/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking DFS --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.conditional-comm-3774817-m [2024-04-05 02:49:04,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-04-05 02:49:04,733 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-04-05 02:49:04,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-04-05 02:49:04,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-04-05 02:49:04,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-04-05 02:49:04,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-04-05 02:49:04,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-04-05 02:49:04,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-04-05 02:49:04,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-04-05 02:49:04,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-04-05 02:49:04,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-04-05 02:49:04,769 INFO L153 SettingsManager]: * Use SBE=true [2024-04-05 02:49:04,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-04-05 02:49:04,771 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-04-05 02:49:04,771 INFO L153 SettingsManager]: * sizeof long=4 [2024-04-05 02:49:04,771 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-04-05 02:49:04,771 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-04-05 02:49:04,771 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-04-05 02:49:04,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-04-05 02:49:04,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-04-05 02:49:04,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-04-05 02:49:04,772 INFO L153 SettingsManager]: * sizeof long double=12 [2024-04-05 02:49:04,772 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-04-05 02:49:04,772 INFO L153 SettingsManager]: * Use constant arrays=true [2024-04-05 02:49:04,772 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-04-05 02:49:04,773 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-04-05 02:49:04,773 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-04-05 02:49:04,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-04-05 02:49:04,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-04-05 02:49:04,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-04-05 02:49:04,774 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-04-05 02:49:04,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-04-05 02:49:04,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-04-05 02:49:04,774 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-04-05 02:49:04,775 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-04-05 02:49:04,775 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-04-05 02:49:04,775 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-04-05 02:49:04,775 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-04-05 02:49:04,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> DFS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: seed for random criterion -> 213 [2024-04-05 02:49:04,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-04-05 02:49:04,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-04-05 02:49:04,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-04-05 02:49:04,996 INFO L270 PluginConnector]: Initializing CDTParser... [2024-04-05 02:49:04,996 INFO L274 PluginConnector]: CDTParser initialized [2024-04-05 02:49:04,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c [2024-04-05 02:49:06,113 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-04-05 02:49:06,272 INFO L384 CDTParser]: Found 1 translation units. [2024-04-05 02:49:06,272 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c [2024-04-05 02:49:06,278 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4d331118d/b52c973e96d641c981cb150e73bdb82b/FLAG406bee1f0 [2024-04-05 02:49:06,288 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4d331118d/b52c973e96d641c981cb150e73bdb82b [2024-04-05 02:49:06,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-04-05 02:49:06,291 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-04-05 02:49:06,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-04-05 02:49:06,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-04-05 02:49:06,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-04-05 02:49:06,297 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 02:49:06" (1/1) ... [2024-04-05 02:49:06,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6784c180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06, skipping insertion in model container [2024-04-05 02:49:06,298 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 02:49:06" (1/1) ... [2024-04-05 02:49:06,315 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-04-05 02:49:06,450 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-bad-three-array-sum-alt.wvr.c[2412,2425] [2024-04-05 02:49:06,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-04-05 02:49:06,468 INFO L202 MainTranslator]: Completed pre-run [2024-04-05 02:49:06,499 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-bad-three-array-sum-alt.wvr.c[2412,2425] [2024-04-05 02:49:06,504 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-04-05 02:49:06,516 INFO L206 MainTranslator]: Completed translation [2024-04-05 02:49:06,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06 WrapperNode [2024-04-05 02:49:06,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-04-05 02:49:06,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-04-05 02:49:06,517 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-04-05 02:49:06,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-04-05 02:49:06,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06" (1/1) ... [2024-04-05 02:49:06,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06" (1/1) ... [2024-04-05 02:49:06,613 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 15, calls inlined = 27, statements flattened = 280 [2024-04-05 02:49:06,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-04-05 02:49:06,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-04-05 02:49:06,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-04-05 02:49:06,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-04-05 02:49:06,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06" (1/1) ... [2024-04-05 02:49:06,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06" (1/1) ... [2024-04-05 02:49:06,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06" (1/1) ... [2024-04-05 02:49:06,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06" (1/1) ... [2024-04-05 02:49:06,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06" (1/1) ... [2024-04-05 02:49:06,662 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06" (1/1) ... [2024-04-05 02:49:06,664 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06" (1/1) ... [2024-04-05 02:49:06,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06" (1/1) ... [2024-04-05 02:49:06,667 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-04-05 02:49:06,668 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-04-05 02:49:06,668 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-04-05 02:49:06,668 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-04-05 02:49:06,669 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06" (1/1) ... [2024-04-05 02:49:06,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-04-05 02:49:06,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 02:49:06,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-04-05 02:49:06,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-04-05 02:49:06,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-04-05 02:49:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-04-05 02:49:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-04-05 02:49:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-04-05 02:49:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-04-05 02:49:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-04-05 02:49:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-04-05 02:49:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-04-05 02:49:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-04-05 02:49:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-04-05 02:49:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-04-05 02:49:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-04-05 02:49:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-04-05 02:49:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-04-05 02:49:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-04-05 02:49:06,768 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-04-05 02:49:06,882 INFO L241 CfgBuilder]: Building ICFG [2024-04-05 02:49:06,884 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-04-05 02:49:07,238 INFO L282 CfgBuilder]: Performing block encoding [2024-04-05 02:49:07,261 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-04-05 02:49:07,261 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2024-04-05 02:49:07,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 02:49:07 BoogieIcfgContainer [2024-04-05 02:49:07,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-04-05 02:49:07,264 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-04-05 02:49:07,264 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-04-05 02:49:07,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-04-05 02:49:07,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 02:49:06" (1/3) ... [2024-04-05 02:49:07,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee3dd32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 02:49:07, skipping insertion in model container [2024-04-05 02:49:07,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 02:49:06" (2/3) ... [2024-04-05 02:49:07,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee3dd32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 02:49:07, skipping insertion in model container [2024-04-05 02:49:07,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 02:49:07" (3/3) ... [2024-04-05 02:49:07,269 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2024-04-05 02:49:07,277 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-04-05 02:49:07,286 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-04-05 02:49:07,287 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-04-05 02:49:07,287 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-04-05 02:49:07,386 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-04-05 02:49:07,433 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-04-05 02:49:07,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-04-05 02:49:07,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 02:49:07,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-04-05 02:49:07,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-04-05 02:49:07,476 INFO L184 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-04-05 02:49:07,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 02:49:07,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-04-05 02:49:07,493 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=LoopHeads, 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;@4cea146d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=RANDOM, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213 [2024-04-05 02:49:07,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-04-05 02:49:24,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-05 02:49:24,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 02:49:24,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2034589516, now seen corresponding path program 1 times [2024-04-05 02:49:24,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 02:49:24,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140965207] [2024-04-05 02:49:24,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 02:49:24,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 02:49:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 02:49:24,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1145 trivial. 0 not checked. [2024-04-05 02:49:24,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 02:49:24,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140965207] [2024-04-05 02:49:24,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140965207] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-05 02:49:24,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-05 02:49:24,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-04-05 02:49:24,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912195849] [2024-04-05 02:49:24,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-05 02:49:24,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-04-05 02:49:24,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 02:49:24,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-04-05 02:49:24,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-04-05 02:49:24,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:49:24,938 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 02:49:24,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 156.5) internal successors, (313), 2 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-04-05 02:49:24,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:49:35,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:49:35,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-04-05 02:49:35,099 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-05 02:49:35,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 02:49:35,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1244225216, now seen corresponding path program 1 times [2024-04-05 02:49:35,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 02:49:35,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053525956] [2024-04-05 02:49:35,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 02:49:35,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 02:49:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 02:49:35,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2024-04-05 02:49:35,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 02:49:35,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053525956] [2024-04-05 02:49:35,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053525956] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-05 02:49:35,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-05 02:49:35,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-04-05 02:49:35,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913779182] [2024-04-05 02:49:35,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-05 02:49:35,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-04-05 02:49:35,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 02:49:35,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-04-05 02:49:35,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-04-05 02:49:35,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:49:35,959 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 02:49:35,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.42857142857143) internal successors, (297), 7 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-04-05 02:49:35,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:49:35,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:49:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:49:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:49:46,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-04-05 02:49:46,122 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-05 02:49:46,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 02:49:46,122 INFO L85 PathProgramCache]: Analyzing trace with hash 357252943, now seen corresponding path program 1 times [2024-04-05 02:49:46,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 02:49:46,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277250218] [2024-04-05 02:49:46,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 02:49:46,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 02:49:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 02:49:46,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 287 proven. 2 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2024-04-05 02:49:46,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 02:49:46,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277250218] [2024-04-05 02:49:46,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277250218] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-05 02:49:46,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654578880] [2024-04-05 02:49:46,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 02:49:46,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 02:49:46,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 02:49:46,738 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-05 02:49:46,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-04-05 02:49:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 02:49:47,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 1266 conjuncts, 10 conjunts are in the unsatisfiable core [2024-04-05 02:49:47,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-05 02:49:47,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 288 proven. 1 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2024-04-05 02:49:47,635 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-05 02:49:47,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 288 proven. 1 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2024-04-05 02:49:47,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654578880] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-05 02:49:47,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-05 02:49:47,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2024-04-05 02:49:47,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844358712] [2024-04-05 02:49:47,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-05 02:49:47,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-04-05 02:49:47,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 02:49:47,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-04-05 02:49:47,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-04-05 02:49:47,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:49:47,968 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 02:49:47,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 24.833333333333332) internal successors, (596), 24 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-04-05 02:49:47,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:49:47,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:49:47,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:49:58,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:49:58,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:49:58,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:49:58,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-04-05 02:49:58,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-04-05 02:49:58,583 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-05 02:49:58,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 02:49:58,584 INFO L85 PathProgramCache]: Analyzing trace with hash 301323998, now seen corresponding path program 2 times [2024-04-05 02:49:58,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 02:49:58,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850045494] [2024-04-05 02:49:58,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 02:49:58,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 02:49:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 02:50:00,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1103 backedges. 558 proven. 525 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-04-05 02:50:00,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 02:50:00,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850045494] [2024-04-05 02:50:00,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850045494] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-05 02:50:00,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380151263] [2024-04-05 02:50:00,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-04-05 02:50:00,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 02:50:00,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 02:50:00,213 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-05 02:50:00,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-04-05 02:50:00,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-04-05 02:50:00,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-05 02:50:00,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 14 conjunts are in the unsatisfiable core [2024-04-05 02:50:00,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-05 02:50:01,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1103 backedges. 409 proven. 10 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-04-05 02:50:01,238 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-05 02:50:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1103 backedges. 409 proven. 10 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-04-05 02:50:01,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380151263] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-05 02:50:01,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-05 02:50:01,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 15, 15] total 53 [2024-04-05 02:50:01,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855459417] [2024-04-05 02:50:01,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-05 02:50:01,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-04-05 02:50:01,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 02:50:01,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-04-05 02:50:01,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=2469, Unknown=0, NotChecked=0, Total=2756 [2024-04-05 02:50:01,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:50:01,853 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 02:50:01,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 21.20754716981132) internal successors, (1124), 53 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-04-05 02:50:01,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:50:01,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:50:01,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:50:01,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:50:14,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:50:14,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:50:14,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:50:14,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-04-05 02:50:14,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-04-05 02:50:14,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 02:50:14,461 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-05 02:50:14,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 02:50:14,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1663968621, now seen corresponding path program 3 times [2024-04-05 02:50:14,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 02:50:14,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559394611] [2024-04-05 02:50:14,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 02:50:14,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 02:50:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 02:50:15,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 626 proven. 182 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-04-05 02:50:15,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 02:50:15,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559394611] [2024-04-05 02:50:15,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559394611] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-05 02:50:15,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685851163] [2024-04-05 02:50:15,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-04-05 02:50:15,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 02:50:15,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 02:50:15,342 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-05 02:50:15,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-04-05 02:50:15,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-04-05 02:50:15,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-05 02:50:15,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 1350 conjuncts, 24 conjunts are in the unsatisfiable core [2024-04-05 02:50:15,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-05 02:50:16,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 634 proven. 174 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-04-05 02:50:16,757 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-05 02:50:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 382 proven. 545 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-04-05 02:50:17,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685851163] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-05 02:50:17,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-05 02:50:17,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 18] total 37 [2024-04-05 02:50:17,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585889171] [2024-04-05 02:50:17,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-05 02:50:17,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-04-05 02:50:17,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 02:50:17,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-04-05 02:50:17,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1121, Unknown=0, NotChecked=0, Total=1332 [2024-04-05 02:50:17,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:50:17,458 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 02:50:17,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 28.45945945945946) internal successors, (1053), 37 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-04-05 02:50:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:50:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:50:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:50:17,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-04-05 02:50:17,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:50:37,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:50:37,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:50:37,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:50:37,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-04-05 02:50:37,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-04-05 02:50:37,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-04-05 02:50:37,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 02:50:37,662 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-05 02:50:37,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 02:50:37,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1124129805, now seen corresponding path program 4 times [2024-04-05 02:50:37,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 02:50:37,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432764720] [2024-04-05 02:50:37,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 02:50:37,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 02:50:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 02:50:38,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2127 backedges. 1454 proven. 86 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2024-04-05 02:50:38,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 02:50:38,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432764720] [2024-04-05 02:50:38,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432764720] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-05 02:50:38,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070487825] [2024-04-05 02:50:38,790 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-04-05 02:50:38,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 02:50:38,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 02:50:38,801 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-05 02:50:38,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-04-05 02:50:39,067 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-04-05 02:50:39,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-05 02:50:39,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 18 conjunts are in the unsatisfiable core [2024-04-05 02:50:39,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-05 02:50:40,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2127 backedges. 1513 proven. 27 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2024-04-05 02:50:40,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-05 02:50:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2127 backedges. 1513 proven. 27 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2024-04-05 02:50:40,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070487825] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-05 02:50:40,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-05 02:50:40,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 44 [2024-04-05 02:50:40,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175699879] [2024-04-05 02:50:40,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-05 02:50:40,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-04-05 02:50:40,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 02:50:40,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-04-05 02:50:40,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=1570, Unknown=0, NotChecked=0, Total=1892 [2024-04-05 02:50:40,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:50:40,723 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 02:50:40,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 26.863636363636363) internal successors, (1182), 44 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-04-05 02:50:40,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:50:40,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:50:40,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:50:40,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-04-05 02:50:40,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-04-05 02:50:40,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:50:59,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:50:59,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:50:59,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:50:59,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-04-05 02:50:59,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-04-05 02:50:59,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-04-05 02:50:59,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-04-05 02:50:59,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-04-05 02:50:59,519 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-05 02:50:59,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 02:50:59,520 INFO L85 PathProgramCache]: Analyzing trace with hash -599270590, now seen corresponding path program 5 times [2024-04-05 02:50:59,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 02:50:59,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087402062] [2024-04-05 02:50:59,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 02:50:59,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 02:50:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 02:51:01,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 1789 proven. 198 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2024-04-05 02:51:01,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 02:51:01,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087402062] [2024-04-05 02:51:01,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087402062] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-05 02:51:01,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460414914] [2024-04-05 02:51:01,236 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-04-05 02:51:01,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 02:51:01,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 02:51:01,237 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-05 02:51:01,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-04-05 02:51:02,659 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-04-05 02:51:02,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-05 02:51:02,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 1712 conjuncts, 20 conjunts are in the unsatisfiable core [2024-04-05 02:51:02,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-05 02:51:03,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 1007 proven. 889 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-04-05 02:51:03,998 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-05 02:51:04,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 1126 proven. 323 refuted. 0 times theorem prover too weak. 753 trivial. 0 not checked. [2024-04-05 02:51:04,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460414914] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-05 02:51:04,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-05 02:51:04,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 21, 10] total 53 [2024-04-05 02:51:04,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195368795] [2024-04-05 02:51:04,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-05 02:51:04,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-04-05 02:51:04,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 02:51:04,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-04-05 02:51:04,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=2563, Unknown=0, NotChecked=0, Total=2756 [2024-04-05 02:51:04,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:51:04,780 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 02:51:04,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 34.81132075471698) internal successors, (1845), 53 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-04-05 02:51:04,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:51:04,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:51:04,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:51:04,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-04-05 02:51:04,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-04-05 02:51:04,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-04-05 02:51:04,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:51:39,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:51:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:51:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:51:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-04-05 02:51:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-04-05 02:51:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-04-05 02:51:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2024-04-05 02:51:39,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-04-05 02:51:40,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 02:51:40,025 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-05 02:51:40,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 02:51:40,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1731411671, now seen corresponding path program 6 times [2024-04-05 02:51:40,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 02:51:40,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875183846] [2024-04-05 02:51:40,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 02:51:40,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 02:51:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 02:51:41,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3432 backedges. 2699 proven. 202 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2024-04-05 02:51:41,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 02:51:41,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875183846] [2024-04-05 02:51:41,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875183846] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-05 02:51:41,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060605279] [2024-04-05 02:51:41,953 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-04-05 02:51:41,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 02:51:41,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 02:51:41,965 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-05 02:51:41,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-04-05 02:51:42,989 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-04-05 02:51:42,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-05 02:51:43,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 30 conjunts are in the unsatisfiable core [2024-04-05 02:51:43,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-05 02:51:45,064 INFO L134 CoverageAnalysis]: Checked inductivity of 3432 backedges. 923 proven. 2223 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-04-05 02:51:45,064 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-05 02:51:46,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3432 backedges. 1866 proven. 7 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2024-04-05 02:51:46,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060605279] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-05 02:51:46,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-05 02:51:46,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 31, 11] total 65 [2024-04-05 02:51:46,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19245399] [2024-04-05 02:51:46,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-05 02:51:46,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-04-05 02:51:46,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 02:51:46,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-04-05 02:51:46,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=3896, Unknown=0, NotChecked=0, Total=4160 [2024-04-05 02:51:46,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:51:46,109 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 02:51:46,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 32.87692307692308) internal successors, (2137), 65 states have internal predecessors, (2137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-04-05 02:51:46,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:51:46,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:51:46,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:51:46,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-04-05 02:51:46,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-04-05 02:51:46,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-04-05 02:51:46,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. [2024-04-05 02:51:46,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:53:02,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:53:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:53:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:53:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-04-05 02:53:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-04-05 02:53:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-04-05 02:53:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2024-04-05 02:53:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 409 states. [2024-04-05 02:53:02,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-04-05 02:53:02,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-04-05 02:53:02,706 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-05 02:53:02,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 02:53:02,707 INFO L85 PathProgramCache]: Analyzing trace with hash 890547288, now seen corresponding path program 7 times [2024-04-05 02:53:02,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 02:53:02,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033717349] [2024-04-05 02:53:02,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 02:53:02,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 02:53:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 02:53:05,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3495 backedges. 2879 proven. 272 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-04-05 02:53:05,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 02:53:05,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033717349] [2024-04-05 02:53:05,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033717349] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-05 02:53:05,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668583142] [2024-04-05 02:53:05,183 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-04-05 02:53:05,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 02:53:05,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 02:53:05,187 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-05 02:53:05,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-04-05 02:53:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 02:53:05,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 2071 conjuncts, 30 conjunts are in the unsatisfiable core [2024-04-05 02:53:05,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-05 02:53:07,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3495 backedges. 3025 proven. 126 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-04-05 02:53:07,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-05 02:53:09,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3495 backedges. 3025 proven. 126 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-04-05 02:53:09,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668583142] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-05 02:53:09,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-05 02:53:09,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 74 [2024-04-05 02:53:09,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429678814] [2024-04-05 02:53:09,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-05 02:53:09,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-04-05 02:53:09,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 02:53:09,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-04-05 02:53:09,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=823, Invalid=4579, Unknown=0, NotChecked=0, Total=5402 [2024-04-05 02:53:09,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:53:09,267 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 02:53:09,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 26.5) internal successors, (1961), 74 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-04-05 02:53:09,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:53:09,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:53:09,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:53:09,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-04-05 02:53:09,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-04-05 02:53:09,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-04-05 02:53:09,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. [2024-04-05 02:53:09,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 409 states. [2024-04-05 02:53:09,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:54:16,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:54:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:54:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:54:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-04-05 02:54:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-04-05 02:54:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-04-05 02:54:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2024-04-05 02:54:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 409 states. [2024-04-05 02:54:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-04-05 02:54:16,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-04-05 02:54:16,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 02:54:16,724 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-05 02:54:16,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 02:54:16,725 INFO L85 PathProgramCache]: Analyzing trace with hash -791804185, now seen corresponding path program 8 times [2024-04-05 02:54:16,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 02:54:16,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441193774] [2024-04-05 02:54:16,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 02:54:16,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 02:54:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 02:54:19,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3642 backedges. 2761 proven. 530 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-04-05 02:54:19,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 02:54:19,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441193774] [2024-04-05 02:54:19,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441193774] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-05 02:54:19,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286408152] [2024-04-05 02:54:19,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-04-05 02:54:19,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 02:54:19,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 02:54:19,358 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-05 02:54:19,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-04-05 02:54:19,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-04-05 02:54:19,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-05 02:54:19,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 2113 conjuncts, 34 conjunts are in the unsatisfiable core [2024-04-05 02:54:19,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-05 02:54:22,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3642 backedges. 3116 proven. 175 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-04-05 02:54:22,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-05 02:54:23,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3642 backedges. 3116 proven. 175 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-04-05 02:54:23,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286408152] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-05 02:54:23,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-05 02:54:23,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 84 [2024-04-05 02:54:23,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393449955] [2024-04-05 02:54:23,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-05 02:54:23,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2024-04-05 02:54:23,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 02:54:23,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2024-04-05 02:54:23,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1042, Invalid=5930, Unknown=0, NotChecked=0, Total=6972 [2024-04-05 02:54:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:54:23,766 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 02:54:23,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 26.273809523809526) internal successors, (2207), 84 states have internal predecessors, (2207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-04-05 02:54:23,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 02:54:23,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-05 02:54:23,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-04-05 02:54:23,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-04-05 02:54:23,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-04-05 02:54:23,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-04-05 02:54:23,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. [2024-04-05 02:54:23,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 409 states. [2024-04-05 02:54:23,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-04-05 02:54:23,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.