/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 07:00:47,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 07:00:47,135 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2023-09-07 07:00:47,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 07:00:47,138 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 07:00:47,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 07:00:47,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 07:00:47,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 07:00:47,155 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 07:00:47,156 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 07:00:47,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 07:00:47,156 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 07:00:47,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 07:00:47,157 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 07:00:47,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 07:00:47,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 07:00:47,157 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 07:00:47,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 07:00:47,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 07:00:47,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 07:00:47,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 07:00:47,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 07:00:47,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 07:00:47,159 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 07:00:47,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 07:00:47,159 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 07:00:47,160 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 07:00:47,160 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 07:00:47,160 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 07:00:47,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 07:00:47,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 07:00:47,161 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 07:00:47,161 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 07:00:47,161 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2023-09-07 07:00:47,161 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 07:00:47,162 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 07:00:47,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 07:00:47,162 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 07:00:47,162 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 07:00:47,163 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 07:00:47,163 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2023-09-07 07:00:47,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-09-07 07:00:47,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 07:00:47,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 07:00:47,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 07:00:47,364 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 07:00:47,364 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 07:00:47,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c [2023-09-07 07:00:48,337 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 07:00:48,518 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 07:00:48,518 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c [2023-09-07 07:00:48,525 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9bc02db2/d68b0af798204842918aa851c9cb4b0f/FLAGa47a55820 [2023-09-07 07:00:48,539 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9bc02db2/d68b0af798204842918aa851c9cb4b0f [2023-09-07 07:00:48,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 07:00:48,544 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 07:00:48,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 07:00:48,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 07:00:48,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 07:00:48,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 07:00:48" (1/1) ... [2023-09-07 07:00:48,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e536db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48, skipping insertion in model container [2023-09-07 07:00:48,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 07:00:48" (1/1) ... [2023-09-07 07:00:48,580 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 07:00:48,702 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c[4218,4231] [2023-09-07 07:00:48,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 07:00:48,715 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 07:00:48,733 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c[4218,4231] [2023-09-07 07:00:48,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 07:00:48,741 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 07:00:48,742 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 07:00:48,746 INFO L206 MainTranslator]: Completed translation [2023-09-07 07:00:48,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48 WrapperNode [2023-09-07 07:00:48,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 07:00:48,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 07:00:48,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 07:00:48,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 07:00:48,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48" (1/1) ... [2023-09-07 07:00:48,758 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48" (1/1) ... [2023-09-07 07:00:48,784 INFO L138 Inliner]: procedures = 27, calls = 80, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 317 [2023-09-07 07:00:48,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 07:00:48,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 07:00:48,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 07:00:48,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 07:00:48,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48" (1/1) ... [2023-09-07 07:00:48,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48" (1/1) ... [2023-09-07 07:00:48,794 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48" (1/1) ... [2023-09-07 07:00:48,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48" (1/1) ... [2023-09-07 07:00:48,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48" (1/1) ... [2023-09-07 07:00:48,805 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48" (1/1) ... [2023-09-07 07:00:48,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48" (1/1) ... [2023-09-07 07:00:48,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48" (1/1) ... [2023-09-07 07:00:48,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 07:00:48,810 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 07:00:48,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 07:00:48,811 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 07:00:48,811 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48" (1/1) ... [2023-09-07 07:00:48,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 07:00:48,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:00:48,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-07 07:00:48,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-07 07:00:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 07:00:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 07:00:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 07:00:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 07:00:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-07 07:00:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-07 07:00:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-07 07:00:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-07 07:00:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-07 07:00:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-07 07:00:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-09-07 07:00:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-09-07 07:00:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 07:00:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-07 07:00:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-07 07:00:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-07 07:00:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 07:00:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 07:00:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 07:00:48,869 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 07:00:48,954 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 07:00:48,956 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 07:00:49,284 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 07:00:49,451 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 07:00:49,451 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-09-07 07:00:49,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 07:00:49 BoogieIcfgContainer [2023-09-07 07:00:49,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 07:00:49,460 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 07:00:49,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 07:00:49,463 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 07:00:49,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 07:00:48" (1/3) ... [2023-09-07 07:00:49,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e7b7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 07:00:49, skipping insertion in model container [2023-09-07 07:00:49,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:00:48" (2/3) ... [2023-09-07 07:00:49,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e7b7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 07:00:49, skipping insertion in model container [2023-09-07 07:00:49,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 07:00:49" (3/3) ... [2023-09-07 07:00:49,465 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult.wvr.c [2023-09-07 07:00:49,470 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 07:00:49,476 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 07:00:49,476 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 07:00:49,476 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 07:00:49,543 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-09-07 07:00:49,581 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 07:00:49,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 07:00:49,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:00:49,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 07:00:49,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-07 07:00:49,619 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 07:00:49,625 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 07:00:49,629 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;@67a14a87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 07:00:49,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Found a loop, use abstraction hammer [2023-09-07 07:01:19,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:01:19,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:01:19,343 INFO L85 PathProgramCache]: Analyzing trace with hash -676697536, now seen corresponding path program 1 times [2023-09-07 07:01:19,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:01:19,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354455839] [2023-09-07 07:01:19,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:01:19,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:01:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:01:19,614 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-09-07 07:01:19,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:01:19,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354455839] [2023-09-07 07:01:19,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354455839] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 07:01:19,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 07:01:19,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-07 07:01:19,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474669463] [2023-09-07 07:01:19,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 07:01:19,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-07 07:01:19,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:01:19,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-07 07:01:19,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-07 07:01:19,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:01:19,652 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:01:19,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 07:01:19,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:01:49,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:01:49,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 07:01:49,872 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:01:49,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:01:49,873 INFO L85 PathProgramCache]: Analyzing trace with hash -2055031313, now seen corresponding path program 1 times [2023-09-07 07:01:49,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:01:49,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670781030] [2023-09-07 07:01:49,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:01:49,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:01:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:01:50,275 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-09-07 07:01:50,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:01:50,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670781030] [2023-09-07 07:01:50,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670781030] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 07:01:50,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 07:01:50,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-07 07:01:50,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225174242] [2023-09-07 07:01:50,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 07:01:50,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-07 07:01:50,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:01:50,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-07 07:01:50,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-07 07:01:50,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:01:50,282 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:01:50,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 07:01:50,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:01:50,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:02:15,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:02:15,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 07:02:15,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-07 07:02:15,152 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:02:15,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:02:15,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2110880844, now seen corresponding path program 1 times [2023-09-07 07:02:15,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:02:15,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489006235] [2023-09-07 07:02:15,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:02:15,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:02:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:02:15,535 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-09-07 07:02:15,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:02:15,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489006235] [2023-09-07 07:02:15,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489006235] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 07:02:15,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751045523] [2023-09-07 07:02:15,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:02:15,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:02:15,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:02:15,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 07:02:15,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-07 07:02:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:02:15,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 9 conjunts are in the unsatisfiable core [2023-09-07 07:02:15,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 07:02:15,967 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-09-07 07:02:15,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 07:02:16,246 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-09-07 07:02:16,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751045523] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 07:02:16,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 07:02:16,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-09-07 07:02:16,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073996023] [2023-09-07 07:02:16,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 07:02:16,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-09-07 07:02:16,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:02:16,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-09-07 07:02:16,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-09-07 07:02:16,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:02:16,249 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:02:16,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.473684210526315) internal successors, (256), 19 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 07:02:16,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:02:16,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 07:02:16,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:02:42,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:02:42,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 07:02:42,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-07 07:02:42,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-09-07 07:02:42,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-09-07 07:02:42,351 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:02:42,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:02:42,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1365424552, now seen corresponding path program 2 times [2023-09-07 07:02:42,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:02:42,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291156020] [2023-09-07 07:02:42,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:02:42,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:02:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:02:42,656 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-09-07 07:02:42,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:02:42,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291156020] [2023-09-07 07:02:42,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291156020] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 07:02:42,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836000524] [2023-09-07 07:02:42,661 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 07:02:42,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:02:42,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:02:42,662 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 07:02:42,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-07 07:02:42,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 07:02:42,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 07:02:42,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 7 conjunts are in the unsatisfiable core [2023-09-07 07:02:42,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 07:02:43,070 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-09-07 07:02:43,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 07:02:43,323 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-09-07 07:02:43,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836000524] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 07:02:43,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 07:02:43,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2023-09-07 07:02:43,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77331782] [2023-09-07 07:02:43,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 07:02:43,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-07 07:02:43,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:02:43,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-07 07:02:43,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-09-07 07:02:43,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:02:43,327 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:02:43,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 25.53846153846154) internal successors, (332), 13 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 07:02:43,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:02:43,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 07:02:43,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-09-07 07:02:43,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Received shutdown request... [2023-09-07 07:14:53,875 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 07:14:53,875 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 07:14:53,875 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 07:14:54,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-09-07 07:14:54,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:14:54,360 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DynamicStratifiedReduction. [2023-09-07 07:14:54,362 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-09-07 07:14:54,432 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-09-07 07:14:54,434 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/5) [2023-09-07 07:14:54,461 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-07 07:14:54,461 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-07 07:14:54,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.09 07:14:54 BasicIcfg [2023-09-07 07:14:54,463 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-07 07:14:54,464 INFO L158 Benchmark]: Toolchain (without parser) took 845919.34ms. Allocated memory was 318.8MB in the beginning and 611.3MB in the end (delta: 292.6MB). Free memory was 273.9MB in the beginning and 55.1MB in the end (delta: 218.9MB). Peak memory consumption was 710.0MB. Max. memory is 7.0GB. [2023-09-07 07:14:54,464 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 206.6MB. Free memory was 159.4MB in the beginning and 159.2MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 7.0GB. [2023-09-07 07:14:54,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.28ms. Allocated memory is still 318.8MB. Free memory was 273.9MB in the beginning and 260.9MB in the end (delta: 13.0MB). Peak memory consumption was 13.6MB. Max. memory is 7.0GB. [2023-09-07 07:14:54,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.19ms. Allocated memory is still 318.8MB. Free memory was 260.9MB in the beginning and 258.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-07 07:14:54,465 INFO L158 Benchmark]: Boogie Preprocessor took 25.02ms. Allocated memory is still 318.8MB. Free memory was 258.2MB in the beginning and 256.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-07 07:14:54,465 INFO L158 Benchmark]: RCFGBuilder took 648.73ms. Allocated memory is still 318.8MB. Free memory was 256.1MB in the beginning and 271.4MB in the end (delta: -15.3MB). Peak memory consumption was 35.5MB. Max. memory is 7.0GB. [2023-09-07 07:14:54,465 INFO L158 Benchmark]: TraceAbstraction took 845002.96ms. Allocated memory was 318.8MB in the beginning and 611.3MB in the end (delta: 292.6MB). Free memory was 270.3MB in the beginning and 55.1MB in the end (delta: 215.2MB). Peak memory consumption was 704.9MB. Max. memory is 7.0GB. [2023-09-07 07:14:54,467 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 206.6MB. Free memory was 159.4MB in the beginning and 159.2MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 199.28ms. Allocated memory is still 318.8MB. Free memory was 273.9MB in the beginning and 260.9MB in the end (delta: 13.0MB). Peak memory consumption was 13.6MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 37.19ms. Allocated memory is still 318.8MB. Free memory was 260.9MB in the beginning and 258.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * Boogie Preprocessor took 25.02ms. Allocated memory is still 318.8MB. Free memory was 258.2MB in the beginning and 256.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * RCFGBuilder took 648.73ms. Allocated memory is still 318.8MB. Free memory was 256.1MB in the beginning and 271.4MB in the end (delta: -15.3MB). Peak memory consumption was 35.5MB. Max. memory is 7.0GB. * TraceAbstraction took 845002.96ms. Allocated memory was 318.8MB in the beginning and 611.3MB in the end (delta: 292.6MB). Free memory was 270.3MB in the beginning and 55.1MB in the end (delta: 215.2MB). Peak memory consumption was 704.9MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 95345, independent: 89562, independent conditional: 89562, independent unconditional: 0, dependent: 5783, dependent conditional: 5783, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 90281, independent: 89562, independent conditional: 89562, independent unconditional: 0, dependent: 719, dependent conditional: 719, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 90281, independent: 89562, independent conditional: 89562, independent unconditional: 0, dependent: 719, dependent conditional: 719, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 92057, independent: 89562, independent conditional: 0, independent unconditional: 89562, dependent: 2495, dependent conditional: 1776, dependent unconditional: 719, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 92057, independent: 89562, independent conditional: 0, independent unconditional: 89562, dependent: 2495, dependent conditional: 0, dependent unconditional: 2495, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 92057, independent: 89562, independent conditional: 0, independent unconditional: 89562, dependent: 2495, dependent conditional: 0, dependent unconditional: 2495, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 90281, independent: 89562, independent conditional: 0, independent unconditional: 89562, dependent: 719, dependent conditional: 0, dependent unconditional: 719, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 90281, independent: 89562, independent conditional: 0, independent unconditional: 89562, dependent: 719, dependent conditional: 0, dependent unconditional: 719, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 719, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 719, dependent conditional: 0, dependent unconditional: 719, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 719, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 719, dependent conditional: 0, dependent unconditional: 719, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 719, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 719, dependent conditional: 0, dependent unconditional: 719, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2257, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2257, dependent conditional: 0, dependent unconditional: 2257, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 92057, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1776, dependent conditional: 0, dependent unconditional: 1776, unknown: 90281, unknown conditional: 0, unknown unconditional: 90281] , Statistics on independence cache: Total cache size (in pairs): 90281, Positive cache size: 89562, Positive conditional cache size: 0, Positive unconditional cache size: 89562, Negative cache size: 719, Negative conditional cache size: 0, Negative unconditional cache size: 719, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1776, Maximal queried relation: 4, Independence queries for same thread: 5064 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 5, RedundantProofs: 2, ProvenStates: 6458 - TimeoutResultAtElement [Line: 152]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing DynamicStratifiedReduction. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 9 procedures, 241 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 844.8s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 841.5s, 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: 40, 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, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1220 NumberOfCodeBlocks, 1220 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1630 ConstructedInterpolants, 0 QuantifiedInterpolants, 3648 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1154 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 220/235 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown