:59:08,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:59:08,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-03 03:59:08,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-05-03 03:59:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:08,344 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:59:08,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2024-05-03 03:59:08,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:08,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:08,346 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:59:08,500 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:59:08,501 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:59:08,501 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 03:59:08,547 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 133 states. [2024-05-03 03:59:08,547 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 03:59:08,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:08,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 03:59:08,549 INFO L78 Accepts]: Start accepts. Automaton has currently 136 states, but on-demand construction may add more states Word has length 61 [2024-05-03 03:59:08,550 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:59:08,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-03 03:59:08,550 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 03:59:08,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:59:08,551 INFO L85 PathProgramCache]: Analyzing trace with hash -729434594, now seen corresponding path program 1 times [2024-05-03 03:59:08,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:59:08,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429168708] [2024-05-03 03:59:08,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:59:08,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:59:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 03:59:08,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 03:59:08,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:59:08,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429168708] [2024-05-03 03:59:08,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429168708] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 03:59:08,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920278867] [2024-05-03 03:59:08,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:59:08,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:59:08,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:59:08,967 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 03:59:08,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-03 03:59:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 03:59:09,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjunts are in the unsatisfiable core [2024-05-03 03:59:09,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 03:59:09,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 03:59:09,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 03:59:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 03:59:09,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920278867] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 03:59:09,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 03:59:09,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2024-05-03 03:59:09,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960011658] [2024-05-03 03:59:09,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 03:59:09,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-05-03 03:59:09,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:59:09,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-05-03 03:59:09,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-05-03 03:59:09,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:09,664 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:59:09,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 13 states have internal predecessors, (95), 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) [2024-05-03 03:59:09,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:09,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 03:59:09,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:09,664 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:59:09,843 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:59:09,843 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:59:09,844 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 03:59:09,873 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 139 states. [2024-05-03 03:59:09,873 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 03:59:09,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:09,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 03:59:09,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 03:59:09,874 INFO L78 Accepts]: Start accepts. Automaton has currently 145 states, but on-demand construction may add more states Word has length 63 [2024-05-03 03:59:09,874 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:59:09,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-05-03 03:59:10,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-05-03 03:59:10,082 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 03:59:10,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:59:10,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1520593121, now seen corresponding path program 1 times [2024-05-03 03:59:10,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:59:10,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606014740] [2024-05-03 03:59:10,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:59:10,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:59:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 03:59:10,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 03:59:10,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:59:10,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606014740] [2024-05-03 03:59:10,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606014740] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 03:59:10,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112466554] [2024-05-03 03:59:10,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:59:10,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:59:10,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:59:10,689 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 03:59:10,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-03 03:59:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 03:59:10,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 17 conjunts are in the unsatisfiable core [2024-05-03 03:59:10,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 03:59:36,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 03:59:36,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 03:59:48,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 03:59:48,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112466554] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 03:59:48,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 03:59:48,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-05-03 03:59:48,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764360813] [2024-05-03 03:59:48,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 03:59:48,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-05-03 03:59:48,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:59:48,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-05-03 03:59:48,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=504, Unknown=13, NotChecked=0, Total=650 [2024-05-03 03:59:48,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:48,902 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:59:48,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 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) [2024-05-03 03:59:48,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:48,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 03:59:48,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 03:59:48,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:59:48,903 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:59:57,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 04:00:00,805 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:00:00,806 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:00:00,806 INFO L370 cStratifiedReduction]: Actual level: [~x1~0, ~x2~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ~n~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] [2024-05-03 04:00:00,809 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:00:00,810 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~x1~0, ~x2~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ~n~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] [2024-05-03 04:00:00,810 INFO L370 cStratifiedReduction]: Actual level: [~x1~0, ~x2~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ~n~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] [2024-05-03 04:00:00,940 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 156 states. [2024-05-03 04:00:00,940 INFO L212 cStratifiedReduction]: Copied states 4 times. [2024-05-03 04:00:00,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:00:00,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 04:00:00,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 04:00:00,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-05-03 04:00:00,941 INFO L78 Accepts]: Start accepts. Automaton has currently 159 states, but on-demand construction may add more states Word has length 67 [2024-05-03 04:00:00,941 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 04:00:00,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-05-03 04:00:01,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 04:00:01,151 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 04:00:01,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 04:00:01,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1993127335, now seen corresponding path program 2 times [2024-05-03 04:00:01,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 04:00:01,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580004779] [2024-05-03 04:00:01,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 04:00:01,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 04:00:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 04:00:01,524 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-03 04:00:01,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 04:00:01,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580004779] [2024-05-03 04:00:01,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580004779] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 04:00:01,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069289116] [2024-05-03 04:00:01,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-03 04:00:01,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 04:00:01,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 04:00:01,531 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 04:00:01,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-03 04:00:12,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-03 04:00:12,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 04:00:12,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 14 conjunts are in the unsatisfiable core [2024-05-03 04:00:12,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 04:00:13,654 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-03 04:00:13,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 04:00:14,850 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-03 04:00:14,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069289116] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 04:00:14,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 04:00:14,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 20 [2024-05-03 04:00:14,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907450455] [2024-05-03 04:00:14,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 04:00:14,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-05-03 04:00:14,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 04:00:14,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-05-03 04:00:14,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2024-05-03 04:00:14,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:00:14,853 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 04:00:14,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 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) [2024-05-03 04:00:14,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:00:14,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 04:00:14,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 04:00:14,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-05-03 04:00:14,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:00:14,854 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 04:00:17,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 04:00:21,884 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:00:21,885 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 04:00:21,885 INFO L370 cStratifiedReduction]: Actual level: [~x1~0, ~x2~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ~n~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] [2024-05-03 04:00:21,887 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 04:00:21,888 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~x1~0, ~x2~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ~n~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] [2024-05-03 04:00:21,888 INFO L370 cStratifiedReduction]: Actual level: [~x1~0, ~x2~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ~n~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] [2024-05-03 04:00:22,113 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 162 states. [2024-05-03 04:00:22,113 INFO L212 cStratifiedReduction]: Copied states 4 times. [2024-05-03 04:00:22,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:00:22,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-03 04:00:22,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-05-03 04:00:22,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-05-03 04:00:22,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-03 04:00:22,118 INFO L78 Accepts]: Start accepts. Automaton has currently 167 states, but on-demand construction may add more states Word has length 69 [2024-05-03 04:00:22,118 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 04:00:22,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-05-03 04:00:22,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 04:00:22,327 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 04:00:22,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 04:00:22,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2027443670, now seen corresponding path program 3 times [2024-05-03 04:00:22,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 04:00:22,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345954608] [2024-05-03 04:00:22,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 04:00:22,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 04:00:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 04:00:22,624 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 04:00:22,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 04:00:22,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345954608] [2024-05-03 04:00:22,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345954608] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 04:00:22,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115777052] [2024-05-03 04:00:22,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-03 04:00:22,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 04:00:22,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 04:00:22,627 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 04:00:22,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Received shutdown request... [2024-05-03 04:13:41,149 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-05-03 04:13:41,149 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-05-03 04:13:41,149 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-05-03 04:13:42,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-05-03 04:13:42,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2024-05-03 04:13:42,360 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2024-05-03 04:13:42,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2024-05-03 04:13:42,371 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-05-03 04:13:42,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-05-03 04:13:42,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-05-03 04:13:42,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341165517] [2024-05-03 04:13:42,372 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-05-03 04:13:42,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-05-03 04:13:42,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 04:13:42,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-05-03 04:13:42,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-05-03 04:13:42,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:13:42,373 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 04:13:42,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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) [2024-05-03 04:13:42,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:13:42,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-03 04:13:42,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-05-03 04:13:42,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-05-03 04:13:42,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-03 04:13:42,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 04:13:42,373 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 04:13:42,374 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1 states. [2024-05-03 04:13:42,374 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 04:13:42,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-03 04:13:42,374 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DynamicStratifiedReduction. [2024-05-03 04:13:42,376 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-05-03 04:13:42,381 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2024-05-03 04:13:42,383 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/3) [2024-05-03 04:13:42,384 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-03 04:13:42,384 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-03 04:13:42,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 04:13:42 BasicIcfg [2024-05-03 04:13:42,386 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-03 04:13:42,387 INFO L158 Benchmark]: Toolchain (without parser) took 876093.12ms. Allocated memory was 286.3MB in the beginning and 355.5MB in the end (delta: 69.2MB). Free memory was 214.2MB in the beginning and 142.8MB in the end (delta: 71.5MB). Peak memory consumption was 141.3MB. Max. memory is 8.0GB. [2024-05-03 04:13:42,387 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 286.3MB. Free memory is still 252.8MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-03 04:13:42,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.64ms. Allocated memory is still 286.3MB. Free memory was 214.2MB in the beginning and 202.9MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-05-03 04:13:42,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.25ms. Allocated memory is still 286.3MB. Free memory was 202.9MB in the beginning and 201.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-05-03 04:13:42,388 INFO L158 Benchmark]: Boogie Preprocessor took 31.59ms. Allocated memory is still 286.3MB. Free memory was 201.3MB in the beginning and 199.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-03 04:13:42,388 INFO L158 Benchmark]: RCFGBuilder took 403.54ms. Allocated memory is still 286.3MB. Free memory was 199.9MB in the beginning and 187.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-05-03 04:13:42,389 INFO L158 Benchmark]: TraceAbstraction took 875369.48ms. Allocated memory was 286.3MB in the beginning and 355.5MB in the end (delta: 69.2MB). Free memory was 185.9MB in the beginning and 142.8MB in the end (delta: 43.2MB). Peak memory consumption was 113.0MB. Max. memory is 8.0GB. [2024-05-03 04:13:42,390 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 286.3MB. Free memory is still 252.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 248.64ms. Allocated memory is still 286.3MB. Free memory was 214.2MB in the beginning and 202.9MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.25ms. Allocated memory is still 286.3MB. Free memory was 202.9MB in the beginning and 201.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.59ms. Allocated memory is still 286.3MB. Free memory was 201.3MB in the beginning and 199.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 403.54ms. Allocated memory is still 286.3MB. Free memory was 199.9MB in the beginning and 187.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 875369.48ms. Allocated memory was 286.3MB in the beginning and 355.5MB in the end (delta: 69.2MB). Free memory was 185.9MB in the beginning and 142.8MB in the end (delta: 43.2MB). Peak memory consumption was 113.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 70, independent: 40, independent conditional: 40, independent unconditional: 0, dependent: 30, dependent conditional: 30, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 40, independent: 40, independent conditional: 40, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 40, independent: 40, independent conditional: 40, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 40, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 40, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 40, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 40, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 40, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 40, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 40, unknown conditional: 0, unknown unconditional: 40] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 40, Positive conditional cache size: 0, Positive unconditional cache size: 40, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 30 - StatisticsResult: Reduction benchmarks 23.4ms Time before loop, 73.2ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 3, Reduction States: 103, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 18.8ms Time before loop, 28.1ms Time in loop, 0.0s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 3, Reduction States: 126, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 136.5ms Time before loop, 64.0ms Time in loop, 0.2s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 3, Reduction States: 133, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 164.0ms Time before loop, 44.2ms Time in loop, 0.2s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 3, Reduction States: 139, Duplicate States: 0, Protected Variables: 5 - StatisticsResult: Reduction benchmarks 11859.5ms Time before loop, 177.5ms Time in loop, 12.0s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 156, Duplicate States: 4, Protected Variables: 5 - StatisticsResult: Reduction benchmarks 6832.3ms Time before loop, 425.9ms Time in loop, 7.3s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 162, Duplicate States: 4, Protected Variables: 5 - StatisticsResult: Reduction benchmarks 0.2ms Time before loop, 0.0ms Time in loop, 0.0s Time in total, Has Loop: 0, wrong guesses: 0, overall guesses: 0, Reduction States: 1, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Visitor Statistics States: 68, Transitions: 71, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 68, Transitions: 73, Traversal time: 0.0s - StatisticsResult: Visitor Statistics States: 70, Transitions: 75, Traversal time: 0.2s - StatisticsResult: Visitor Statistics States: 74, Transitions: 81, Traversal time: 0.2s - StatisticsResult: Visitor Statistics States: 82, Transitions: 91, Traversal time: 12.0s - StatisticsResult: Visitor Statistics States: 86, Transitions: 97, Traversal time: 7.3s - StatisticsResult: Visitor Statistics States: 1, Transitions: 0, Traversal time: 0.0s - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 14, RedundantProofs: 6, ProvenStates: 25, Times there's more than one choice: 19, Avg number of choices: 3.04 - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing DynamicStratifiedReduction. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 5 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 875.2s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 19.9s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 11.8s SatisfiabilityAnalysisTime, 42.7s InterpolantComputationTime, 571 NumberOfCodeBlocks, 571 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 750 ConstructedInterpolants, 0 QuantifiedInterpolants, 8950 SizeOfPredicates, 23 NumberOfNonLiveVariables, 429 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 6/52 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown