/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 DEFAULT --traceabstraction.use.limited.checks.recommended.for.dfs true --traceabstraction.limit.for.limited.checks 2 -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.conditional-comm-3774817-m [2024-04-05 12:13:19,002 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-04-05 12:13:19,056 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-04-05 12:13:19,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-04-05 12:13:19,060 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-04-05 12:13:19,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-04-05 12:13:19,088 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-04-05 12:13:19,088 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-04-05 12:13:19,088 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-04-05 12:13:19,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-04-05 12:13:19,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-04-05 12:13:19,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-04-05 12:13:19,092 INFO L153 SettingsManager]: * Use SBE=true [2024-04-05 12:13:19,093 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-04-05 12:13:19,093 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-04-05 12:13:19,094 INFO L153 SettingsManager]: * sizeof long=4 [2024-04-05 12:13:19,094 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-04-05 12:13:19,094 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-04-05 12:13:19,094 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-04-05 12:13:19,094 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-04-05 12:13:19,094 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-04-05 12:13:19,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-04-05 12:13:19,095 INFO L153 SettingsManager]: * sizeof long double=12 [2024-04-05 12:13:19,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-04-05 12:13:19,095 INFO L153 SettingsManager]: * Use constant arrays=true [2024-04-05 12:13:19,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-04-05 12:13:19,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-04-05 12:13:19,096 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-04-05 12:13:19,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-04-05 12:13:19,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-04-05 12:13:19,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-04-05 12:13:19,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-04-05 12:13:19,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-04-05 12:13:19,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-04-05 12:13:19,097 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-04-05 12:13:19,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-04-05 12:13:19,098 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-04-05 12:13:19,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-04-05 12:13:19,098 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-04-05 12:13:19,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> DFS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> DEFAULT Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: use limited checks (recommended for DFS) -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Limit for limited checks -> 2 [2024-04-05 12:13:19,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-04-05 12:13:19,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-04-05 12:13:19,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-04-05 12:13:19,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-04-05 12:13:19,339 INFO L274 PluginConnector]: CDTParser initialized [2024-04-05 12:13:19,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c [2024-04-05 12:13:20,319 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-04-05 12:13:20,483 INFO L384 CDTParser]: Found 1 translation units. [2024-04-05 12:13:20,484 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c [2024-04-05 12:13:20,489 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/282324c77/d97145301e684f7788f3b5df4887d2ec/FLAG768fed02e [2024-04-05 12:13:20,498 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/282324c77/d97145301e684f7788f3b5df4887d2ec [2024-04-05 12:13:20,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-04-05 12:13:20,501 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-04-05 12:13:20,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-04-05 12:13:20,503 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-04-05 12:13:20,507 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-04-05 12:13:20,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 12:13:20" (1/1) ... [2024-04-05 12:13:20,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eeeecdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20, skipping insertion in model container [2024-04-05 12:13:20,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 12:13:20" (1/1) ... [2024-04-05 12:13:20,529 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-04-05 12:13:20,643 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-mult-equiv.wvr.c[2591,2604] [2024-04-05 12:13:20,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-04-05 12:13:20,653 INFO L202 MainTranslator]: Completed pre-run [2024-04-05 12:13:20,667 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-mult-equiv.wvr.c[2591,2604] [2024-04-05 12:13:20,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-04-05 12:13:20,673 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2024-04-05 12:13:20,673 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2024-04-05 12:13:20,678 INFO L206 MainTranslator]: Completed translation [2024-04-05 12:13:20,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20 WrapperNode [2024-04-05 12:13:20,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-04-05 12:13:20,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-04-05 12:13:20,679 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-04-05 12:13:20,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-04-05 12:13:20,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20" (1/1) ... [2024-04-05 12:13:20,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20" (1/1) ... [2024-04-05 12:13:20,702 INFO L138 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-04-05 12:13:20,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-04-05 12:13:20,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-04-05 12:13:20,702 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-04-05 12:13:20,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-04-05 12:13:20,712 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20" (1/1) ... [2024-04-05 12:13:20,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20" (1/1) ... [2024-04-05 12:13:20,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20" (1/1) ... [2024-04-05 12:13:20,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20" (1/1) ... [2024-04-05 12:13:20,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20" (1/1) ... [2024-04-05 12:13:20,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20" (1/1) ... [2024-04-05 12:13:20,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20" (1/1) ... [2024-04-05 12:13:20,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20" (1/1) ... [2024-04-05 12:13:20,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-04-05 12:13:20,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-04-05 12:13:20,732 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-04-05 12:13:20,732 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-04-05 12:13:20,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20" (1/1) ... [2024-04-05 12:13:20,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-04-05 12:13:20,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 12:13:20,764 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 12:13:20,782 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 12:13:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-04-05 12:13:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-04-05 12:13:20,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-04-05 12:13:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-04-05 12:13:20,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-04-05 12:13:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-04-05 12:13:20,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-04-05 12:13:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-04-05 12:13:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-04-05 12:13:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-04-05 12:13:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-04-05 12:13:20,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-04-05 12:13:20,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-04-05 12:13:20,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-04-05 12:13:20,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-04-05 12:13:20,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-04-05 12:13:20,807 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 12:13:20,885 INFO L241 CfgBuilder]: Building ICFG [2024-04-05 12:13:20,890 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-04-05 12:13:21,165 INFO L282 CfgBuilder]: Performing block encoding [2024-04-05 12:13:21,200 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-04-05 12:13:21,200 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2024-04-05 12:13:21,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 12:13:21 BoogieIcfgContainer [2024-04-05 12:13:21,201 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-04-05 12:13:21,203 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-04-05 12:13:21,203 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-04-05 12:13:21,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-04-05 12:13:21,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 12:13:20" (1/3) ... [2024-04-05 12:13:21,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3872431e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 12:13:21, skipping insertion in model container [2024-04-05 12:13:21,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:13:20" (2/3) ... [2024-04-05 12:13:21,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3872431e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 12:13:21, skipping insertion in model container [2024-04-05 12:13:21,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 12:13:21" (3/3) ... [2024-04-05 12:13:21,207 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-equiv.wvr.c [2024-04-05 12:13:21,212 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-04-05 12:13:21,219 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-04-05 12:13:21,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-04-05 12:13:21,219 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-04-05 12:13:21,263 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-04-05 12:13:21,292 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-04-05 12:13:21,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-04-05 12:13:21,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 12:13:21,295 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 12:13:21,297 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 12:13:21,338 INFO L184 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-04-05 12:13:21,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 12:13:21,347 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-04-05 12:13:21,352 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;@74014fd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=2, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123 [2024-04-05 12:13:21,352 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-04-05 12:13:22,868 INFO L85 PathProgramCache]: Analyzing trace with hash -319144639, now seen corresponding path program 1 times [2024-04-05 12:13:22,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 12:13:22,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 12:13:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-05 12:13:23,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-04-05 12:13:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-05 12:13:23,427 INFO L85 PathProgramCache]: Analyzing trace with hash 444321258, now seen corresponding path program 2 times [2024-04-05 12:13:23,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 12:13:23,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 12:13:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-05 12:13:23,458 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-04-05 12:13:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-05 12:13:23,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1540910019, now seen corresponding path program 1 times [2024-04-05 12:13:23,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 12:13:23,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 12:13:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 12:13:24,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-04-05 12:13:24,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 12:13:24,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 12:13:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 12:13:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-04-05 12:13:24,494 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 12:13:24,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 12:13:24,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1121987728, now seen corresponding path program 1 times [2024-04-05 12:13:24,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 12:13:24,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130215406] [2024-04-05 12:13:24,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 12:13:24,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 12:13:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 12:13:24,530 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-04-05 12:13:24,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 12:13:24,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130215406] [2024-04-05 12:13:24,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130215406] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-05 12:13:24,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-05 12:13:24,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-04-05 12:13:24,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398636594] [2024-04-05 12:13:24,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-05 12:13:24,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-04-05 12:13:24,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 12:13:24,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-04-05 12:13:24,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-04-05 12:13:24,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:13:24,555 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 12:13:24,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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 12:13:24,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:13:24,742 INFO L85 PathProgramCache]: Analyzing trace with hash 444321258, now seen corresponding path program 3 times [2024-04-05 12:13:24,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 12:13:24,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 12:13:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-05 12:13:24,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-04-05 12:13:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-05 12:13:24,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:13:24,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable5 [2024-04-05 12:13:24,786 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 12:13:24,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 12:13:24,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1005987980, now seen corresponding path program 1 times [2024-04-05 12:13:24,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 12:13:24,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96291233] [2024-04-05 12:13:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 12:13:24,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 12:13:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 12:13:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-04-05 12:13:24,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 12:13:24,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96291233] [2024-04-05 12:13:24,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96291233] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-05 12:13:24,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-05 12:13:24,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-04-05 12:13:24,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651946209] [2024-04-05 12:13:24,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-05 12:13:24,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-04-05 12:13:24,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 12:13:24,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-04-05 12:13:24,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-04-05 12:13:24,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:13:24,981 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 12:13:24,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 12:13:24,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:13:24,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:13:25,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:13:25,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-04-05 12:13:25,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-04-05 12:13:25,076 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 12:13:25,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 12:13:25,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1498311593, now seen corresponding path program 1 times [2024-04-05 12:13:25,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 12:13:25,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623493124] [2024-04-05 12:13:25,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 12:13:25,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 12:13:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 12:13:26,245 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-05 12:13:26,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 12:13:26,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623493124] [2024-04-05 12:13:26,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623493124] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-05 12:13:26,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862395223] [2024-04-05 12:13:26,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 12:13:26,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 12:13:26,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 12:13:26,298 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 12:13:26,320 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 12:13:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 12:13:26,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2024-04-05 12:13:26,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-05 12:13:27,442 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-04-05 12:13:27,442 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-05 12:13:30,976 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-05 12:13:30,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862395223] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-05 12:13:30,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-05 12:13:30,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 35 [2024-04-05 12:13:30,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849460329] [2024-04-05 12:13:30,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-05 12:13:30,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-04-05 12:13:30,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 12:13:30,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-04-05 12:13:30,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=1028, Unknown=1, NotChecked=0, Total=1190 [2024-04-05 12:13:30,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:13:30,980 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 12:13:30,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.228571428571429) internal successors, (148), 35 states have internal predecessors, (148), 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 12:13:30,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:13:30,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-04-05 12:13:30,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:13:44,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-04-05 12:13:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:13:48,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-04-05 12:13:48,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-04-05 12:13:48,668 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 12:13:48,864 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,SelfDestructingSolverStorable7 [2024-04-05 12:13:48,864 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 12:13:48,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 12:13:48,866 INFO L85 PathProgramCache]: Analyzing trace with hash -541022233, now seen corresponding path program 2 times [2024-04-05 12:13:48,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 12:13:48,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572436256] [2024-04-05 12:13:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 12:13:48,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 12:13:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 12:13:55,538 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 54 proven. 196 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-04-05 12:13:55,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 12:13:55,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572436256] [2024-04-05 12:13:55,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572436256] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-05 12:13:55,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202763877] [2024-04-05 12:13:55,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-04-05 12:13:55,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 12:13:55,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 12:13:55,541 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 12:13:55,542 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 12:13:55,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-04-05 12:13:55,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-05 12:13:55,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 13 conjunts are in the unsatisfiable core [2024-04-05 12:13:55,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-05 12:13:56,161 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 81 proven. 49 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-04-05 12:13:56,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-05 12:13:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 86 proven. 1 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-04-05 12:13:56,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202763877] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-05 12:13:56,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-05 12:13:56,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 9, 6] total 59 [2024-04-05 12:13:56,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907233643] [2024-04-05 12:13:56,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-05 12:13:56,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-04-05 12:13:56,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 12:13:56,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-04-05 12:13:56,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=3198, Unknown=0, NotChecked=0, Total=3422 [2024-04-05 12:13:56,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:13:56,431 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 12:13:56,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 3.5084745762711864) internal successors, (207), 59 states have internal predecessors, (207), 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 12:13:56,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:13:56,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-04-05 12:13:56,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2024-04-05 12:13:56,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:14:11,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:14:11,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-04-05 12:14:11,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-04-05 12:14:11,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2024-04-05 12:14:11,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-04-05 12:14:11,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 12:14:11,991 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 12:14:11,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 12:14:11,992 INFO L85 PathProgramCache]: Analyzing trace with hash 246811261, now seen corresponding path program 3 times [2024-04-05 12:14:11,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 12:14:11,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666757225] [2024-04-05 12:14:11,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 12:14:11,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 12:14:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 12:14:12,386 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 87 proven. 3 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-04-05 12:14:12,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 12:14:12,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666757225] [2024-04-05 12:14:12,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666757225] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-05 12:14:12,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601073007] [2024-04-05 12:14:12,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-04-05 12:14:12,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 12:14:12,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 12:14:12,391 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 12:14:12,393 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 12:14:12,513 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-04-05 12:14:12,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-05 12:14:12,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 18 conjunts are in the unsatisfiable core [2024-04-05 12:14:12,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-05 12:14:13,026 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 99 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-04-05 12:14:13,026 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-05 12:14:13,285 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 86 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-04-05 12:14:13,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601073007] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-05 12:14:13,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-05 12:14:13,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 10] total 25 [2024-04-05 12:14:13,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260454473] [2024-04-05 12:14:13,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-05 12:14:13,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-04-05 12:14:13,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 12:14:13,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-04-05 12:14:13,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2024-04-05 12:14:13,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:14:13,287 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 12:14:13,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.6) internal successors, (140), 25 states have internal predecessors, (140), 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 12:14:13,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:14:13,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-04-05 12:14:13,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2024-04-05 12:14:13,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2024-04-05 12:14:13,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:14:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:14:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-04-05 12:14:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-04-05 12:14:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2024-04-05 12:14:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-04-05 12:14:22,632 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 12:14:22,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 12:14:22,828 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 12:14:22,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-05 12:14:22,828 INFO L85 PathProgramCache]: Analyzing trace with hash 308048458, now seen corresponding path program 4 times [2024-04-05 12:14:22,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-05 12:14:22,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204674841] [2024-04-05 12:14:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-05 12:14:22,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-05 12:14:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-05 12:14:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 156 proven. 115 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-04-05 12:14:24,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-05 12:14:24,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204674841] [2024-04-05 12:14:24,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204674841] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-05 12:14:24,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736535349] [2024-04-05 12:14:24,553 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-04-05 12:14:24,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-05 12:14:24,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-05 12:14:24,554 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 12:14:24,556 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 12:14:24,653 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-04-05 12:14:24,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-05 12:14:24,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 72 conjunts are in the unsatisfiable core [2024-04-05 12:14:24,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-05 12:16:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 156 proven. 115 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-04-05 12:16:24,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-05 12:16:34,461 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 315 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-05 12:16:34,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736535349] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-05 12:16:34,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-05 12:16:34,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 33, 51] total 102 [2024-04-05 12:16:34,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862119806] [2024-04-05 12:16:34,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-05 12:16:34,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2024-04-05 12:16:34,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-05 12:16:34,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2024-04-05 12:16:34,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1583, Invalid=8709, Unknown=10, NotChecked=0, Total=10302 [2024-04-05 12:16:34,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:16:34,466 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-05 12:16:34,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 2.803921568627451) internal successors, (286), 102 states have internal predecessors, (286), 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 12:16:34,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:16:34,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-04-05 12:16:34,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2024-04-05 12:16:34,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2024-04-05 12:16:34,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2024-04-05 12:16:34,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-05 12:17:03,044 WARN L293 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 121 DAG size of output: 99 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-04-05 12:17:46,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-04-05 12:17:59,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-04-05 12:18:15,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-04-05 12:18:34,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-04-05 12:19:21,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-04-05 12:19:28,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-04-05 12:20:14,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-04-05 12:20:20,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-04-05 12:20:49,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-04-05 12:21:00,562 WARN L293 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 117 DAG size of output: 51 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-04-05 12:21:08,426 WARN L293 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 222 DAG size of output: 31 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-04-05 12:21:25,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-04-05 12:22:54,022 WARN L293 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 200 DAG size of output: 116 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-04-05 12:25:16,539 WARN L293 SmtUtils]: Spent 8.65s on a formula simplification. DAG size of input: 215 DAG size of output: 183 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-04-05 12:25:34,396 WARN L293 SmtUtils]: Spent 13.17s on a formula simplification. DAG size of input: 229 DAG size of output: 185 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-04-05 12:25:52,032 WARN L293 SmtUtils]: Spent 11.31s on a formula simplification. DAG size of input: 237 DAG size of output: 184 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-04-05 12:25:54,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-04-05 12:26:08,896 WARN L293 SmtUtils]: Spent 8.65s on a formula simplification. DAG size of input: 144 DAG size of output: 120 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-04-05 12:26:19,458 WARN L293 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 152 DAG size of output: 113 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-04-05 12:26:21,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-04-05 12:26:53,036 WARN L293 SmtUtils]: Spent 19.74s on a formula simplification. DAG size of input: 183 DAG size of output: 151 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-04-05 12:27:19,204 WARN L293 SmtUtils]: Spent 13.05s on a formula simplification. DAG size of input: 176 DAG size of output: 154 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2024-04-05 12:27:42,654 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-04-05 12:27:42,654 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-04-05 12:27:42,654 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-04-05 12:27:42,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-04-05 12:27:42,869 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,SelfDestructingSolverStorable10 [2024-04-05 12:27:42,870 WARN L619 AbstractCegarLoop]: Verification canceled: while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-14-3-4-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ∧-2-1 context. [2024-04-05 12:27:42,872 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-04-05 12:27:42,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-04-05 12:27:42,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-04-05 12:27:42,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-04-05 12:27:42,876 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1] [2024-04-05 12:27:42,878 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-04-05 12:27:42,879 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2024-04-05 12:27:42,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 12:27:42 BasicIcfg [2024-04-05 12:27:42,881 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-04-05 12:27:42,881 INFO L158 Benchmark]: Toolchain (without parser) took 862380.03ms. Allocated memory was 270.5MB in the beginning and 654.3MB in the end (delta: 383.8MB). Free memory was 199.6MB in the beginning and 293.5MB in the end (delta: -93.9MB). Peak memory consumption was 290.5MB. Max. memory is 8.0GB. [2024-04-05 12:27:42,881 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 173.0MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 8.0GB. [2024-04-05 12:27:42,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.30ms. Allocated memory is still 270.5MB. Free memory was 199.4MB in the beginning and 187.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-04-05 12:27:42,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.92ms. Allocated memory is still 270.5MB. Free memory was 187.7MB in the beginning and 186.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-04-05 12:27:42,882 INFO L158 Benchmark]: Boogie Preprocessor took 29.26ms. Allocated memory is still 270.5MB. Free memory was 186.2MB in the beginning and 184.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-04-05 12:27:42,882 INFO L158 Benchmark]: RCFGBuilder took 469.16ms. Allocated memory is still 270.5MB. Free memory was 184.7MB in the beginning and 228.8MB in the end (delta: -44.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-04-05 12:27:42,882 INFO L158 Benchmark]: TraceAbstraction took 861677.74ms. Allocated memory was 270.5MB in the beginning and 654.3MB in the end (delta: 383.8MB). Free memory was 227.8MB in the beginning and 293.5MB in the end (delta: -65.7MB). Peak memory consumption was 319.1MB. Max. memory is 8.0GB. [2024-04-05 12:27:42,883 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 173.0MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 175.30ms. Allocated memory is still 270.5MB. Free memory was 199.4MB in the beginning and 187.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.92ms. Allocated memory is still 270.5MB. Free memory was 187.7MB in the beginning and 186.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.26ms. Allocated memory is still 270.5MB. Free memory was 186.2MB in the beginning and 184.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 469.16ms. Allocated memory is still 270.5MB. Free memory was 184.7MB in the beginning and 228.8MB in the end (delta: -44.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 861677.74ms. Allocated memory was 270.5MB in the beginning and 654.3MB in the end (delta: 383.8MB). Free memory was 227.8MB in the beginning and 293.5MB in the end (delta: -65.7MB). Peak memory consumption was 319.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 19592, independent: 16271, independent conditional: 15337, independent unconditional: 934, dependent: 3287, dependent conditional: 2858, dependent unconditional: 429, unknown: 34, unknown conditional: 34, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16406, independent: 16271, independent conditional: 15337, independent unconditional: 934, dependent: 101, dependent conditional: 94, dependent unconditional: 7, unknown: 34, unknown conditional: 34, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16406, independent: 16271, independent conditional: 15337, independent unconditional: 934, dependent: 101, dependent conditional: 94, dependent unconditional: 7, unknown: 34, unknown conditional: 34, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 16406, independent: 16271, independent conditional: 15337, independent unconditional: 934, dependent: 101, dependent conditional: 94, dependent unconditional: 7, unknown: 34, unknown conditional: 34, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16839, independent: 16271, independent conditional: 2293, independent unconditional: 13978, dependent: 480, dependent conditional: 270, dependent unconditional: 210, unknown: 88, unknown conditional: 48, unknown unconditional: 40] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16839, independent: 16271, independent conditional: 2188, independent unconditional: 14083, dependent: 480, dependent conditional: 154, dependent unconditional: 326, unknown: 88, unknown conditional: 26, unknown unconditional: 62] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16839, independent: 16271, independent conditional: 2188, independent unconditional: 14083, dependent: 480, dependent conditional: 154, dependent unconditional: 326, unknown: 88, unknown conditional: 26, unknown unconditional: 62] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 483, independent: 433, independent conditional: 20, independent unconditional: 413, dependent: 45, dependent conditional: 40, dependent unconditional: 5, unknown: 5, unknown conditional: 4, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 483, independent: 433, independent conditional: 0, independent unconditional: 433, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 50, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 45, dependent conditional: 40, dependent unconditional: 5, unknown: 5, unknown conditional: 4, unknown unconditional: 1] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 50, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 45, dependent conditional: 40, dependent unconditional: 5, unknown: 5, unknown conditional: 4, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5683, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 615, dependent conditional: 561, dependent unconditional: 54, unknown: 5067, unknown conditional: 4036, unknown unconditional: 1031] , Protected Queries: 0 ], Cache Queries: [ total: 16839, independent: 15838, independent conditional: 2168, independent unconditional: 13670, dependent: 435, dependent conditional: 114, dependent unconditional: 321, unknown: 566, unknown conditional: 86, unknown unconditional: 480] , Statistics on independence cache: Total cache size (in pairs): 478, Positive cache size: 433, Positive conditional cache size: 20, Positive unconditional cache size: 413, Negative cache size: 45, Negative conditional cache size: 40, Negative unconditional cache size: 5, Unknown cache size: 5, Unknown conditional cache size: 4, Unknown unconditional cache size: 1, Eliminated conditions: 243, Maximal queried relation: 4, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16839, independent: 16271, independent conditional: 2293, independent unconditional: 13978, dependent: 480, dependent conditional: 270, dependent unconditional: 210, unknown: 88, unknown conditional: 48, unknown unconditional: 40] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16839, independent: 16271, independent conditional: 2188, independent unconditional: 14083, dependent: 480, dependent conditional: 154, dependent unconditional: 326, unknown: 88, unknown conditional: 26, unknown unconditional: 62] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16839, independent: 16271, independent conditional: 2188, independent unconditional: 14083, dependent: 480, dependent conditional: 154, dependent unconditional: 326, unknown: 88, unknown conditional: 26, unknown unconditional: 62] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 483, independent: 433, independent conditional: 20, independent unconditional: 413, dependent: 45, dependent conditional: 40, dependent unconditional: 5, unknown: 5, unknown conditional: 4, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 483, independent: 433, independent conditional: 0, independent unconditional: 433, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 50, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 45, dependent conditional: 40, dependent unconditional: 5, unknown: 5, unknown conditional: 4, unknown unconditional: 1] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 50, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 45, dependent conditional: 40, dependent unconditional: 5, unknown: 5, unknown conditional: 4, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5683, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 615, dependent conditional: 561, dependent unconditional: 54, unknown: 5067, unknown conditional: 4036, unknown unconditional: 1031] , Protected Queries: 0 ], Cache Queries: [ total: 16839, independent: 15838, independent conditional: 2168, independent unconditional: 13670, dependent: 435, dependent conditional: 114, dependent unconditional: 321, unknown: 566, unknown conditional: 86, unknown unconditional: 480] , Statistics on independence cache: Total cache size (in pairs): 478, Positive cache size: 433, Positive conditional cache size: 20, Positive unconditional cache size: 413, Negative cache size: 45, Negative conditional cache size: 40, Negative unconditional cache size: 5, Unknown cache size: 5, Unknown conditional cache size: 4, Unknown unconditional cache size: 1, Eliminated conditions: 243 ], Independence queries for same thread: 3186 - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-14-3-4-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ∧-2-1 context. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-14-3-4-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ∧-2-1 context. - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-14-3-4-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ∧-2-1 context. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-14-3-4-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ∧-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 111 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 861.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 714.0s, 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: 470, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 145.7s InterpolantComputationTime, 1101 NumberOfCodeBlocks, 1069 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1560 ConstructedInterpolants, 0 QuantifiedInterpolants, 15983 SizeOfPredicates, 39 NumberOfNonLiveVariables, 990 ConjunctsInSsa, 121 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 1426/2268 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