/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/loop-tiling-eq.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-fffa3fa-m [2023-09-04 23:38:10,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-04 23:38:10,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2023-09-04 23:38:10,129 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-04 23:38:10,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-04 23:38:10,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-04 23:38:10,143 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-04 23:38:10,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-04 23:38:10,144 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-04 23:38:10,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-04 23:38:10,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-04 23:38:10,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-04 23:38:10,145 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-04 23:38:10,145 INFO L153 SettingsManager]: * Use SBE=true [2023-09-04 23:38:10,146 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-04 23:38:10,146 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-04 23:38:10,146 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-04 23:38:10,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-04 23:38:10,146 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-04 23:38:10,147 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-04 23:38:10,147 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-04 23:38:10,147 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-04 23:38:10,148 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-04 23:38:10,148 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-04 23:38:10,148 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-04 23:38:10,148 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-04 23:38:10,148 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-04 23:38:10,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-04 23:38:10,149 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-04 23:38:10,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-04 23:38:10,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-04 23:38:10,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-04 23:38:10,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-04 23:38:10,150 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2023-09-04 23:38:10,150 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-04 23:38:10,150 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-04 23:38:10,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-04 23:38:10,151 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-04 23:38:10,151 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-04 23:38:10,151 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-04 23:38:10,151 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2023-09-04 23:38:10,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-09-04 23:38:10,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-04 23:38:10,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-04 23:38:10,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-04 23:38:10,330 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-04 23:38:10,330 INFO L274 PluginConnector]: CDTParser initialized [2023-09-04 23:38:10,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/loop-tiling-eq.wvr.c [2023-09-04 23:38:11,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-04 23:38:11,533 INFO L384 CDTParser]: Found 1 translation units. [2023-09-04 23:38:11,533 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/loop-tiling-eq.wvr.c [2023-09-04 23:38:11,542 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ceb4cafa/037ac9c74c0146458b196a811688fb8d/FLAG37f8f0b06 [2023-09-04 23:38:11,957 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ceb4cafa/037ac9c74c0146458b196a811688fb8d [2023-09-04 23:38:11,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-04 23:38:11,960 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-04 23:38:11,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-04 23:38:11,961 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-04 23:38:11,967 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-04 23:38:11,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 11:38:11" (1/1) ... [2023-09-04 23:38:11,969 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a8e485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:11, skipping insertion in model container [2023-09-04 23:38:11,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 11:38:11" (1/1) ... [2023-09-04 23:38:11,989 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-09-04 23:38:12,095 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/loop-tiling-eq.wvr.c[2618,2631] [2023-09-04 23:38:12,098 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-04 23:38:12,104 INFO L201 MainTranslator]: Completed pre-run [2023-09-04 23:38:12,119 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/loop-tiling-eq.wvr.c[2618,2631] [2023-09-04 23:38:12,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-04 23:38:12,130 INFO L206 MainTranslator]: Completed translation [2023-09-04 23:38:12,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:12 WrapperNode [2023-09-04 23:38:12,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-04 23:38:12,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-04 23:38:12,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-04 23:38:12,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-04 23:38:12,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:12" (1/1) ... [2023-09-04 23:38:12,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:12" (1/1) ... [2023-09-04 23:38:12,158 INFO L138 Inliner]: procedures = 25, calls = 41, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 197 [2023-09-04 23:38:12,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-04 23:38:12,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-04 23:38:12,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-04 23:38:12,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-04 23:38:12,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:12" (1/1) ... [2023-09-04 23:38:12,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:12" (1/1) ... [2023-09-04 23:38:12,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:12" (1/1) ... [2023-09-04 23:38:12,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:12" (1/1) ... [2023-09-04 23:38:12,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:12" (1/1) ... [2023-09-04 23:38:12,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:12" (1/1) ... [2023-09-04 23:38:12,177 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:12" (1/1) ... [2023-09-04 23:38:12,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:12" (1/1) ... [2023-09-04 23:38:12,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-04 23:38:12,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-04 23:38:12,180 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-04 23:38:12,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-04 23:38:12,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:12" (1/1) ... [2023-09-04 23:38:12,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-04 23:38:12,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-04 23:38:12,218 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) [2023-09-04 23:38:12,268 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 [2023-09-04 23:38:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-04 23:38:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-04 23:38:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-04 23:38:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-04 23:38:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-04 23:38:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-09-04 23:38:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-04 23:38:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-04 23:38:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-04 23:38:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-04 23:38:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-04 23:38:12,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-04 23:38:12,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-04 23:38:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-04 23:38:12,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-04 23:38:12,286 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-04 23:38:12,355 INFO L236 CfgBuilder]: Building ICFG [2023-09-04 23:38:12,356 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-04 23:38:12,627 INFO L277 CfgBuilder]: Performing block encoding [2023-09-04 23:38:12,633 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-04 23:38:12,634 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-09-04 23:38:12,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 11:38:12 BoogieIcfgContainer [2023-09-04 23:38:12,635 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-04 23:38:12,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-04 23:38:12,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-04 23:38:12,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-04 23:38:12,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 11:38:11" (1/3) ... [2023-09-04 23:38:12,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a48502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 11:38:12, skipping insertion in model container [2023-09-04 23:38:12,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:38:12" (2/3) ... [2023-09-04 23:38:12,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a48502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 11:38:12, skipping insertion in model container [2023-09-04 23:38:12,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 11:38:12" (3/3) ... [2023-09-04 23:38:12,641 INFO L112 eAbstractionObserver]: Analyzing ICFG loop-tiling-eq.wvr.c [2023-09-04 23:38:12,647 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-04 23:38:12,653 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-04 23:38:12,654 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-04 23:38:12,654 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-04 23:38:12,725 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-04 23:38:12,754 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-04 23:38:12,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-04 23:38:12,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-04 23:38:12,757 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) [2023-09-04 23:38:12,770 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 [2023-09-04 23:38:12,789 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-04 23:38:12,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-04 23:38:12,798 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;@27294457, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-04 23:38:12,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. Found a loop, use abstraction hammer [2023-09-04 23:38:12,932 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-04 23:38:12,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-04 23:38:12,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1402026386, now seen corresponding path program 1 times [2023-09-04 23:38:12,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-04 23:38:12,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460736451] [2023-09-04 23:38:12,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-04 23:38:12,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-04 23:38:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-04 23:38:13,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-04 23:38:13,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460736451] [2023-09-04 23:38:13,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-09-04 23:38:13,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920708897] [2023-09-04 23:38:13,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-04 23:38:13,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-04 23:38:13,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-04 23:38:13,138 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) [2023-09-04 23:38:13,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-04 23:38:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-04 23:38:13,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 1 conjunts are in the unsatisfiable core [2023-09-04 23:38:13,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-04 23:38:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-09-04 23:38:13,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-04 23:38:13,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920708897] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-04 23:38:13,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-04 23:38:13,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-04 23:38:13,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188238439] [2023-09-04 23:38:13,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-04 23:38:13,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-04 23:38:13,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-04 23:38:13,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-04 23:38:13,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-04 23:38:13,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:13,331 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-04 23:38:13,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 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) [2023-09-04 23:38:13,332 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 [2023-09-04 23:38:13,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:13,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-09-04 23:38:13,640 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,SelfDestructingSolverStorable0 [2023-09-04 23:38:13,640 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-04 23:38:13,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-04 23:38:13,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1342557557, now seen corresponding path program 1 times [2023-09-04 23:38:13,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-04 23:38:13,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383035396] [2023-09-04 23:38:13,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-04 23:38:13,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-04 23:38:13,668 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-09-04 23:38:13,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451024288] [2023-09-04 23:38:13,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-04 23:38:13,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-04 23:38:13,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-04 23:38:13,672 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) [2023-09-04 23:38:13,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-04 23:38:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-04 23:38:13,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 8 conjunts are in the unsatisfiable core [2023-09-04 23:38:13,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-04 23:38:13,974 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-09-04 23:38:13,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-04 23:38:14,131 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-09-04 23:38:14,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-04 23:38:14,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383035396] [2023-09-04 23:38:14,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-09-04 23:38:14,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451024288] [2023-09-04 23:38:14,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451024288] provided 1 perfect and 1 imperfect interpolant sequences [2023-09-04 23:38:14,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-04 23:38:14,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 13 [2023-09-04 23:38:14,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147587690] [2023-09-04 23:38:14,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-04 23:38:14,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-04 23:38:14,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-04 23:38:14,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-04 23:38:14,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-09-04 23:38:14,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:14,136 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-04 23:38:14,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 9 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) [2023-09-04 23:38:14,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:14,137 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 [2023-09-04 23:38:14,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:14,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-04 23:38:14,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-09-04 23:38:14,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-04 23:38:14,533 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-04 23:38:14,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-04 23:38:14,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1269014031, now seen corresponding path program 1 times [2023-09-04 23:38:14,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-04 23:38:14,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570771305] [2023-09-04 23:38:14,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-04 23:38:14,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-04 23:38:14,561 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-09-04 23:38:14,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [855940410] [2023-09-04 23:38:14,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-04 23:38:14,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-04 23:38:14,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-04 23:38:14,562 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-04 23:38:14,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-04 23:38:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-04 23:38:14,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 12 conjunts are in the unsatisfiable core [2023-09-04 23:38:14,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-04 23:38:14,880 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-09-04 23:38:14,881 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-04 23:38:15,089 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-09-04 23:38:15,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-04 23:38:15,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570771305] [2023-09-04 23:38:15,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-09-04 23:38:15,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855940410] [2023-09-04 23:38:15,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855940410] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-04 23:38:15,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-09-04 23:38:15,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2023-09-04 23:38:15,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433355471] [2023-09-04 23:38:15,091 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-09-04 23:38:15,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-09-04 23:38:15,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-04 23:38:15,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-09-04 23:38:15,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2023-09-04 23:38:15,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:15,099 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-04 23:38:15,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 12.333333333333334) internal successors, (259), 21 states have internal predecessors, (259), 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) [2023-09-04 23:38:15,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:15,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-04 23:38:15,100 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 [2023-09-04 23:38:15,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:15,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-04 23:38:15,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-09-04 23:38:15,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-09-04 23:38:15,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-04 23:38:15,955 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-04 23:38:15,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-04 23:38:15,955 INFO L85 PathProgramCache]: Analyzing trace with hash 143521814, now seen corresponding path program 2 times [2023-09-04 23:38:15,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-04 23:38:15,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966495383] [2023-09-04 23:38:15,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-04 23:38:15,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-04 23:38:15,980 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-09-04 23:38:15,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735182219] [2023-09-04 23:38:15,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-04 23:38:15,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-04 23:38:15,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-04 23:38:15,998 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-04 23:38:16,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-09-04 23:38:16,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-04 23:38:16,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-04 23:38:16,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-04 23:38:16,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-04 23:38:16,276 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-09-04 23:38:16,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-04 23:38:16,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-04 23:38:16,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966495383] [2023-09-04 23:38:16,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-09-04 23:38:16,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735182219] [2023-09-04 23:38:16,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735182219] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-04 23:38:16,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-04 23:38:16,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-04 23:38:16,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925894973] [2023-09-04 23:38:16,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-04 23:38:16,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-04 23:38:16,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-04 23:38:16,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-04 23:38:16,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-09-04 23:38:16,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:16,278 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-04 23:38:16,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 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) [2023-09-04 23:38:16,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:16,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-04 23:38:16,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-09-04 23:38:16,278 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 [2023-09-04 23:38:16,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:16,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-04 23:38:16,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-09-04 23:38:16,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-04 23:38:16,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-09-04 23:38:16,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-04 23:38:16,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-04 23:38:16,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-04 23:38:16,579 INFO L85 PathProgramCache]: Analyzing trace with hash 2038781198, now seen corresponding path program 1 times [2023-09-04 23:38:16,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-04 23:38:16,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780254166] [2023-09-04 23:38:16,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-04 23:38:16,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-04 23:38:16,599 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-09-04 23:38:16,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [477724116] [2023-09-04 23:38:16,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-04 23:38:16,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-04 23:38:16,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-04 23:38:16,613 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-04 23:38:16,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-09-04 23:38:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-04 23:38:16,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 16 conjunts are in the unsatisfiable core [2023-09-04 23:38:16,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-04 23:38:17,013 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 27 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-09-04 23:38:17,013 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-04 23:38:17,325 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-09-04 23:38:17,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-04 23:38:17,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780254166] [2023-09-04 23:38:17,326 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-09-04 23:38:17,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477724116] [2023-09-04 23:38:17,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477724116] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-04 23:38:17,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-09-04 23:38:17,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2023-09-04 23:38:17,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691541140] [2023-09-04 23:38:17,327 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-09-04 23:38:17,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-09-04 23:38:17,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-04 23:38:17,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-09-04 23:38:17,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=699, Unknown=0, NotChecked=0, Total=812 [2023-09-04 23:38:17,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:17,328 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-04 23:38:17,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.310344827586206) internal successors, (299), 29 states have internal predecessors, (299), 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) [2023-09-04 23:38:17,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:17,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-04 23:38:17,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-09-04 23:38:17,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-04 23:38:17,329 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 [2023-09-04 23:38:18,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:18,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-04 23:38:18,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-09-04 23:38:18,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-04 23:38:18,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-09-04 23:38:18,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-09-04 23:38:18,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-04 23:38:18,346 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-04 23:38:18,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-04 23:38:18,347 INFO L85 PathProgramCache]: Analyzing trace with hash -448749261, now seen corresponding path program 2 times [2023-09-04 23:38:18,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-04 23:38:18,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008202007] [2023-09-04 23:38:18,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-04 23:38:18,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-04 23:38:18,381 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-09-04 23:38:18,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [125282697] [2023-09-04 23:38:18,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-04 23:38:18,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-04 23:38:18,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-04 23:38:18,391 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-04 23:38:18,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-09-04 23:38:18,658 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-04 23:38:18,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-04 23:38:18,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 20 conjunts are in the unsatisfiable core [2023-09-04 23:38:18,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-04 23:38:18,984 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 27 proven. 52 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-09-04 23:38:18,984 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-04 23:38:19,394 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 52 proven. 27 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-09-04 23:38:19,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-04 23:38:19,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008202007] [2023-09-04 23:38:19,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-09-04 23:38:19,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125282697] [2023-09-04 23:38:19,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125282697] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-04 23:38:19,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-09-04 23:38:19,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 37 [2023-09-04 23:38:19,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502980769] [2023-09-04 23:38:19,395 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-09-04 23:38:19,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-09-04 23:38:19,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-04 23:38:19,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-09-04 23:38:19,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1161, Unknown=0, NotChecked=0, Total=1332 [2023-09-04 23:38:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:19,397 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-04 23:38:19,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 8.945945945945946) internal successors, (331), 37 states have internal predecessors, (331), 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) [2023-09-04 23:38:19,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:19,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-04 23:38:19,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-09-04 23:38:19,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-04 23:38:19,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-09-04 23:38:19,398 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 [2023-09-04 23:38:20,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-04 23:38:20,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-04 23:38:20,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-09-04 23:38:20,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-04 23:38:20,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-09-04 23:38:20,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-09-04 23:38:20,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-09-04 23:38:20,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-04 23:38:20,664 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-04 23:38:20,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-04 23:38:20,665 INFO L85 PathProgramCache]: Analyzing trace with hash -394487720, now seen corresponding path program 3 times [2023-09-04 23:38:20,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-04 23:38:20,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192137057] [2023-09-04 23:38:20,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-04 23:38:20,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-04 23:38:20,688 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-09-04 23:38:20,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162595918] [2023-09-04 23:38:20,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-04 23:38:20,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-04 23:38:20,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-04 23:38:20,689 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-04 23:38:20,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Received shutdown request... [2023-09-04 23:43:00,999 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 [2023-09-04 23:43:00,999 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 [2023-09-04 23:43:00,999 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-04 23:43:02,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-09-04 23:43:02,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-09-04 23:43:02,205 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forcibly destroying the process [2023-09-04 23:43:02,212 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-09-04 23:43:02,213 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-09-04 23:43:02,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-09-04 23:43:02,214 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 287 with TraceHistMax 5,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-09-04 23:43:02,215 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-09-04 23:43:02,215 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-09-04 23:43:02,217 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2023-09-04 23:43:02,219 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-04 23:43:02,219 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-04 23:43:02,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 137 [2023-09-04 23:43:02,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 11:43:02 BasicIcfg [2023-09-04 23:43:02,234 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-04 23:43:02,234 INFO L158 Benchmark]: Toolchain (without parser) took 290273.94ms. Allocated memory was 259.0MB in the beginning and 338.7MB in the end (delta: 79.7MB). Free memory was 215.2MB in the beginning and 118.8MB in the end (delta: 96.4MB). Peak memory consumption was 176.6MB. Max. memory is 7.0GB. [2023-09-04 23:43:02,234 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory was 142.3MB in the beginning and 142.2MB in the end (delta: 163.6kB). There was no memory consumed. Max. memory is 7.0GB. [2023-09-04 23:43:02,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.37ms. Allocated memory is still 259.0MB. Free memory was 215.2MB in the beginning and 203.2MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 7.0GB. [2023-09-04 23:43:02,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.31ms. Allocated memory is still 259.0MB. Free memory was 203.2MB in the beginning and 201.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-04 23:43:02,235 INFO L158 Benchmark]: Boogie Preprocessor took 21.57ms. Allocated memory is still 259.0MB. Free memory was 201.1MB in the beginning and 199.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-04 23:43:02,235 INFO L158 Benchmark]: RCFGBuilder took 455.12ms. Allocated memory is still 259.0MB. Free memory was 199.0MB in the beginning and 175.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 7.0GB. [2023-09-04 23:43:02,235 INFO L158 Benchmark]: TraceAbstraction took 289596.73ms. Allocated memory was 259.0MB in the beginning and 338.7MB in the end (delta: 79.7MB). Free memory was 175.4MB in the beginning and 118.8MB in the end (delta: 56.6MB). Peak memory consumption was 136.8MB. Max. memory is 7.0GB. [2023-09-04 23:43:02,239 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory was 142.3MB in the beginning and 142.2MB in the end (delta: 163.6kB). There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 170.37ms. Allocated memory is still 259.0MB. Free memory was 215.2MB in the beginning and 203.2MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 26.31ms. Allocated memory is still 259.0MB. Free memory was 203.2MB in the beginning and 201.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * Boogie Preprocessor took 21.57ms. Allocated memory is still 259.0MB. Free memory was 201.1MB in the beginning and 199.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * RCFGBuilder took 455.12ms. Allocated memory is still 259.0MB. Free memory was 199.0MB in the beginning and 175.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 7.0GB. * TraceAbstraction took 289596.73ms. Allocated memory was 259.0MB in the beginning and 338.7MB in the end (delta: 79.7MB). Free memory was 175.4MB in the beginning and 118.8MB in the end (delta: 56.6MB). Peak memory consumption was 136.8MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 758, independent: 567, independent conditional: 567, independent unconditional: 0, dependent: 191, dependent conditional: 191, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 581, independent: 567, independent conditional: 567, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 581, independent: 567, independent conditional: 567, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 623, independent: 567, independent conditional: 0, independent unconditional: 567, dependent: 56, dependent conditional: 42, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 623, independent: 567, independent conditional: 0, independent unconditional: 567, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 623, independent: 567, independent conditional: 0, independent unconditional: 567, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 581, independent: 567, independent conditional: 0, independent unconditional: 567, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 581, independent: 567, independent conditional: 0, independent unconditional: 567, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 14, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 44, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 623, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 581, unknown conditional: 0, unknown unconditional: 581] , Statistics on independence cache: Total cache size (in pairs): 581, Positive cache size: 567, Positive conditional cache size: 0, Positive unconditional cache size: 567, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 42, Maximal queried relation: 6, Independence queries for same thread: 177 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 15 - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 287 with TraceHistMax 5,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 287 with TraceHistMax 5,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 287 with TraceHistMax 5,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 273 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 289.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 3.0s, 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: 131, 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: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1565 NumberOfCodeBlocks, 1565 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2307 ConstructedInterpolants, 0 QuantifiedInterpolants, 4621 SizeOfPredicates, 57 NumberOfNonLiveVariables, 3374 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 286/414 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