/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/popl20-more-nonblocking-counter-alt2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-e23131f-m [2024-05-03 05:12:02,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-03 05:12:02,199 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-03 05:12:02,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-03 05:12:02,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-03 05:12:02,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-03 05:12:02,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-03 05:12:02,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-03 05:12:02,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-03 05:12:02,241 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-03 05:12:02,241 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-03 05:12:02,242 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-03 05:12:02,242 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-03 05:12:02,244 INFO L153 SettingsManager]: * Use SBE=true [2024-05-03 05:12:02,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-03 05:12:02,244 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-03 05:12:02,245 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-03 05:12:02,245 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-03 05:12:02,245 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-03 05:12:02,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-03 05:12:02,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-03 05:12:02,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-03 05:12:02,247 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-03 05:12:02,247 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-03 05:12:02,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-03 05:12:02,248 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-03 05:12:02,248 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-03 05:12:02,248 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-03 05:12:02,249 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-03 05:12:02,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-03 05:12:02,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 05:12:02,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-03 05:12:02,251 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-03 05:12:02,251 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-03 05:12:02,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-03 05:12:02,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-03 05:12:02,251 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-03 05:12:02,251 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-03 05:12:02,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-03 05:12:02,252 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-03 05:12:02,252 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-03 05:12:02,252 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-03 05:12:02,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-03 05:12:02,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-03 05:12:02,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-03 05:12:02,574 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-03 05:12:02,575 INFO L274 PluginConnector]: CDTParser initialized [2024-05-03 05:12:02,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-05-03 05:12:03,807 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-03 05:12:03,978 INFO L384 CDTParser]: Found 1 translation units. [2024-05-03 05:12:03,978 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-05-03 05:12:03,985 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/539373b87/67e29170a5ff4303a60b9560d4d65b2b/FLAG7281e4c5f [2024-05-03 05:12:03,998 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/539373b87/67e29170a5ff4303a60b9560d4d65b2b [2024-05-03 05:12:04,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-03 05:12:04,001 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-03 05:12:04,002 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-03 05:12:04,002 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-03 05:12:04,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-03 05:12:04,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 05:12:03" (1/1) ... [2024-05-03 05:12:04,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a00e386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04, skipping insertion in model container [2024-05-03 05:12:04,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 05:12:03" (1/1) ... [2024-05-03 05:12:04,027 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-03 05:12:04,174 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/popl20-more-nonblocking-counter-alt2.wvr.c[2147,2160] [2024-05-03 05:12:04,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 05:12:04,187 INFO L202 MainTranslator]: Completed pre-run [2024-05-03 05:12:04,206 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/popl20-more-nonblocking-counter-alt2.wvr.c[2147,2160] [2024-05-03 05:12:04,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 05:12:04,223 INFO L206 MainTranslator]: Completed translation [2024-05-03 05:12:04,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04 WrapperNode [2024-05-03 05:12:04,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-03 05:12:04,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-03 05:12:04,229 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-03 05:12:04,229 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-03 05:12:04,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04" (1/1) ... [2024-05-03 05:12:04,253 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04" (1/1) ... [2024-05-03 05:12:04,282 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2024-05-03 05:12:04,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-03 05:12:04,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-03 05:12:04,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-03 05:12:04,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-03 05:12:04,291 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04" (1/1) ... [2024-05-03 05:12:04,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04" (1/1) ... [2024-05-03 05:12:04,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04" (1/1) ... [2024-05-03 05:12:04,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04" (1/1) ... [2024-05-03 05:12:04,311 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04" (1/1) ... [2024-05-03 05:12:04,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04" (1/1) ... [2024-05-03 05:12:04,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04" (1/1) ... [2024-05-03 05:12:04,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04" (1/1) ... [2024-05-03 05:12:04,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-03 05:12:04,323 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-03 05:12:04,323 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-03 05:12:04,323 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-03 05:12:04,324 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04" (1/1) ... [2024-05-03 05:12:04,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 05:12:04,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:12:04,359 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 05:12:04,386 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 05:12:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-03 05:12:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-03 05:12:04,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-03 05:12:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-03 05:12:04,422 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-03 05:12:04,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-03 05:12:04,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-03 05:12:04,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-03 05:12:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-03 05:12:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-03 05:12:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-03 05:12:04,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-03 05:12:04,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-03 05:12:04,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-03 05:12:04,426 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 05:12:04,533 INFO L241 CfgBuilder]: Building ICFG [2024-05-03 05:12:04,535 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-03 05:12:04,737 INFO L282 CfgBuilder]: Performing block encoding [2024-05-03 05:12:04,787 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-03 05:12:04,787 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2024-05-03 05:12:04,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 05:12:04 BoogieIcfgContainer [2024-05-03 05:12:04,788 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-03 05:12:04,791 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-03 05:12:04,791 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-03 05:12:04,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-03 05:12:04,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 05:12:03" (1/3) ... [2024-05-03 05:12:04,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afcb55a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 05:12:04, skipping insertion in model container [2024-05-03 05:12:04,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 05:12:04" (2/3) ... [2024-05-03 05:12:04,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afcb55a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 05:12:04, skipping insertion in model container [2024-05-03 05:12:04,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 05:12:04" (3/3) ... [2024-05-03 05:12:04,796 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-nonblocking-counter-alt2.wvr.c [2024-05-03 05:12:04,804 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-03 05:12:04,813 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-03 05:12:04,814 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-03 05:12:04,814 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-03 05:12:04,862 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-03 05:12:04,900 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 05:12:04,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-03 05:12:04,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:12:04,904 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 05:12:04,913 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 05:12:04,950 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-03 05:12:04,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-03 05:12:04,964 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;@6322fd02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 05:12:04,965 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-03 05:12:04,972 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:12:05,063 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:05,063 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:05,063 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:12:05,073 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:05,074 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:05,074 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:12:05,088 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:05,088 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:05,089 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:12:05,102 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:05,102 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:05,102 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:12:05,109 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 106 states. [2024-05-03 05:12:05,109 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:12:05,113 INFO L78 Accepts]: Start accepts. Automaton has currently 111 states, but on-demand construction may add more states Word has length 61 [2024-05-03 05:12:05,115 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:12:05,116 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:12:05,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:12:05,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1564838823, now seen corresponding path program 1 times [2024-05-03 05:12:05,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:12:05,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745687335] [2024-05-03 05:12:05,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:12:05,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:12:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:12:05,367 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 05:12:05,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:12:05,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745687335] [2024-05-03 05:12:05,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745687335] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 05:12:05,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 05:12:05,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-03 05:12:05,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397260070] [2024-05-03 05:12:05,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 05:12:05,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-03 05:12:05,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:12:05,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-03 05:12:05,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-03 05:12:05,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:05,398 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:12:05,399 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 05:12:05,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:05,401 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:12:05,450 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:05,450 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:05,450 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:12:05,458 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:05,459 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:05,459 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:12:05,464 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:05,465 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:05,465 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:12:05,480 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:05,480 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:05,480 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:12:05,496 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 114 states. [2024-05-03 05:12:05,496 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:12:05,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:05,497 INFO L78 Accepts]: Start accepts. Automaton has currently 119 states, but on-demand construction may add more states Word has length 59 [2024-05-03 05:12:05,498 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:12:05,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-03 05:12:05,499 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:12:05,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:12:05,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1407552855, now seen corresponding path program 1 times [2024-05-03 05:12:05,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:12:05,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407082191] [2024-05-03 05:12:05,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:12:05,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:12:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:12:05,935 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 05:12:05,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:12:05,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407082191] [2024-05-03 05:12:05,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407082191] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 05:12:05,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 05:12:05,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-03 05:12:05,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831590791] [2024-05-03 05:12:05,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 05:12:05,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-03 05:12:05,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:12:05,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-03 05:12:05,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-05-03 05:12:05,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:05,939 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:12:05,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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 05:12:05,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:05,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:05,940 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:12:06,047 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:06,047 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:06,048 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:12:06,058 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:06,059 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:06,059 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:12:06,064 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:06,064 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:06,064 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:12:06,081 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 118 states. [2024-05-03 05:12:06,081 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:12:06,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:06,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:06,084 INFO L78 Accepts]: Start accepts. Automaton has currently 123 states, but on-demand construction may add more states Word has length 64 [2024-05-03 05:12:06,085 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:12:06,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-03 05:12:06,085 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:12:06,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:12:06,087 INFO L85 PathProgramCache]: Analyzing trace with hash -196916522, now seen corresponding path program 1 times [2024-05-03 05:12:06,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:12:06,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225148216] [2024-05-03 05:12:06,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:12:06,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:12:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:12:06,313 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 05:12:06,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:12:06,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225148216] [2024-05-03 05:12:06,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225148216] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:12:06,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555282809] [2024-05-03 05:12:06,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:12:06,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:12:06,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:12:06,350 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 05:12:06,372 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 05:12:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:12:06,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-03 05:12:06,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:12:06,564 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 05:12:06,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:12:06,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:12:06,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555282809] provided 1 perfect and 1 imperfect interpolant sequences [2024-05-03 05:12:06,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-05-03 05:12:06,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 7 [2024-05-03 05:12:06,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155815703] [2024-05-03 05:12:06,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 05:12:06,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-03 05:12:06,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:12:06,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-03 05:12:06,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-05-03 05:12:06,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:06,640 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:12:06,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 05:12:06,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:06,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:06,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:06,640 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:12:06,700 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:06,700 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:06,700 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 05:12:06,717 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:06,718 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~M~0, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:06,718 INFO L370 cStratifiedReduction]: Actual level: [~M~0, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:06,729 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:06,729 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~M~0, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:06,730 INFO L370 cStratifiedReduction]: Actual level: [~M~0, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:06,737 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 126 states. [2024-05-03 05:12:06,737 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:12:06,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:06,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:06,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:06,738 INFO L78 Accepts]: Start accepts. Automaton has currently 132 states, but on-demand construction may add more states Word has length 66 [2024-05-03 05:12:06,739 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:12:06,746 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 05:12:06,945 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 05:12:06,945 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:12:06,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:12:06,946 INFO L85 PathProgramCache]: Analyzing trace with hash 905656089, now seen corresponding path program 1 times [2024-05-03 05:12:06,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:12:06,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632980468] [2024-05-03 05:12:06,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:12:06,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:12:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:12:07,445 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 05:12:07,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:12:07,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632980468] [2024-05-03 05:12:07,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632980468] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:12:07,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642314191] [2024-05-03 05:12:07,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:12:07,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:12:07,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:12:07,448 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 05:12:07,450 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 05:12:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:12:07,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 16 conjunts are in the unsatisfiable core [2024-05-03 05:12:07,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:12:07,763 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 05:12:07,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:12:08,122 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 05:12:08,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642314191] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:12:08,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:12:08,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 20 [2024-05-03 05:12:08,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504691706] [2024-05-03 05:12:08,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:12:08,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-05-03 05:12:08,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:12:08,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-05-03 05:12:08,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2024-05-03 05:12:08,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:08,126 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:12:08,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 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 05:12:08,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:08,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:08,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:08,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:08,128 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:12:08,314 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:08,314 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:08,315 INFO L370 cStratifiedReduction]: Actual level: [~M~0, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:08,322 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:08,323 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~M~0, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:08,323 INFO L370 cStratifiedReduction]: Actual level: [~M~0, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:08,348 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 123 states. [2024-05-03 05:12:08,348 INFO L212 cStratifiedReduction]: Copied states 4 times. [2024-05-03 05:12:08,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:08,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:08,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:08,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-03 05:12:08,349 INFO L78 Accepts]: Start accepts. Automaton has currently 125 states, but on-demand construction may add more states Word has length 71 [2024-05-03 05:12:08,352 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:12:08,359 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 05:12:08,559 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 05:12:08,560 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:12:08,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:12:08,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1445716806, now seen corresponding path program 2 times [2024-05-03 05:12:08,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:12:08,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306946155] [2024-05-03 05:12:08,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:12:08,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:12:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:12:08,849 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:12:08,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:12:08,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306946155] [2024-05-03 05:12:08,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306946155] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:12:08,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909778563] [2024-05-03 05:12:08,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-03 05:12:08,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:12:08,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:12:08,852 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 05:12:08,879 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 05:12:08,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-03 05:12:08,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:12:08,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 16 conjunts are in the unsatisfiable core [2024-05-03 05:12:08,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:12:09,062 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:12:09,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:12:09,318 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:12:09,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909778563] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:12:09,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:12:09,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 11] total 20 [2024-05-03 05:12:09,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660716112] [2024-05-03 05:12:09,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:12:09,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-05-03 05:12:09,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:12:09,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-05-03 05:12:09,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-05-03 05:12:09,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:09,324 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:12:09,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.9) internal successors, (98), 20 states have internal predecessors, (98), 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 05:12:09,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:09,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:09,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:09,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-03 05:12:09,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:09,325 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:12:10,083 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:10,083 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 05:12:10,083 INFO L370 cStratifiedReduction]: Actual level: [~M~0, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:10,085 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:10,086 INFO L369 cStratifiedReduction]: Guessed abstraction level: [~M~0, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:10,086 INFO L370 cStratifiedReduction]: Actual level: [~M~0, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:10,184 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:10,184 INFO L369 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_~i~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ~M~0, ~counter~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1, thread1Thread1of1ForFork0_#t~post1, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:10,184 INFO L370 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_~i~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ~M~0, ~counter~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1, thread1Thread1of1ForFork0_#t~post1, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:10,389 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 05:12:10,389 INFO L369 cStratifiedReduction]: Guessed abstraction level: [thread1Thread1of1ForFork0_~i~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ~M~0, ~counter~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1, thread1Thread1of1ForFork0_#t~post1, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:10,389 INFO L370 cStratifiedReduction]: Actual level: [thread1Thread1of1ForFork0_~i~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ~M~0, ~counter~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1, thread1Thread1of1ForFork0_#t~post1, thread2Thread1of1ForFork1_~i~1] [2024-05-03 05:12:10,491 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 181 states. [2024-05-03 05:12:10,492 INFO L212 cStratifiedReduction]: Copied states 4 times. [2024-05-03 05:12:10,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:10,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:10,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:10,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-03 05:12:10,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-05-03 05:12:10,492 INFO L78 Accepts]: Start accepts. Automaton has currently 189 states, but on-demand construction may add more states Word has length 78 [2024-05-03 05:12:10,493 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:12:10,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-05-03 05:12:10,693 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 05:12:10,694 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:12:10,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:12:10,695 INFO L85 PathProgramCache]: Analyzing trace with hash 299983596, now seen corresponding path program 3 times [2024-05-03 05:12:10,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:12:10,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324224288] [2024-05-03 05:12:10,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:12:10,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:12:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:12:11,422 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:12:11,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:12:11,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324224288] [2024-05-03 05:12:11,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324224288] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:12:11,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10014527] [2024-05-03 05:12:11,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-03 05:12:11,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:12:11,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:12:11,426 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 05:12:11,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-03 05:12:11,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-05-03 05:12:11,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:12:11,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 23 conjunts are in the unsatisfiable core [2024-05-03 05:12:11,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:12:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:12:11,988 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:12:12,626 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:12:12,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10014527] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:12:12,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:12:12,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 15] total 31 [2024-05-03 05:12:12,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094058187] [2024-05-03 05:12:12,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:12:12,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-05-03 05:12:12,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:12:12,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-05-03 05:12:12,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=813, Unknown=0, NotChecked=0, Total=930 [2024-05-03 05:12:12,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:12,629 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:12:12,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.354838709677419) internal successors, (135), 31 states have internal predecessors, (135), 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 05:12:12,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:12,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:12,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:12,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-03 05:12:12,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-05-03 05:12:12,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:12,630 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:12:13,754 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 139 states. [2024-05-03 05:12:13,754 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:12:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-03 05:12:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-05-03 05:12:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-05-03 05:12:13,755 INFO L78 Accepts]: Start accepts. Automaton has currently 140 states, but on-demand construction may add more states Word has length 85 [2024-05-03 05:12:13,763 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:12:13,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-03 05:12:13,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-05-03 05:12:13,964 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:12:13,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:12:13,964 INFO L85 PathProgramCache]: Analyzing trace with hash 992032224, now seen corresponding path program 4 times [2024-05-03 05:12:13,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:12:13,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293495080] [2024-05-03 05:12:13,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:12:13,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:12:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:12:15,139 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:12:15,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:12:15,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293495080] [2024-05-03 05:12:15,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293495080] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:12:15,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982724399] [2024-05-03 05:12:15,140 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-05-03 05:12:15,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:12:15,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:12:15,141 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:12:15,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-03 05:12:15,210 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-05-03 05:12:15,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:12:15,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 26 conjunts are in the unsatisfiable core [2024-05-03 05:12:15,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:12:17,234 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:12:17,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:12:18,096 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:12:18,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982724399] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:12:18,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:12:18,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 14, 17] total 47 [2024-05-03 05:12:18,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313235899] [2024-05-03 05:12:18,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:12:18,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-05-03 05:12:18,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:12:18,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-05-03 05:12:18,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1952, Unknown=0, NotChecked=0, Total=2162 [2024-05-03 05:12:18,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:18,100 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:12:18,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.9361702127659575) internal successors, (185), 47 states have internal predecessors, (185), 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 05:12:18,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:18,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:18,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:18,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-03 05:12:18,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-05-03 05:12:18,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-05-03 05:12:18,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:18,101 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:12:19,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:12:21,988 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 164 states. [2024-05-03 05:12:21,988 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:12:21,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:21,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:21,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:21,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-03 05:12:21,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-05-03 05:12:21,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-05-03 05:12:21,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-05-03 05:12:21,989 INFO L78 Accepts]: Start accepts. Automaton has currently 165 states, but on-demand construction may add more states Word has length 97 [2024-05-03 05:12:21,990 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:12:22,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-05-03 05:12:22,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:12:22,191 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:12:22,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:12:22,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1072869629, now seen corresponding path program 5 times [2024-05-03 05:12:22,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:12:22,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471264651] [2024-05-03 05:12:22,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:12:22,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:12:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:12:23,711 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:12:23,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:12:23,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471264651] [2024-05-03 05:12:23,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471264651] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:12:23,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877791636] [2024-05-03 05:12:23,712 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-05-03 05:12:23,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:12:23,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:12:23,717 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:12:23,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-05-03 05:12:24,030 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-05-03 05:12:24,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:12:24,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 29 conjunts are in the unsatisfiable core [2024-05-03 05:12:24,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:12:24,990 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-05-03 05:12:24,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:12:26,310 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-03 05:12:26,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877791636] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:12:26,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:12:26,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 18, 18] total 46 [2024-05-03 05:12:26,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691555217] [2024-05-03 05:12:26,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:12:26,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-05-03 05:12:26,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:12:26,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-05-03 05:12:26,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=1839, Unknown=0, NotChecked=0, Total=2070 [2024-05-03 05:12:26,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:26,313 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:12:26,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 3.5869565217391304) internal successors, (165), 46 states have internal predecessors, (165), 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 05:12:26,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:26,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:26,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:26,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-03 05:12:26,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-05-03 05:12:26,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-05-03 05:12:26,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-05-03 05:12:26,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:26,314 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:12:34,025 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 211 states. [2024-05-03 05:12:34,025 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:12:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:12:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:12:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:12:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-03 05:12:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-05-03 05:12:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-05-03 05:12:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-05-03 05:12:34,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-05-03 05:12:34,027 INFO L78 Accepts]: Start accepts. Automaton has currently 212 states, but on-demand construction may add more states Word has length 119 [2024-05-03 05:12:34,028 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:12:34,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-05-03 05:12:34,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-05-03 05:12:34,234 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:12:34,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:12:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1757715142, now seen corresponding path program 6 times [2024-05-03 05:12:34,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:12:34,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975210689] [2024-05-03 05:12:34,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:12:34,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:12:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:12:40,343 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:12:40,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:12:40,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975210689] [2024-05-03 05:12:40,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975210689] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:12:40,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349345501] [2024-05-03 05:12:40,344 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-05-03 05:12:40,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:12:40,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:12:40,345 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:12:40,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-05-03 05:12:40,600 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-05-03 05:12:40,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 05:12:40,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 36 conjunts are in the unsatisfiable core [2024-05-03 05:12:40,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:16:37,621 WARN L293 SmtUtils]: Spent 1.31m on a formula simplification. DAG size of input: 582 DAG size of output: 572 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-05-03 05:16:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 208 refuted. 2 times theorem prover too weak. 50 trivial. 0 not checked. [2024-05-03 05:16:39,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 05:16:49,231 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-05-03 05:16:49,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349345501] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 05:16:49,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-03 05:16:49,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 20, 23] total 82 [2024-05-03 05:16:49,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207049783] [2024-05-03 05:16:49,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-03 05:16:49,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2024-05-03 05:16:49,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 05:16:49,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2024-05-03 05:16:49,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=501, Invalid=6131, Unknown=10, NotChecked=0, Total=6642 [2024-05-03 05:16:49,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:16:49,236 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 05:16:49,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 3.024390243902439) internal successors, (248), 82 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-03 05:16:49,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:16:49,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:16:49,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:16:49,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-05-03 05:16:49,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-05-03 05:16:49,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-05-03 05:16:49,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-05-03 05:16:49,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2024-05-03 05:16:49,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:16:49,237 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 05:17:13,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-03 05:17:37,928 WARN L539 Checker$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 05:17:41,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-05-03 05:17:43,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-05-03 05:17:45,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-05-03 05:17:47,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-05-03 05:17:50,471 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 [0] [2024-05-03 05:17:51,530 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 269 states. [2024-05-03 05:17:51,531 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 05:17:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 05:17:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-03 05:17:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-03 05:17:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-05-03 05:17:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-05-03 05:17:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-05-03 05:17:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-05-03 05:17:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-05-03 05:17:51,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2024-05-03 05:17:51,533 INFO L78 Accepts]: Start accepts. Automaton has currently 270 states, but on-demand construction may add more states Word has length 146 [2024-05-03 05:17:51,534 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 05:17:51,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-05-03 05:17:51,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:17:51,735 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-03 05:17:51,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 05:17:51,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1659898488, now seen corresponding path program 7 times [2024-05-03 05:17:51,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 05:17:51,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333075317] [2024-05-03 05:17:51,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 05:17:51,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 05:17:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:18:02,360 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-03 05:18:02,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 05:18:02,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333075317] [2024-05-03 05:18:02,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333075317] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-03 05:18:02,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242445364] [2024-05-03 05:18:02,361 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-05-03 05:18:02,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 05:18:02,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 05:18:02,362 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 05:18:02,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-05-03 05:18:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 05:18:02,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 41 conjunts are in the unsatisfiable core [2024-05-03 05:18:02,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 05:18:50,202 WARN L293 SmtUtils]: Spent 14.48s on a formula simplification. DAG size of input: 82 DAG size of output: 82 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-05-03 05:19:17,018 WARN L293 SmtUtils]: Spent 7.18s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-05-03 05:20:58,926 WARN L293 SmtUtils]: Spent 1.11m on a formula simplification that was a NOOP. DAG size: 101 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-05-03 05:22:48,941 WARN L293 SmtUtils]: Spent 48.03s on a formula simplification. DAG size of input: 101 DAG size of output: 98 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2024-05-03 05:26:18,305 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 05:26:18,306 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 05:26:18,306 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-05-03 05:26:19,322 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 05:26:19,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-05-03 05:26:19,510 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-05-03 05:26:19,537 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 137 [2024-05-03 05:26:19,540 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-05-03 05:26:19,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-05-03 05:26:19,540 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 147 with TraceHistMax 15,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while executing Executor. [2024-05-03 05:26:19,546 INFO L445 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1] [2024-05-03 05:26:19,547 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/3) [2024-05-03 05:26:19,548 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-03 05:26:19,548 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-03 05:26:19,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 05:26:19 BasicIcfg [2024-05-03 05:26:19,551 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-03 05:26:19,551 INFO L158 Benchmark]: Toolchain (without parser) took 855550.14ms. Allocated memory was 257.9MB in the beginning and 547.4MB in the end (delta: 289.4MB). Free memory was 186.4MB in the beginning and 302.3MB in the end (delta: -115.8MB). Peak memory consumption was 308.7MB. Max. memory is 8.0GB. [2024-05-03 05:26:19,551 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 158.3MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-03 05:26:19,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.59ms. Allocated memory is still 257.9MB. Free memory was 186.2MB in the beginning and 174.8MB in the end (delta: 11.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-05-03 05:26:19,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.03ms. Allocated memory is still 257.9MB. Free memory was 174.8MB in the beginning and 173.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-03 05:26:19,552 INFO L158 Benchmark]: Boogie Preprocessor took 33.64ms. Allocated memory is still 257.9MB. Free memory was 173.3MB in the beginning and 172.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-05-03 05:26:19,552 INFO L158 Benchmark]: RCFGBuilder took 464.79ms. Allocated memory is still 257.9MB. Free memory was 172.0MB in the beginning and 156.3MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-05-03 05:26:19,552 INFO L158 Benchmark]: TraceAbstraction took 854760.05ms. Allocated memory was 257.9MB in the beginning and 547.4MB in the end (delta: 289.4MB). Free memory was 155.0MB in the beginning and 302.3MB in the end (delta: -147.3MB). Peak memory consumption was 277.3MB. Max. memory is 8.0GB. [2024-05-03 05:26:19,554 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 158.3MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 225.59ms. Allocated memory is still 257.9MB. Free memory was 186.2MB in the beginning and 174.8MB in the end (delta: 11.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.03ms. Allocated memory is still 257.9MB. Free memory was 174.8MB in the beginning and 173.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.64ms. Allocated memory is still 257.9MB. Free memory was 173.3MB in the beginning and 172.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 464.79ms. Allocated memory is still 257.9MB. Free memory was 172.0MB in the beginning and 156.3MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 854760.05ms. Allocated memory was 257.9MB in the beginning and 547.4MB in the end (delta: 289.4MB). Free memory was 155.0MB in the beginning and 302.3MB in the end (delta: -147.3MB). Peak memory consumption was 277.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 172, independent: 112, independent conditional: 112, independent unconditional: 0, dependent: 60, dependent conditional: 60, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 114, independent: 112, independent conditional: 112, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 114, independent: 112, independent conditional: 112, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 124, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 12, dependent conditional: 10, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 124, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 114, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 114, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 19, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 124, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 114, unknown conditional: 0, unknown unconditional: 114] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 10, Maximal queried relation: 5, Independence queries for same thread: 58 - StatisticsResult: Reduction benchmarks 36.0ms Time before loop, 101.0ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 6, Reduction States: 106, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 35.2ms Time before loop, 59.7ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 6, Reduction States: 114, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 88.2ms Time before loop, 52.8ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 5, Reduction States: 118, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 29.7ms Time before loop, 66.8ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 5, Reduction States: 126, Duplicate States: 0, Protected Variables: 2 - StatisticsResult: Reduction benchmarks 155.9ms Time before loop, 64.3ms Time in loop, 0.2s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 123, Duplicate States: 4, Protected Variables: 2 - StatisticsResult: Reduction benchmarks 565.3ms Time before loop, 601.3ms Time in loop, 1.2s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 7, Reduction States: 181, Duplicate States: 4, Protected Variables: 7 - StatisticsResult: Reduction benchmarks 907.0ms Time before loop, 216.9ms Time in loop, 1.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 2, Reduction States: 139, Duplicate States: 0, Protected Variables: 7 - StatisticsResult: Reduction benchmarks 3271.3ms Time before loop, 615.8ms Time in loop, 3.9s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 2, Reduction States: 164, Duplicate States: 0, Protected Variables: 7 - StatisticsResult: Reduction benchmarks 6362.3ms Time before loop, 1348.9ms Time in loop, 7.7s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 2, Reduction States: 211, Duplicate States: 0, Protected Variables: 7 - StatisticsResult: Reduction benchmarks 46268.0ms Time before loop, 16025.1ms Time in loop, 62.3s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 2, Reduction States: 269, Duplicate States: 0, Protected Variables: 7 - StatisticsResult: Visitor Statistics States: 87, Transitions: 96, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 87, Transitions: 98, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 86, Transitions: 95, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 90, Transitions: 105, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 85, Transitions: 94, Traversal time: 0.2s - StatisticsResult: Visitor Statistics States: 113, Transitions: 136, Traversal time: 1.2s - StatisticsResult: Visitor Statistics States: 89, Transitions: 92, Traversal time: 1.1s - StatisticsResult: Visitor Statistics States: 101, Transitions: 104, Traversal time: 3.9s - StatisticsResult: Visitor Statistics States: 123, Transitions: 126, Traversal time: 7.7s - StatisticsResult: Visitor Statistics States: 150, Transitions: 153, Traversal time: 62.3s - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 34, RedundantProofs: 8, ProvenStates: 52, Times there's more than one choice: 39, Avg number of choices: 3.576923076923077 - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 147 with TraceHistMax 15,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 5 procedures, 96 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 854.6s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 76.9s, 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: 356, 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, 1.2s SatisfiabilityAnalysisTime, 266.6s InterpolantComputationTime, 1280 NumberOfCodeBlocks, 1280 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 1837 ConstructedInterpolants, 2 QuantifiedInterpolants, 15308 SizeOfPredicates, 89 NumberOfNonLiveVariables, 1207 ConjunctsInSsa, 152 ConjunctsInUnsatCore, 23 InterpolantComputations, 3 PerfectInterpolantSequences, 109/1299 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