/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/match-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 21:02:54,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 21:02:54,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 21:02:54,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 21:02:54,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 21:02:54,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 21:02:54,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 21:02:54,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 21:02:54,973 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 21:02:54,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 21:02:54,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 21:02:54,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 21:02:54,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 21:02:54,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 21:02:54,975 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 21:02:54,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 21:02:54,975 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 21:02:54,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 21:02:54,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 21:02:54,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 21:02:54,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 21:02:54,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 21:02:54,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 21:02:54,976 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 21:02:54,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 21:02:54,977 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 21:02:54,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 21:02:54,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 21:02:54,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 21:02:54,977 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 21:02:54,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 21:02:54,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 21:02:54,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 21:02:54,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 21:02:54,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 21:02:54,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 21:02:54,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 21:02:54,979 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 21:02:54,979 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 21:02:54,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 21:02:54,980 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 21:02:55,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 21:02:55,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 21:02:55,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 21:02:55,213 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 21:02:55,214 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 21:02:55,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/match-subst.wvr.bpl [2022-03-15 21:02:55,215 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/match-subst.wvr.bpl' [2022-03-15 21:02:55,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 21:02:55,239 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 21:02:55,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 21:02:55,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 21:02:55,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 21:02:55,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:55" (1/1) ... [2022-03-15 21:02:55,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:55" (1/1) ... [2022-03-15 21:02:55,261 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 21:02:55,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 21:02:55,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 21:02:55,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 21:02:55,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 21:02:55,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:55" (1/1) ... [2022-03-15 21:02:55,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:55" (1/1) ... [2022-03-15 21:02:55,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:55" (1/1) ... [2022-03-15 21:02:55,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:55" (1/1) ... [2022-03-15 21:02:55,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:55" (1/1) ... [2022-03-15 21:02:55,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:55" (1/1) ... [2022-03-15 21:02:55,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:55" (1/1) ... [2022-03-15 21:02:55,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 21:02:55,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 21:02:55,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 21:02:55,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 21:02:55,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:55" (1/1) ... [2022-03-15 21:02:55,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 21:02:55,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 21:02:55,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 21:02:55,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 21:02:55,348 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-15 21:02:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 21:02:55,349 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 21:02:55,349 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-15 21:02:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 21:02:55,349 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 21:02:55,349 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 21:02:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 21:02:55,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 21:02:55,350 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-15 21:02:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 21:02:55,350 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 21:02:55,351 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 21:02:55,390 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 21:02:55,391 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 21:02:55,514 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 21:02:55,519 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 21:02:55,519 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 21:02:55,521 INFO L202 PluginConnector]: Adding new model match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 09:02:55 BoogieIcfgContainer [2022-03-15 21:02:55,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 21:02:55,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 21:02:55,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 21:02:55,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 21:02:55,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:55" (1/2) ... [2022-03-15 21:02:55,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aca0982 and model type match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 09:02:55, skipping insertion in model container [2022-03-15 21:02:55,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 09:02:55" (2/2) ... [2022-03-15 21:02:55,536 INFO L111 eAbstractionObserver]: Analyzing ICFG match-subst.wvr.bpl [2022-03-15 21:02:55,540 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 21:02:55,541 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 21:02:55,541 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 21:02:55,541 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 21:02:55,598 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-15 21:02:55,643 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 21:02:55,652 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 21:02:55,652 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 21:02:55,665 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 21:02:55,674 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 19 transitions, 62 flow [2022-03-15 21:02:55,677 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 19 transitions, 62 flow [2022-03-15 21:02:55,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 62 flow [2022-03-15 21:02:55,719 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2022-03-15 21:02:55,720 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-03-15 21:02:55,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-03-15 21:02:55,725 INFO L116 LiptonReduction]: Number of co-enabled transitions 48 [2022-03-15 21:02:55,948 INFO L131 LiptonReduction]: Checked pairs total: 48 [2022-03-15 21:02:55,948 INFO L133 LiptonReduction]: Total number of compositions: 6 [2022-03-15 21:02:55,956 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 14 transitions, 52 flow [2022-03-15 21:02:55,976 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 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) [2022-03-15 21:02:55,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 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) [2022-03-15 21:02:55,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-03-15 21:02:55,984 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 21:02:55,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 21:02:55,985 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 21:02:55,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 21:02:55,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1536959038, now seen corresponding path program 1 times [2022-03-15 21:02:56,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 21:02:56,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960246003] [2022-03-15 21:02:56,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 21:02:56,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 21:02:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 21:02:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 21:02:57,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 21:02:57,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960246003] [2022-03-15 21:02:57,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960246003] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 21:02:57,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 21:02:57,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 21:02:57,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [539485325] [2022-03-15 21:02:57,252 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 21:02:57,258 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 21:02:57,271 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 37 transitions. [2022-03-15 21:02:57,272 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 21:03:03,793 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [83#(and (or (not (= result_9 0)) (< (+ seq_2_start_8 seq_1_start_7) (+ seq_2_start_5 seq_1_start_4)) (<= result_10 0) (< score_3 score_6)) (or (not (= result_9 0)) (<= (+ seq_2_start_5 seq_1_start_4) (+ seq_2_start_8 seq_1_start_7)) (<= 1 result_10) (< score_6 score_3)) (or (not (= result_9 0)) (<= 0 result_10) (< score_6 score_3) (< (+ seq_2_start_5 seq_1_start_4) (+ seq_2_start_8 seq_1_start_7))) (or (not (= result_9 0)) (<= score_3 score_6) (<= (+ result_10 1) 0)) (or (not (= result_9 0)) (<= (+ seq_2_start_8 seq_1_start_7) (+ seq_2_start_5 seq_1_start_4)) (< score_3 score_6) (<= (+ result_10 1) 0)) (or (not (< score_3 score_6)) (not (= result_9 0)) (<= 1 result_10))), 85#(and (or (not (< (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_8 seq_1_start_7))) (not (= result_9 0)) (< (+ seq_2_start_8 seq_1_start_7) (+ seq_2_start_5 seq_1_start_4)) (< score_6 score_3) (< (+ seq_2_start_5 seq_1_start_4) (+ seq_2_start_8 seq_1_start_7)) (< score_3 score_6)) (or (< (+ seq_2_start_8 seq_1_start_7) (+ seq_2_start_2 seq_1_start_1)) (not (= result_9 0)) (< score_6 score_3) (not (< (+ seq_2_start_8 seq_1_start_7) (+ seq_2_start_5 seq_1_start_4))) (< score_0 score_6)) (or (not (= result_9 0)) (<= score_6 score_3) (<= score_0 score_6)) (or (not (= result_9 0)) (< score_6 score_0) (<= (+ seq_2_start_8 seq_1_start_7) (+ seq_2_start_5 seq_1_start_4)) (< (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_8 seq_1_start_7)) (< score_3 score_6)) (or (not (= result_9 0)) (<= score_6 score_0) (<= score_3 score_6)) (or (not (= result_9 0)) (< score_6 score_0) (< (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_8 seq_1_start_7)) (<= score_3 score_6)) (or (not (= result_9 0)) (< (+ seq_2_start_8 seq_1_start_7) (+ seq_2_start_5 seq_1_start_4)) (< score_6 score_3) (<= (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_8 seq_1_start_7)) (< (+ seq_2_start_5 seq_1_start_4) (+ seq_2_start_8 seq_1_start_7)) (< score_3 score_6)) (or (not (< score_3 score_6)) (< (+ seq_2_start_8 seq_1_start_7) (+ seq_2_start_2 seq_1_start_1)) (not (= result_9 0)) (< score_0 score_6)) (or (not (= result_9 0)) (< score_6 score_3) (< (+ seq_2_start_5 seq_1_start_4) (+ seq_2_start_8 seq_1_start_7)) (<= score_0 score_6)) (or (not (= result_9 0)) (< (+ seq_2_start_8 seq_1_start_7) (+ seq_2_start_5 seq_1_start_4)) (<= score_6 score_0) (< score_3 score_6))), 86#(and (or (< (+ seq_2_start_8 seq_1_start_7) (+ seq_2_start_2 seq_1_start_1)) (< (+ seq_2_start_5 seq_1_start_4) (+ seq_2_start_2 seq_1_start_1)) (< (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_5 seq_1_start_4)) (< score_3 score_0) (<= result_11 0) (< score_0 score_6) (< score_0 score_3)) (or (not (< (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_8 seq_1_start_7))) (< (+ seq_2_start_5 seq_1_start_4) (+ seq_2_start_2 seq_1_start_1)) (< (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_5 seq_1_start_4)) (<= (+ result_11 1) 0) (< score_3 score_0) (< score_0 score_6) (< score_0 score_3)) (or (<= score_6 score_0) (<= 1 result_11) (< (+ seq_2_start_5 seq_1_start_4) (+ seq_2_start_2 seq_1_start_1)) (< (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_5 seq_1_start_4)) (< score_3 score_0) (< score_0 score_3)) (or (< (+ seq_2_start_5 seq_1_start_4) (+ seq_2_start_2 seq_1_start_1)) (< (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_5 seq_1_start_4)) (<= (+ result_11 1) 0) (< score_3 score_0) (<= score_0 score_6) (< score_0 score_3)) (or (< (+ seq_2_start_5 seq_1_start_4) (+ seq_2_start_2 seq_1_start_1)) (< (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_5 seq_1_start_4)) (< score_3 score_0) (<= 0 result_11) (< score_6 score_0) (< (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_8 seq_1_start_7)) (< score_0 score_3)) (or (<= 1 result_11) (< (+ seq_2_start_5 seq_1_start_4) (+ seq_2_start_2 seq_1_start_1)) (< (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_5 seq_1_start_4)) (<= (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_8 seq_1_start_7)) (< score_3 score_0) (< score_6 score_0) (< score_0 score_3))), 84#(and (or (not (= result_9 0)) (<= score_6 score_0) (<= 1 result_11)) (or (not (= result_9 0)) (<= 1 result_11) (<= (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_8 seq_1_start_7)) (< score_6 score_0)) (or (not (= result_9 0)) (<= (+ result_11 1) 0) (<= score_0 score_6)) (or (< (+ seq_2_start_8 seq_1_start_7) (+ seq_2_start_2 seq_1_start_1)) (not (= result_9 0)) (<= result_11 0) (< score_0 score_6)) (or (not (= result_9 0)) (<= 0 result_11) (< score_6 score_0) (< (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_8 seq_1_start_7))) (or (not (< (+ seq_2_start_2 seq_1_start_1) (+ seq_2_start_8 seq_1_start_7))) (not (= result_9 0)) (<= (+ result_11 1) 0) (< score_0 score_6)))] [2022-03-15 21:03:03,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 21:03:03,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 21:03:03,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 21:03:03,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 21:03:03,814 INFO L87 Difference]: Start difference. First operand has 23 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 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) Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 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) [2022-03-15 21:03:04,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 21:03:04,941 INFO L93 Difference]: Finished difference Result 22 states and 36 transitions. [2022-03-15 21:03:04,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 21:03:04,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 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) Word has length 10 [2022-03-15 21:03:04,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 21:03:04,948 INFO L225 Difference]: With dead ends: 22 [2022-03-15 21:03:04,949 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 21:03:04,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-03-15 21:03:04,955 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 21:03:04,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 21:03:04,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 21:03:04,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 21:03:04,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-03-15 21:03:04,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 21:03:04,974 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-03-15 21:03:04,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 21:03:04,974 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 21:03:04,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 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) [2022-03-15 21:03:04,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 21:03:04,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 21:03:04,977 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-15 21:03:04,977 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-15 21:03:04,978 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-15 21:03:04,978 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-15 21:03:04,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 21:03:04,985 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-03-15 21:03:04,991 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 21:03:04,992 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 21:03:04,997 INFO L202 PluginConnector]: Adding new model match-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 09:03:04 BasicIcfg [2022-03-15 21:03:04,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 21:03:04,998 INFO L158 Benchmark]: Toolchain (without parser) took 9759.46ms. Allocated memory was 189.8MB in the beginning and 324.0MB in the end (delta: 134.2MB). Free memory was 147.3MB in the beginning and 132.2MB in the end (delta: 15.0MB). Peak memory consumption was 150.2MB. Max. memory is 8.0GB. [2022-03-15 21:03:04,999 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 189.8MB. Free memory is still 148.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 21:03:04,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.86ms. Allocated memory is still 189.8MB. Free memory was 147.2MB in the beginning and 145.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 21:03:04,999 INFO L158 Benchmark]: Boogie Preprocessor took 10.43ms. Allocated memory is still 189.8MB. Free memory was 145.6MB in the beginning and 144.7MB in the end (delta: 909.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 21:03:05,000 INFO L158 Benchmark]: RCFGBuilder took 246.38ms. Allocated memory is still 189.8MB. Free memory was 144.7MB in the beginning and 135.7MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-15 21:03:05,000 INFO L158 Benchmark]: TraceAbstraction took 9475.32ms. Allocated memory was 189.8MB in the beginning and 324.0MB in the end (delta: 134.2MB). Free memory was 135.2MB in the beginning and 132.2MB in the end (delta: 3.0MB). Peak memory consumption was 137.6MB. Max. memory is 8.0GB. [2022-03-15 21:03:05,002 INFO L339 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 0.11ms. Allocated memory is still 189.8MB. Free memory is still 148.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.86ms. Allocated memory is still 189.8MB. Free memory was 147.2MB in the beginning and 145.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.43ms. Allocated memory is still 189.8MB. Free memory was 145.6MB in the beginning and 144.7MB in the end (delta: 909.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 246.38ms. Allocated memory is still 189.8MB. Free memory was 144.7MB in the beginning and 135.7MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 9475.32ms. Allocated memory was 189.8MB in the beginning and 324.0MB in the end (delta: 134.2MB). Free memory was 135.2MB in the beginning and 132.2MB in the end (delta: 3.0MB). Peak memory consumption was 137.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 29 PlacesBefore, 24 PlacesAfterwards, 19 TransitionsBefore, 14 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 48 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 48, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 24, unknown conditional: 0, unknown unconditional: 24] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 50]: 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 7 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 9.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 378 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 21:03:05,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...