/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/parallel-lamport.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-a4a1cd3-m [2024-05-30 16:11:05,479 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-30 16:11:05,513 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-30 16:11:05,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-30 16:11:05,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-30 16:11:05,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-30 16:11:05,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-30 16:11:05,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-30 16:11:05,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-30 16:11:05,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-30 16:11:05,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-30 16:11:05,532 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-30 16:11:05,532 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-30 16:11:05,532 INFO L153 SettingsManager]: * Use SBE=true [2024-05-30 16:11:05,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-30 16:11:05,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-30 16:11:05,533 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-30 16:11:05,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-30 16:11:05,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-30 16:11:05,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-30 16:11:05,534 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-30 16:11:05,535 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-30 16:11:05,535 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-30 16:11:05,535 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-30 16:11:05,535 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-30 16:11:05,535 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-30 16:11:05,536 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-30 16:11:05,536 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-30 16:11:05,536 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-30 16:11:05,536 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-30 16:11:05,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 16:11:05,537 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-30 16:11:05,537 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-30 16:11:05,537 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-30 16:11:05,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-30 16:11:05,538 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-30 16:11:05,538 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-30 16:11:05,538 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-30 16:11:05,539 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-30 16:11:05,539 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-30 16:11:05,539 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-30 16:11:05,539 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-30 16:11:05,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-30 16:11:05,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-30 16:11:05,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-30 16:11:05,792 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-30 16:11:05,793 INFO L274 PluginConnector]: CDTParser initialized [2024-05-30 16:11:05,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/parallel-lamport.wvr.c [2024-05-30 16:11:06,952 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-30 16:11:07,136 INFO L384 CDTParser]: Found 1 translation units. [2024-05-30 16:11:07,136 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-lamport.wvr.c [2024-05-30 16:11:07,142 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/96b89f0bb/9e883e01a75c408da17c4511c710b529/FLAG39d712232 [2024-05-30 16:11:07,152 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/96b89f0bb/9e883e01a75c408da17c4511c710b529 [2024-05-30 16:11:07,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-30 16:11:07,154 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-30 16:11:07,155 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-30 16:11:07,155 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-30 16:11:07,161 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-30 16:11:07,162 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 04:11:07" (1/1) ... [2024-05-30 16:11:07,163 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46770502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07, skipping insertion in model container [2024-05-30 16:11:07,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 04:11:07" (1/1) ... [2024-05-30 16:11:07,192 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-30 16:11:07,320 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/parallel-lamport.wvr.c[4210,4223] [2024-05-30 16:11:07,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 16:11:07,347 INFO L202 MainTranslator]: Completed pre-run [2024-05-30 16:11:07,365 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/parallel-lamport.wvr.c[4210,4223] [2024-05-30 16:11:07,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 16:11:07,379 INFO L206 MainTranslator]: Completed translation [2024-05-30 16:11:07,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07 WrapperNode [2024-05-30 16:11:07,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-30 16:11:07,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-30 16:11:07,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-30 16:11:07,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-30 16:11:07,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07" (1/1) ... [2024-05-30 16:11:07,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07" (1/1) ... [2024-05-30 16:11:07,412 INFO L138 Inliner]: procedures = 25, calls = 89, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 243 [2024-05-30 16:11:07,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-30 16:11:07,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-30 16:11:07,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-30 16:11:07,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-30 16:11:07,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07" (1/1) ... [2024-05-30 16:11:07,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07" (1/1) ... [2024-05-30 16:11:07,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07" (1/1) ... [2024-05-30 16:11:07,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07" (1/1) ... [2024-05-30 16:11:07,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07" (1/1) ... [2024-05-30 16:11:07,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07" (1/1) ... [2024-05-30 16:11:07,451 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07" (1/1) ... [2024-05-30 16:11:07,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07" (1/1) ... [2024-05-30 16:11:07,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-30 16:11:07,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-30 16:11:07,461 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-30 16:11:07,463 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-30 16:11:07,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07" (1/1) ... [2024-05-30 16:11:07,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 16:11:07,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:11:07,510 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) [2024-05-30 16:11:07,533 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 [2024-05-30 16:11:07,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-30 16:11:07,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-30 16:11:07,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-30 16:11:07,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-30 16:11:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-30 16:11:07,576 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-30 16:11:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-30 16:11:07,580 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-30 16:11:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-05-30 16:11:07,581 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-05-30 16:11:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-30 16:11:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-30 16:11:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-30 16:11:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-30 16:11:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-30 16:11:07,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-30 16:11:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-30 16:11:07,583 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-30 16:11:07,693 INFO L241 CfgBuilder]: Building ICFG [2024-05-30 16:11:07,695 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-30 16:11:07,968 INFO L282 CfgBuilder]: Performing block encoding [2024-05-30 16:11:08,026 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-30 16:11:08,027 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2024-05-30 16:11:08,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 04:11:08 BoogieIcfgContainer [2024-05-30 16:11:08,027 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-30 16:11:08,029 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-30 16:11:08,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-30 16:11:08,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-30 16:11:08,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.05 04:11:07" (1/3) ... [2024-05-30 16:11:08,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222848cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 04:11:08, skipping insertion in model container [2024-05-30 16:11:08,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 04:11:07" (2/3) ... [2024-05-30 16:11:08,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222848cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 04:11:08, skipping insertion in model container [2024-05-30 16:11:08,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 04:11:08" (3/3) ... [2024-05-30 16:11:08,033 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-lamport.wvr.c [2024-05-30 16:11:08,040 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-30 16:11:08,047 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-30 16:11:08,047 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-30 16:11:08,047 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-30 16:11:08,087 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-05-30 16:11:08,127 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 16:11:08,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 16:11:08,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:11:08,133 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) [2024-05-30 16:11:08,134 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 [2024-05-30 16:11:08,164 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 16:11:08,170 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 16:11:08,175 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;@5a64627b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 16:11:08,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 16:11:08,180 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:11:08,249 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 242 states. [2024-05-30 16:11:08,249 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 16:11:08,251 INFO L78 Accepts]: Start accepts. Automaton has currently 243 states, but on-demand construction may add more states Word has length 163 [2024-05-30 16:11:08,255 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:11:08,255 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:11:08,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:11:08,260 INFO L85 PathProgramCache]: Analyzing trace with hash -265890769, now seen corresponding path program 1 times [2024-05-30 16:11:08,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:11:08,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414873867] [2024-05-30 16:11:08,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:11:08,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:11:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:11:08,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 16:11:08,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:11:08,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414873867] [2024-05-30 16:11:08,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414873867] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:11:08,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 16:11:08,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-30 16:11:08,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969540066] [2024-05-30 16:11:08,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:11:08,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-30 16:11:08,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:11:08,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-30 16:11:08,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-30 16:11:08,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:08,581 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:11:08,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 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) [2024-05-30 16:11:08,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:08,583 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:11:08,642 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 248 states. [2024-05-30 16:11:08,643 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 16:11:08,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:08,643 INFO L78 Accepts]: Start accepts. Automaton has currently 249 states, but on-demand construction may add more states Word has length 158 [2024-05-30 16:11:08,644 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:11:08,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-30 16:11:08,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:11:08,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:11:08,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1848902475, now seen corresponding path program 1 times [2024-05-30 16:11:08,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:11:08,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815752104] [2024-05-30 16:11:08,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:11:08,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:11:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:11:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 16:11:08,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:11:08,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815752104] [2024-05-30 16:11:08,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815752104] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:11:08,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 16:11:08,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-30 16:11:08,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439459898] [2024-05-30 16:11:08,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:11:08,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-30 16:11:08,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:11:08,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-30 16:11:08,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-05-30 16:11:08,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:08,946 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:11:08,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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) [2024-05-30 16:11:08,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:08,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:08,947 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:11:09,082 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 256 states. [2024-05-30 16:11:09,082 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 16:11:09,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:09,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:09,083 INFO L78 Accepts]: Start accepts. Automaton has currently 257 states, but on-demand construction may add more states Word has length 166 [2024-05-30 16:11:09,085 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:11:09,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-30 16:11:09,086 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:11:09,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:11:09,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1858458715, now seen corresponding path program 1 times [2024-05-30 16:11:09,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:11:09,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913466283] [2024-05-30 16:11:09,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:11:09,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:11:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:11:10,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 16:11:10,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:11:10,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913466283] [2024-05-30 16:11:10,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913466283] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:11:10,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32874311] [2024-05-30 16:11:10,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:11:10,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:11:10,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:11:10,130 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) [2024-05-30 16:11:10,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-30 16:11:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:11:10,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 33 conjunts are in the unsatisfiable core [2024-05-30 16:11:10,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:11:11,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 16:11:11,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 16:11:11,267 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 16:11:11,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2024-05-30 16:11:12,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 16:11:12,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32874311] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 16:11:12,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 16:11:12,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20, 20] total 50 [2024-05-30 16:11:12,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215006237] [2024-05-30 16:11:12,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 16:11:12,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-05-30 16:11:12,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:11:12,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-05-30 16:11:12,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=2148, Unknown=0, NotChecked=0, Total=2450 [2024-05-30 16:11:12,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:12,251 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:11:12,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 7.12) internal successors, (356), 50 states have internal predecessors, (356), 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) [2024-05-30 16:11:12,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:12,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:12,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:12,255 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:11:12,965 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 265 states. [2024-05-30 16:11:12,965 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 16:11:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:12,966 INFO L78 Accepts]: Start accepts. Automaton has currently 266 states, but on-demand construction may add more states Word has length 174 [2024-05-30 16:11:12,967 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:11:12,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-05-30 16:11:13,167 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 [2024-05-30 16:11:13,167 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:11:13,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:11:13,168 INFO L85 PathProgramCache]: Analyzing trace with hash 531061247, now seen corresponding path program 2 times [2024-05-30 16:11:13,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:11:13,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708543779] [2024-05-30 16:11:13,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:11:13,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:11:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:11:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 16:11:14,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:11:14,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708543779] [2024-05-30 16:11:14,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708543779] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:11:14,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592729057] [2024-05-30 16:11:14,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-30 16:11:14,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:11:14,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:11:14,674 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) [2024-05-30 16:11:14,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-30 16:11:14,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-05-30 16:11:14,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 16:11:14,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 24 conjunts are in the unsatisfiable core [2024-05-30 16:11:14,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:11:15,034 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 16:11:15,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-05-30 16:11:15,042 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-30 16:11:15,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-05-30 16:11:15,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592729057] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:11:15,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-05-30 16:11:15,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [28] total 35 [2024-05-30 16:11:15,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579186580] [2024-05-30 16:11:15,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:11:15,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-05-30 16:11:15,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:11:15,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-05-30 16:11:15,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1097, Unknown=0, NotChecked=0, Total=1190 [2024-05-30 16:11:15,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:15,044 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:11:15,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.833333333333334) internal successors, (166), 12 states have internal predecessors, (166), 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) [2024-05-30 16:11:15,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:15,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:15,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:15,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:15,045 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:11:15,885 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 938 states. [2024-05-30 16:11:15,886 INFO L212 cStratifiedReduction]: Copied states 32 times. [2024-05-30 16:11:15,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:15,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:15,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:15,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:11:15,886 INFO L78 Accepts]: Start accepts. Automaton has currently 946 states, but on-demand construction may add more states Word has length 174 [2024-05-30 16:11:15,887 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:11:15,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-05-30 16:11:16,092 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 [2024-05-30 16:11:16,092 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:11:16,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:11:16,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1161543639, now seen corresponding path program 3 times [2024-05-30 16:11:16,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:11:16,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273578396] [2024-05-30 16:11:16,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:11:16,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:11:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:11:16,204 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-30 16:11:16,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:11:16,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273578396] [2024-05-30 16:11:16,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273578396] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:11:16,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 16:11:16,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-05-30 16:11:16,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485535238] [2024-05-30 16:11:16,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:11:16,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-30 16:11:16,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:11:16,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-30 16:11:16,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-05-30 16:11:16,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:16,206 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:11:16,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 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) [2024-05-30 16:11:16,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:16,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:16,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:16,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:11:16,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:16,206 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:11:17,143 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 2195 states. [2024-05-30 16:11:17,143 INFO L212 cStratifiedReduction]: Copied states 1054 times. [2024-05-30 16:11:17,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:17,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:17,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:17,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:11:17,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 16:11:17,144 INFO L78 Accepts]: Start accepts. Automaton has currently 1228 states, but on-demand construction may add more states Word has length 174 [2024-05-30 16:11:17,145 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:11:17,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-30 16:11:17,145 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:11:17,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:11:17,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1396515961, now seen corresponding path program 4 times [2024-05-30 16:11:17,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:11:17,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415020588] [2024-05-30 16:11:17,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:11:17,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:11:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:11:17,256 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-30 16:11:17,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:11:17,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415020588] [2024-05-30 16:11:17,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415020588] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:11:17,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 16:11:17,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-30 16:11:17,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501687507] [2024-05-30 16:11:17,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:11:17,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-30 16:11:17,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:11:17,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-30 16:11:17,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-30 16:11:17,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:17,258 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:11:17,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2024-05-30 16:11:17,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:17,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:17,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:17,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:11:17,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 16:11:17,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:17,259 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:11:17,906 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1802 states. [2024-05-30 16:11:17,907 INFO L212 cStratifiedReduction]: Copied states 632 times. [2024-05-30 16:11:17,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:17,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:17,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:17,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:11:17,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 16:11:17,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:17,908 INFO L78 Accepts]: Start accepts. Automaton has currently 1336 states, but on-demand construction may add more states Word has length 174 [2024-05-30 16:11:17,908 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:11:17,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-30 16:11:17,908 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:11:17,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:11:17,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1311403453, now seen corresponding path program 5 times [2024-05-30 16:11:17,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:11:17,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282334228] [2024-05-30 16:11:17,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:11:17,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:11:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:11:17,969 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-30 16:11:17,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:11:17,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282334228] [2024-05-30 16:11:17,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282334228] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:11:17,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 16:11:17,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-30 16:11:17,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140961836] [2024-05-30 16:11:17,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:11:17,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-30 16:11:17,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:11:17,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-30 16:11:17,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-30 16:11:17,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:17,971 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:11:17,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2024-05-30 16:11:17,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:17,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:17,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:17,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:11:17,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 16:11:17,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:17,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:17,972 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:11:20,292 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 4536 states. [2024-05-30 16:11:20,293 INFO L212 cStratifiedReduction]: Copied states 670 times. [2024-05-30 16:11:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:11:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 16:11:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:20,293 INFO L78 Accepts]: Start accepts. Automaton has currently 5010 states, but on-demand construction may add more states Word has length 174 [2024-05-30 16:11:20,294 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:11:20,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-05-30 16:11:20,295 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:11:20,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:11:20,295 INFO L85 PathProgramCache]: Analyzing trace with hash 176215671, now seen corresponding path program 6 times [2024-05-30 16:11:20,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:11:20,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005807791] [2024-05-30 16:11:20,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:11:20,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:11:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:11:21,479 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 16:11:21,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:11:21,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005807791] [2024-05-30 16:11:21,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005807791] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:11:21,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493952757] [2024-05-30 16:11:21,479 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-05-30 16:11:21,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:11:21,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:11:21,482 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) [2024-05-30 16:11:21,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-30 16:11:21,579 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-05-30 16:11:21,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 16:11:21,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 38 conjunts are in the unsatisfiable core [2024-05-30 16:11:21,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:11:21,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-05-30 16:11:21,657 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-05-30 16:11:21,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-05-30 16:11:21,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-05-30 16:11:22,131 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 16:11:22,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-05-30 16:11:22,140 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-05-30 16:11:22,140 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-05-30 16:11:22,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493952757] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:11:22,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-05-30 16:11:22,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [29] total 44 [2024-05-30 16:11:22,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432832162] [2024-05-30 16:11:22,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:11:22,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-05-30 16:11:22,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:11:22,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-05-30 16:11:22,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1757, Unknown=0, NotChecked=0, Total=1892 [2024-05-30 16:11:22,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:22,142 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:11:22,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.3) internal successors, (166), 20 states have internal predecessors, (166), 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) [2024-05-30 16:11:22,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:22,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:22,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:22,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:11:22,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 16:11:22,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:22,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:22,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:22,143 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:11:26,072 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 6594 states. [2024-05-30 16:11:26,072 INFO L212 cStratifiedReduction]: Copied states 953 times. [2024-05-30 16:11:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:11:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 16:11:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:26,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-05-30 16:11:26,073 INFO L78 Accepts]: Start accepts. Automaton has currently 6946 states, but on-demand construction may add more states Word has length 174 [2024-05-30 16:11:26,074 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:11:26,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-05-30 16:11:26,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:11:26,279 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:11:26,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:11:26,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1424090249, now seen corresponding path program 7 times [2024-05-30 16:11:26,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:11:26,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716948050] [2024-05-30 16:11:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:11:26,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:11:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:11:27,480 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 16:11:27,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:11:27,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716948050] [2024-05-30 16:11:27,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716948050] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:11:27,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722034149] [2024-05-30 16:11:27,481 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-05-30 16:11:27,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:11:27,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:11:27,483 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) [2024-05-30 16:11:27,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-30 16:11:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:11:27,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 63 conjunts are in the unsatisfiable core [2024-05-30 16:11:27,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:11:27,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-05-30 16:11:27,811 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-05-30 16:11:27,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-05-30 16:11:29,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-05-30 16:11:29,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-05-30 16:11:29,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-05-30 16:11:29,754 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 16:11:29,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 32 [2024-05-30 16:11:29,766 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 16:11:29,767 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 16:11:30,520 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 16:11:30,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 644 treesize of output 564 [2024-05-30 16:11:30,557 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 16:11:30,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 108 [2024-05-30 16:11:30,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 16:11:30,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 125 treesize of output 105 [2024-05-30 16:11:33,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-05-30 16:11:33,376 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 16:11:33,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722034149] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 16:11:33,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 16:11:33,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 35, 35] total 90 [2024-05-30 16:11:33,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137094292] [2024-05-30 16:11:33,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 16:11:33,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2024-05-30 16:11:33,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:11:33,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2024-05-30 16:11:33,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=493, Invalid=7514, Unknown=3, NotChecked=0, Total=8010 [2024-05-30 16:11:33,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:33,382 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:11:33,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 5.0777777777777775) internal successors, (457), 90 states have internal predecessors, (457), 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) [2024-05-30 16:11:33,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:33,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:33,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:33,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:11:33,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 16:11:33,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:33,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:33,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-05-30 16:11:33,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:33,383 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:11:41,186 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 8114 states. [2024-05-30 16:11:41,186 INFO L212 cStratifiedReduction]: Copied states 951 times. [2024-05-30 16:11:41,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:41,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:41,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:41,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:11:41,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 16:11:41,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:41,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:41,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-05-30 16:11:41,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-05-30 16:11:41,187 INFO L78 Accepts]: Start accepts. Automaton has currently 8475 states, but on-demand construction may add more states Word has length 182 [2024-05-30 16:11:41,188 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 16:11:41,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-30 16:11:41,392 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,SelfDestructingSolverStorable8 [2024-05-30 16:11:41,392 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 16:11:41,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 16:11:41,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1361871603, now seen corresponding path program 8 times [2024-05-30 16:11:41,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 16:11:41,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081470162] [2024-05-30 16:11:41,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 16:11:41,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 16:11:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 16:11:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 16:11:43,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 16:11:43,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081470162] [2024-05-30 16:11:43,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081470162] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 16:11:43,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006644491] [2024-05-30 16:11:43,472 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-30 16:11:43,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 16:11:43,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:11:43,474 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) [2024-05-30 16:11:43,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-30 16:11:43,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-05-30 16:11:43,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 16:11:43,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 41 conjunts are in the unsatisfiable core [2024-05-30 16:11:43,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 16:11:43,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-05-30 16:11:43,716 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-05-30 16:11:43,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-05-30 16:11:44,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-05-30 16:11:44,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-05-30 16:11:44,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 21 [2024-05-30 16:11:44,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 16:11:44,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-05-30 16:11:44,371 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-05-30 16:11:44,371 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-05-30 16:11:44,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006644491] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 16:11:44,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-05-30 16:11:44,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [34] total 50 [2024-05-30 16:11:44,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97794933] [2024-05-30 16:11:44,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 16:11:44,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-05-30 16:11:44,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 16:11:44,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-05-30 16:11:44,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=2314, Unknown=0, NotChecked=0, Total=2450 [2024-05-30 16:11:44,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:44,373 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 16:11:44,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.545454545454546) internal successors, (166), 22 states have internal predecessors, (166), 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) [2024-05-30 16:11:44,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:44,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-05-30 16:11:44,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-05-30 16:11:44,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:11:44,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 16:11:44,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:44,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:11:44,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-05-30 16:11:44,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-05-30 16:11:44,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:11:44,374 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:11:48,983 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:11:48,983 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:11:48,984 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~arr~0#1.base, ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_#res#1.base, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#res#1.offset, ~f~0.base, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~tmp1~0, ~tmp2~0, ~e1~0, ~e2~0, ~i1~0, ~i2~0, ~n1~0, ~n2~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ~i~0, ~j~0, ~n~0, #valid, ULTIMATE.start_main_#t~ret12#1.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ULTIMATE.start_main_~#t2~0#1.base, ULTIMATE.start_main_~#t3~0#1.base, #StackHeapBarrier, ULTIMATE.start_create_fresh_int_array_#t~post23#1, ULTIMATE.start_create_fresh_int_array_#t~malloc22#1.base, ULTIMATE.start_create_fresh_int_array_#t~malloc22#1.offset, #memory_int, ULTIMATE.start_main_#t~ret12#1.offset, ~f~0.offset, ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset] [2024-05-30 16:11:50,919 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:11:50,920 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_create_fresh_int_array_~arr~0#1.base, ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_#res#1.base, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#res#1.offset, ~f~0.base, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~tmp1~0, ~tmp2~0, ~e1~0, ~e2~0, ~i1~0, ~i2~0, ~n1~0, ~n2~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ~i~0, ~j~0, ~n~0, #valid, ULTIMATE.start_main_#t~ret12#1.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ULTIMATE.start_main_~#t2~0#1.base, ULTIMATE.start_main_~#t3~0#1.base, #StackHeapBarrier, ULTIMATE.start_create_fresh_int_array_#t~post23#1, ULTIMATE.start_create_fresh_int_array_#t~malloc22#1.base, ULTIMATE.start_create_fresh_int_array_#t~malloc22#1.offset, #memory_int, ULTIMATE.start_main_#t~ret12#1.offset, ~f~0.offset, ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset] [2024-05-30 16:11:50,920 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_create_fresh_int_array_~arr~0#1.base, ULTIMATE.start_create_fresh_int_array_~i~1#1, ULTIMATE.start_create_fresh_int_array_#res#1.base, ULTIMATE.start_create_fresh_int_array_~size#1, ULTIMATE.start_create_fresh_int_array_#res#1.offset, ~f~0.base, ULTIMATE.start_create_fresh_int_array_#in~size#1, ~tmp1~0, ~tmp2~0, ~e1~0, ~e2~0, ~i1~0, ~i2~0, ~n1~0, ~n2~0, ULTIMATE.start_assume_abort_if_not_~cond#1, ~i~0, ~j~0, ~n~0, #valid, ULTIMATE.start_main_#t~ret12#1.base, ULTIMATE.start_assume_abort_if_not_#in~cond#1, ULTIMATE.start_main_~#t2~0#1.base, ULTIMATE.start_main_~#t3~0#1.base, #StackHeapBarrier, ULTIMATE.start_create_fresh_int_array_#t~post23#1, ULTIMATE.start_create_fresh_int_array_#t~malloc22#1.base, ULTIMATE.start_create_fresh_int_array_#t~malloc22#1.offset, #memory_int, ULTIMATE.start_main_#t~ret12#1.offset, ~f~0.offset, ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset] [2024-05-30 16:12:10,428 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 30839 states. [2024-05-30 16:12:10,429 INFO L212 cStratifiedReduction]: Copied states 7108 times. [2024-05-30 16:12:10,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 16:12:10,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 16:12:10,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-05-30 16:12:10,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-30 16:12:10,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 16:12:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:12:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 16:12:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-05-30 16:12:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2024-05-30 16:12:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-05-30 16:12:10,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-05-30 16:12:10,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-05-30 16:12:10,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-05-30 16:12:10,746 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1, 1] [2024-05-30 16:12:10,747 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/4) [2024-05-30 16:12:10,757 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 16:12:10,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 16:12:10,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:12:10,758 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-30 16:12:10,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-05-30 16:12:10,782 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 16:12:10,782 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2024-05-30 16:12:10,782 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;@5a64627b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 16:12:10,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 16:12:10,783 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:12:10,831 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:12:10,831 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:12:10,831 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:12:10,832 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 187 states. [2024-05-30 16:12:10,832 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 16:12:10,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-05-30 16:12:10,832 INFO L445 BasicCegarLoop]: Path program histogram: [] [2024-05-30 16:12:10,833 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2024-05-30 16:12:10,836 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 16:12:10,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 16:12:10,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:12:10,839 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-30 16:12:10,843 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 16:12:10,843 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2024-05-30 16:12:10,844 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;@5a64627b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 16:12:10,844 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 16:12:10,844 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:12:10,856 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:12:10,856 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:12:10,856 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:12:10,857 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 109 states. [2024-05-30 16:12:10,857 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 16:12:10,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-05-30 16:12:10,858 INFO L445 BasicCegarLoop]: Path program histogram: [] [2024-05-30 16:12:10,858 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/4) [2024-05-30 16:12:10,861 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 16:12:10,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 16:12:10,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 16:12:10,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2024-05-30 16:12:10,863 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-30 16:12:10,935 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 16:12:10,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2024-05-30 16:12:10,935 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;@5a64627b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 16:12:10,936 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 16:12:10,936 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 16:12:10,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2024-05-30 16:12:11,572 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 16:12:11,572 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 16:12:11,572 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 16:12:11,573 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1519 states. [2024-05-30 16:12:11,573 INFO L212 cStratifiedReduction]: Copied states 318 times. [2024-05-30 16:12:11,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-05-30 16:12:11,574 INFO L445 BasicCegarLoop]: Path program histogram: [] [2024-05-30 16:12:11,574 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (4/4) [2024-05-30 16:12:11,575 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-30 16:12:11,575 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-30 16:12:11,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.05 04:12:11 BasicIcfg [2024-05-30 16:12:11,578 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-30 16:12:11,578 INFO L158 Benchmark]: Toolchain (without parser) took 64423.65ms. Allocated memory was 240.1MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 169.6MB in the beginning and 3.1GB in the end (delta: -3.0GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2024-05-30 16:12:11,578 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory is still 160.6MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-30 16:12:11,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.25ms. Allocated memory is still 240.1MB. Free memory was 169.5MB in the beginning and 156.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-05-30 16:12:11,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.58ms. Allocated memory is still 240.1MB. Free memory was 156.7MB in the beginning and 154.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-30 16:12:11,578 INFO L158 Benchmark]: Boogie Preprocessor took 41.00ms. Allocated memory is still 240.1MB. Free memory was 154.5MB in the beginning and 152.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-30 16:12:11,579 INFO L158 Benchmark]: RCFGBuilder took 566.61ms. Allocated memory is still 240.1MB. Free memory was 152.5MB in the beginning and 183.0MB in the end (delta: -30.5MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. [2024-05-30 16:12:11,579 INFO L158 Benchmark]: TraceAbstraction took 63549.04ms. Allocated memory was 240.1MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 182.0MB in the beginning and 3.1GB in the end (delta: -3.0GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2024-05-30 16:12:11,580 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory is still 160.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 224.25ms. Allocated memory is still 240.1MB. Free memory was 169.5MB in the beginning and 156.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.58ms. Allocated memory is still 240.1MB. Free memory was 156.7MB in the beginning and 154.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.00ms. Allocated memory is still 240.1MB. Free memory was 154.5MB in the beginning and 152.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 566.61ms. Allocated memory is still 240.1MB. Free memory was 152.5MB in the beginning and 183.0MB in the end (delta: -30.5MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. * TraceAbstraction took 63549.04ms. Allocated memory was 240.1MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 182.0MB in the beginning and 3.1GB in the end (delta: -3.0GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 113065, independent: 112503, independent conditional: 112503, independent unconditional: 0, dependent: 562, dependent conditional: 562, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 112993, independent: 112503, independent conditional: 112503, independent unconditional: 0, dependent: 490, dependent conditional: 490, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 112993, independent: 112503, independent conditional: 112503, independent unconditional: 0, dependent: 490, dependent conditional: 490, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 117519, independent: 112503, independent conditional: 0, independent unconditional: 112503, dependent: 5016, dependent conditional: 4526, dependent unconditional: 490, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 117519, independent: 112503, independent conditional: 0, independent unconditional: 112503, dependent: 5016, dependent conditional: 0, dependent unconditional: 5016, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 117519, independent: 112503, independent conditional: 0, independent unconditional: 112503, dependent: 5016, dependent conditional: 0, dependent unconditional: 5016, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 112993, independent: 112503, independent conditional: 0, independent unconditional: 112503, dependent: 490, dependent conditional: 0, dependent unconditional: 490, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 112993, independent: 112226, independent conditional: 0, independent unconditional: 112226, dependent: 767, dependent conditional: 0, dependent unconditional: 767, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 767, independent: 277, independent conditional: 0, independent unconditional: 277, dependent: 490, dependent conditional: 0, dependent unconditional: 490, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 767, independent: 277, independent conditional: 0, independent unconditional: 277, dependent: 490, dependent conditional: 0, dependent unconditional: 490, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 767, independent: 277, independent conditional: 0, independent unconditional: 277, dependent: 490, dependent conditional: 0, dependent unconditional: 490, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 632, independent: 277, independent conditional: 0, independent unconditional: 277, dependent: 355, dependent conditional: 0, dependent unconditional: 355, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 117519, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4526, dependent conditional: 0, dependent unconditional: 4526, unknown: 112993, unknown conditional: 0, unknown unconditional: 112993] , Statistics on independence cache: Total cache size (in pairs): 112993, Positive cache size: 112503, Positive conditional cache size: 0, Positive unconditional cache size: 112503, Negative cache size: 490, Negative conditional cache size: 0, Negative unconditional cache size: 490, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4526, Maximal queried relation: 10, Independence queries for same thread: 72 - StatisticsResult: Reduction benchmarks 22.0ms Time before loop, 46.7ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 1, Reduction States: 242, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 23.0ms Time before loop, 36.4ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 1, Reduction States: 248, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 65.7ms Time before loop, 68.4ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 1, Reduction States: 256, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 503.1ms Time before loop, 206.6ms Time in loop, 0.7s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 1, Reduction States: 265, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 40.9ms Time before loop, 799.2ms Time in loop, 0.8s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 1, Reduction States: 938, Duplicate States: 32, Protected Variables: 9 - StatisticsResult: Reduction benchmarks 11.8ms Time before loop, 924.6ms Time in loop, 0.9s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 1, Reduction States: 2195, Duplicate States: 1054, Protected Variables: 13 - StatisticsResult: Reduction benchmarks 5.6ms Time before loop, 642.1ms Time in loop, 0.6s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 1, Reduction States: 1802, Duplicate States: 632, Protected Variables: 14 - StatisticsResult: Reduction benchmarks 3.1ms Time before loop, 2317.3ms Time in loop, 2.3s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 1, Reduction States: 4536, Duplicate States: 670, Protected Variables: 15 - StatisticsResult: Reduction benchmarks 102.6ms Time before loop, 3825.5ms Time in loop, 3.9s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 1, Reduction States: 6594, Duplicate States: 953, Protected Variables: 21 - StatisticsResult: Reduction benchmarks 1741.6ms Time before loop, 6060.7ms Time in loop, 7.8s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 1, Reduction States: 8114, Duplicate States: 951, Protected Variables: 32 - StatisticsResult: Reduction benchmarks 166.1ms Time before loop, 25888.3ms Time in loop, 26.1s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 2, Reduction States: 30839, Duplicate States: 7108, Protected Variables: 32 - StatisticsResult: Visitor Statistics States: 171, Transitions: 171, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 171, Transitions: 176, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 178, Transitions: 183, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 186, Transitions: 191, Traversal time: 0.7s - StatisticsResult: Visitor Statistics States: 866, Transitions: 907, Traversal time: 0.8s - StatisticsResult: Visitor Statistics States: 2116, Transitions: 2227, Traversal time: 0.9s - StatisticsResult: Visitor Statistics States: 1723, Transitions: 1828, Traversal time: 0.6s - StatisticsResult: Visitor Statistics States: 4389, Transitions: 4556, Traversal time: 2.3s - StatisticsResult: Visitor Statistics States: 6369, Transitions: 6911, Traversal time: 3.9s - StatisticsResult: Visitor Statistics States: 7893, Transitions: 8616, Traversal time: 7.8s - StatisticsResult: Visitor Statistics States: 29793, Transitions: 32873, Traversal time: 26.1s - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 22, RedundantProofs: 1, ProvenStates: 1707, Times there's more than one choice: 114, Avg number of choices: 1.3778558875219684 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 67, independent: 60, independent conditional: 60, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60, independent: 60, independent conditional: 60, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 60, independent: 60, independent conditional: 60, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 60, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 60, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 60, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 60, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 60, unknown conditional: 0, unknown unconditional: 60] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 7 - StatisticsResult: Reduction benchmarks 2.0ms Time before loop, 46.9ms Time in loop, 0.0s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 1, Reduction States: 187, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Visitor Statistics States: 188, Transitions: 193, Traversal time: 0.0s - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 0, RedundantProofs: 0, ProvenStates: 0, Times there's more than one choice: 0, Avg number of choices: NaN - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 7 - StatisticsResult: Reduction benchmarks 1.7ms Time before loop, 10.9ms Time in loop, 0.0s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 1, Reduction States: 109, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Visitor Statistics States: 110, Transitions: 115, Traversal time: 0.0s - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 0, RedundantProofs: 0, ProvenStates: 0, Times there's more than one choice: 0, Avg number of choices: NaN - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2671, independent: 2592, independent conditional: 2592, independent unconditional: 0, dependent: 79, dependent conditional: 79, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2664, independent: 2592, independent conditional: 2592, independent unconditional: 0, dependent: 72, dependent conditional: 72, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2664, independent: 2592, independent conditional: 2592, independent unconditional: 0, dependent: 72, dependent conditional: 72, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2664, independent: 2592, independent conditional: 0, independent unconditional: 2592, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2664, independent: 2592, independent conditional: 0, independent unconditional: 2592, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2664, independent: 2592, independent conditional: 0, independent unconditional: 2592, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2664, independent: 2592, independent conditional: 0, independent unconditional: 2592, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2664, independent: 2592, independent conditional: 0, independent unconditional: 2592, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 72, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 72, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 72, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2664, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2664, unknown conditional: 0, unknown unconditional: 2664] , Statistics on independence cache: Total cache size (in pairs): 2664, Positive cache size: 2592, Positive conditional cache size: 0, Positive unconditional cache size: 2592, Negative cache size: 72, Negative conditional cache size: 0, Negative unconditional cache size: 72, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 7 - StatisticsResult: Reduction benchmarks 1.7ms Time before loop, 635.5ms Time in loop, 0.6s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 1, Reduction States: 1519, Duplicate States: 318, Protected Variables: 0 - StatisticsResult: Visitor Statistics States: 1520, Transitions: 1891, Traversal time: 0.6s - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 0, RedundantProofs: 0, ProvenStates: 0, Times there's more than one choice: 0, Avg number of choices: NaN - PositiveResult [Line: 161]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 7 procedures, 220 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 62.6s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 43.5s, 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: 268, 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, 0.5s SatisfiabilityAnalysisTime, 16.6s InterpolantComputationTime, 2583 NumberOfCodeBlocks, 2527 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2906 ConstructedInterpolants, 16 QuantifiedInterpolants, 27185 SizeOfPredicates, 115 NumberOfNonLiveVariables, 1757 ConjunctsInSsa, 199 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 77/157 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 7 procedures, 220 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, 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: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 7 procedures, 220 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, 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: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 7 procedures, 220 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.6s, 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: 0, 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-05-30 16:12:11,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Forceful destruction successful, exit code 0 [2024-05-30 16:12:11,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Ended with exit code 0 [2024-05-30 16:12:12,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Forceful destruction successful, exit code 0 [2024-05-30 16:12:12,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-05-30 16:12:12,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...