/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 FORWARD --traceabstraction.use.limited.checks.recommended.for.dfs true --traceabstraction.limit.for.limited.checks 10 -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.conditional-comm-17da818-m [2024-05-04 09:25:14,520 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-04 09:25:14,585 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-05-04 09:25:14,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-04 09:25:14,590 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-04 09:25:14,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-04 09:25:14,612 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-04 09:25:14,613 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-04 09:25:14,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-04 09:25:14,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-04 09:25:14,617 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-04 09:25:14,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-04 09:25:14,617 INFO L153 SettingsManager]: * Use SBE=true [2024-05-04 09:25:14,618 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-04 09:25:14,618 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-04 09:25:14,618 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-04 09:25:14,618 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-04 09:25:14,619 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-04 09:25:14,619 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-04 09:25:14,619 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-04 09:25:14,619 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-04 09:25:14,619 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-04 09:25:14,620 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-04 09:25:14,620 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-04 09:25:14,620 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-04 09:25:14,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-04 09:25:14,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-04 09:25:14,620 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-04 09:25:14,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-04 09:25:14,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-04 09:25:14,622 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-04 09:25:14,622 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-04 09:25:14,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-04 09:25:14,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-04 09:25:14,622 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-05-04 09:25:14,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-04 09:25:14,623 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-04 09:25:14,623 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-04 09:25:14,623 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-04 09:25:14,623 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> DFS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> FORWARD Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: use limited checks (recommended for DFS) -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Limit for limited checks -> 10 [2024-05-04 09:25:14,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-04 09:25:14,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-04 09:25:14,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-04 09:25:14,854 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-05-04 09:25:14,856 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-05-04 09:25:14,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl [2024-05-04 09:25:14,857 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl' [2024-05-04 09:25:14,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-04 09:25:14,879 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-05-04 09:25:14,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-04 09:25:14,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-04 09:25:14,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-04 09:25:14,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 09:25:14" (1/1) ... [2024-05-04 09:25:14,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 09:25:14" (1/1) ... [2024-05-04 09:25:14,945 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-05-04 09:25:14,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-04 09:25:14,960 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-04 09:25:14,961 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-04 09:25:14,961 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-04 09:25:14,968 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 09:25:14" (1/1) ... [2024-05-04 09:25:14,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 09:25:14" (1/1) ... [2024-05-04 09:25:14,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 09:25:14" (1/1) ... [2024-05-04 09:25:14,969 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 09:25:14" (1/1) ... [2024-05-04 09:25:14,971 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 09:25:14" (1/1) ... [2024-05-04 09:25:14,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 09:25:14" (1/1) ... [2024-05-04 09:25:14,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 09:25:14" (1/1) ... [2024-05-04 09:25:14,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 09:25:14" (1/1) ... [2024-05-04 09:25:14,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-04 09:25:14,975 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-04 09:25:14,975 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-04 09:25:14,975 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-04 09:25:14,976 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 09:25:14" (1/1) ... [2024-05-04 09:25:14,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-04 09:25:14,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 09:25:15,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-05-04 09:25:15,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-05-04 09:25:15,084 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2024-05-04 09:25:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-04 09:25:15,084 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-04 09:25:15,084 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2024-05-04 09:25:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-04 09:25:15,084 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-04 09:25:15,085 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-05-04 09:25:15,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-04 09:25:15,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-04 09:25:15,085 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2024-05-04 09:25:15,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-05-04 09:25:15,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-05-04 09:25:15,085 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2024-05-04 09:25:15,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-05-04 09:25:15,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-05-04 09:25:15,086 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-04 09:25:15,121 INFO L241 CfgBuilder]: Building ICFG [2024-05-04 09:25:15,123 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-04 09:25:15,196 INFO L282 CfgBuilder]: Performing block encoding [2024-05-04 09:25:15,203 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-04 09:25:15,204 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2024-05-04 09:25:15,205 INFO L201 PluginConnector]: Adding new model spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 09:25:15 BoogieIcfgContainer [2024-05-04 09:25:15,205 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-04 09:25:15,206 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-04 09:25:15,207 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-04 09:25:15,209 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-04 09:25:15,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 09:25:14" (1/2) ... [2024-05-04 09:25:15,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21bc2c08 and model type spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 09:25:15, skipping insertion in model container [2024-05-04 09:25:15,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 09:25:15" (2/2) ... [2024-05-04 09:25:15,211 INFO L112 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.bpl [2024-05-04 09:25:15,216 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-04 09:25:15,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-04 09:25:15,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-04 09:25:15,225 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-04 09:25:15,274 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-05-04 09:25:15,302 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-04 09:25:15,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-04 09:25:15,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-04 09:25:15,305 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-04 09:25:15,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-05-04 09:25:15,354 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-04 09:25:15,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 09:25:15,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-04 09:25:15,372 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;@e4af58b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=FORWARD, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=10, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-04 09:25:15,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-05-04 09:25:15,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-05-04 09:25:15,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 09:25:15,477 INFO L85 PathProgramCache]: Analyzing trace with hash -531107952, now seen corresponding path program 1 times [2024-05-04 09:25:15,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 09:25:15,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591360307] [2024-05-04 09:25:15,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 09:25:15,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 09:25:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 09:25:15,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-04 09:25:15,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 09:25:15,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591360307] [2024-05-04 09:25:15,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591360307] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 09:25:15,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 09:25:15,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-04 09:25:15,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863247485] [2024-05-04 09:25:15,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 09:25:15,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-04 09:25:15,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 09:25:15,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-04 09:25:15,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-04 09:25:15,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 09:25:15,711 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 09:25:15,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-04 09:25:15,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 09:25:16,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 09:25:16,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-04 09:25:16,697 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-05-04 09:25:16,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-04 09:25:16,698 INFO L85 PathProgramCache]: Analyzing trace with hash 477152652, now seen corresponding path program 1 times [2024-05-04 09:25:16,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-04 09:25:16,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871771175] [2024-05-04 09:25:16,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-04 09:25:16,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-04 09:25:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-04 09:25:16,748 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-04 09:25:16,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-04 09:25:16,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871771175] [2024-05-04 09:25:16,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871771175] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-04 09:25:16,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-04 09:25:16,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-04 09:25:16,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600961388] [2024-05-04 09:25:16,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-04 09:25:16,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-04 09:25:16,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-04 09:25:16,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-04 09:25:16,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-04 09:25:16,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-04 09:25:16,751 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-04 09:25:16,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-04 09:25:16,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-04 09:25:16,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-04 09:25:17,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 09:25:17,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-04 09:25:17,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2024-05-04 09:25:17,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2024-05-04 09:25:17,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-05-04 09:25:17,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-05-04 09:25:17,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-05-04 09:25:17,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-04 09:25:17,865 INFO L448 BasicCegarLoop]: Path program histogram: [1, 1] [2024-05-04 09:25:17,867 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-04 09:25:17,867 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2024-05-04 09:25:17,870 INFO L201 PluginConnector]: Adding new model spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.05 09:25:17 BasicIcfg [2024-05-04 09:25:17,870 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-04 09:25:17,872 INFO L158 Benchmark]: Toolchain (without parser) took 2991.86ms. Allocated memory was 160.4MB in the beginning and 209.7MB in the end (delta: 49.3MB). Free memory was 100.3MB in the beginning and 86.4MB in the end (delta: 13.9MB). Peak memory consumption was 63.9MB. Max. memory is 8.0GB. [2024-05-04 09:25:17,874 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 160.4MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-04 09:25:17,874 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.16ms. Allocated memory is still 160.4MB. Free memory was 100.3MB in the beginning and 138.4MB in the end (delta: -38.1MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. [2024-05-04 09:25:17,875 INFO L158 Benchmark]: Boogie Preprocessor took 13.97ms. Allocated memory is still 160.4MB. Free memory was 138.4MB in the beginning and 137.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2024-05-04 09:25:17,875 INFO L158 Benchmark]: RCFGBuilder took 229.74ms. Allocated memory is still 160.4MB. Free memory was 137.3MB in the beginning and 127.4MB in the end (delta: 9.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-05-04 09:25:17,875 INFO L158 Benchmark]: TraceAbstraction took 2663.54ms. Allocated memory was 160.4MB in the beginning and 209.7MB in the end (delta: 49.3MB). Free memory was 126.1MB in the beginning and 86.4MB in the end (delta: 39.7MB). Peak memory consumption was 89.6MB. Max. memory is 8.0GB. [2024-05-04 09:25:17,879 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09ms. Allocated memory is still 160.4MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.16ms. Allocated memory is still 160.4MB. Free memory was 100.3MB in the beginning and 138.4MB in the end (delta: -38.1MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.97ms. Allocated memory is still 160.4MB. Free memory was 138.4MB in the beginning and 137.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 229.74ms. Allocated memory is still 160.4MB. Free memory was 137.3MB in the beginning and 127.4MB in the end (delta: 9.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2663.54ms. Allocated memory was 160.4MB in the beginning and 209.7MB in the end (delta: 49.3MB). Free memory was 126.1MB in the beginning and 86.4MB in the end (delta: 39.7MB). Peak memory consumption was 89.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 75649, independent: 68172, independent conditional: 58626, independent unconditional: 9546, dependent: 7477, dependent conditional: 7011, dependent unconditional: 466, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 71012, independent: 68172, independent conditional: 58626, independent unconditional: 9546, dependent: 2840, dependent conditional: 2374, dependent unconditional: 466, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 71012, independent: 68172, independent conditional: 58626, independent unconditional: 9546, dependent: 2840, dependent conditional: 2374, dependent unconditional: 466, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 71012, independent: 68172, independent conditional: 58626, independent unconditional: 9546, dependent: 2840, dependent conditional: 2374, dependent unconditional: 466, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 75664, independent: 68172, independent conditional: 24438, independent unconditional: 43734, dependent: 7492, dependent conditional: 2896, dependent unconditional: 4596, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 75664, independent: 68172, independent conditional: 7758, independent unconditional: 60414, dependent: 7492, dependent conditional: 0, dependent unconditional: 7492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 75664, independent: 68172, independent conditional: 7758, independent unconditional: 60414, dependent: 7492, dependent conditional: 0, dependent unconditional: 7492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 360, independent: 342, independent conditional: 29, independent unconditional: 313, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 360, independent: 312, independent conditional: 0, independent unconditional: 312, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 48, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 48, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 75664, independent: 67830, independent conditional: 7729, independent unconditional: 60101, dependent: 7474, dependent conditional: 0, dependent unconditional: 7474, unknown: 360, unknown conditional: 29, unknown unconditional: 331] , Statistics on independence cache: Total cache size (in pairs): 360, Positive cache size: 342, Positive conditional cache size: 29, Positive unconditional cache size: 313, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 19576, Maximal queried relation: 1, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 75664, independent: 68172, independent conditional: 24438, independent unconditional: 43734, dependent: 7492, dependent conditional: 2896, dependent unconditional: 4596, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 75664, independent: 68172, independent conditional: 7758, independent unconditional: 60414, dependent: 7492, dependent conditional: 0, dependent unconditional: 7492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 75664, independent: 68172, independent conditional: 7758, independent unconditional: 60414, dependent: 7492, dependent conditional: 0, dependent unconditional: 7492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 360, independent: 342, independent conditional: 29, independent unconditional: 313, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 360, independent: 312, independent conditional: 0, independent unconditional: 312, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 48, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 48, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 75664, independent: 67830, independent conditional: 7729, independent unconditional: 60101, dependent: 7474, dependent conditional: 0, dependent unconditional: 7474, unknown: 360, unknown conditional: 29, unknown unconditional: 331] , Statistics on independence cache: Total cache size (in pairs): 360, Positive cache size: 342, Positive conditional cache size: 29, Positive unconditional cache size: 313, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 19576 ], Independence queries for same thread: 4637 - PositiveResult [Line: 66]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 53 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 2.2s, 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: 8, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 5/5 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, ConditionalCommutativityCheckTime: 1.2s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityConditionCalculations: 70, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-05-04 09:25:17,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-05-04 09:25:18,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...