/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy7.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 06:40:26,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 06:40:26,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 06:40:26,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 06:40:26,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 06:40:26,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 06:40:26,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 06:40:26,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 06:40:26,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 06:40:26,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 06:40:26,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 06:40:26,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 06:40:26,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 06:40:26,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 06:40:26,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 06:40:26,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 06:40:26,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 06:40:26,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-04 06:40:26,594 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 06:40:26,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 06:40:26,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 06:40:26,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 06:40:26,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 06:40:26,596 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 06:40:26,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 06:40:26,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 06:40:26,596 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 06:40:26,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 06:40:26,597 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 06:40:26,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 06:40:26,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 06:40:26,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 06:40:26,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 06:40:26,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 06:40:26,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 06:40:26,598 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 06:40:26,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 06:40:26,598 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 06:40:26,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 06:40:26,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 06:40:26,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 06:40:26,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 06:40:26,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 06:40:26,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:40:26,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 06:40:26,602 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 06:40:26,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 06:40:26,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 06:40:26,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 06:40:26,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 06:40:26,603 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 06:40:26,603 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 06:40:26,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 06:40:26,603 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 06:40:26,604 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 06:40:26,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 06:40:26,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 06:40:26,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 06:40:26,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 06:40:26,874 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 06:40:26,875 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 06:40:26,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy7.wvr.bpl [2022-03-04 06:40:26,877 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy7.wvr.bpl' [2022-03-04 06:40:26,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 06:40:26,898 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 06:40:26,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 06:40:26,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 06:40:26,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 06:40:26,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:40:26" (1/1) ... [2022-03-04 06:40:26,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:40:26" (1/1) ... [2022-03-04 06:40:26,920 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 06:40:26,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 06:40:26,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 06:40:26,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 06:40:26,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 06:40:26,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:40:26" (1/1) ... [2022-03-04 06:40:26,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:40:26" (1/1) ... [2022-03-04 06:40:26,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:40:26" (1/1) ... [2022-03-04 06:40:26,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:40:26" (1/1) ... [2022-03-04 06:40:26,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:40:26" (1/1) ... [2022-03-04 06:40:26,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:40:26" (1/1) ... [2022-03-04 06:40:26,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:40:26" (1/1) ... [2022-03-04 06:40:26,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 06:40:26,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 06:40:26,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 06:40:26,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 06:40:26,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:40:26" (1/1) ... [2022-03-04 06:40:26,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:40:26,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:40:26,969 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) [2022-03-04 06:40:26,977 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 [2022-03-04 06:40:27,002 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 06:40:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 06:40:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 06:40:27,003 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 06:40:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 06:40:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 06:40:27,004 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 06:40:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 06:40:27,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 06:40:27,005 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 06:40:27,049 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 06:40:27,051 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 06:40:27,104 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 06:40:27,110 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 06:40:27,111 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 06:40:27,112 INFO L202 PluginConnector]: Adding new model easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:40:27 BoogieIcfgContainer [2022-03-04 06:40:27,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 06:40:27,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 06:40:27,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 06:40:27,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 06:40:27,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:40:26" (1/2) ... [2022-03-04 06:40:27,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf3bd26 and model type easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:40:27, skipping insertion in model container [2022-03-04 06:40:27,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:40:27" (2/2) ... [2022-03-04 06:40:27,124 INFO L111 eAbstractionObserver]: Analyzing ICFG easy7.wvr.bpl [2022-03-04 06:40:27,128 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 06:40:27,129 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 06:40:27,129 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 06:40:27,129 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 06:40:27,165 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-04 06:40:27,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 06:40:27,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:40:27,229 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 06:40:27,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 06:40:27,266 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 06:40:27,276 INFO L339 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, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-03-04 06:40:27,276 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 06:40:27,337 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 28 transitions and produced 29 states. [2022-03-04 06:40:27,339 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 06:40:27,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:40:27,344 INFO L85 PathProgramCache]: Analyzing trace with hash 838361445, now seen corresponding path program 1 times [2022-03-04 06:40:27,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:40:27,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372565176] [2022-03-04 06:40:27,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:40:27,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:40:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:40:27,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:40:27,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:40:27,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372565176] [2022-03-04 06:40:27,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372565176] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 06:40:27,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 06:40:27,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-04 06:40:27,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222603547] [2022-03-04 06:40:27,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 06:40:27,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-04 06:40:27,766 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:40:27,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-04 06:40:27,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-04 06:40:27,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:40:27,793 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:40:27,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-03-04 06:40:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:40:28,041 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 86 transitions and produced 52 states. [2022-03-04 06:40:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 06:40:28,043 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-04 06:40:28,044 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-04 06:40:28,044 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-04 06:40:28,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 06:40:28,060 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-03-04 06:40:28,061 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 06:40:28,062 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 06:40:28,067 INFO L202 PluginConnector]: Adding new model easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:40:28 BasicIcfg [2022-03-04 06:40:28,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 06:40:28,073 INFO L158 Benchmark]: Toolchain (without parser) took 1170.03ms. Allocated memory was 177.2MB in the beginning and 283.1MB in the end (delta: 105.9MB). Free memory was 136.5MB in the beginning and 257.1MB in the end (delta: -120.7MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. [2022-03-04 06:40:28,085 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 177.2MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 06:40:28,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.96ms. Allocated memory is still 177.2MB. Free memory was 136.4MB in the beginning and 134.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-04 06:40:28,087 INFO L158 Benchmark]: Boogie Preprocessor took 12.20ms. Allocated memory is still 177.2MB. Free memory was 134.9MB in the beginning and 134.0MB in the end (delta: 924.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 06:40:28,089 INFO L158 Benchmark]: RCFGBuilder took 175.78ms. Allocated memory is still 177.2MB. Free memory was 134.0MB in the beginning and 125.9MB in the end (delta: 8.1MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-04 06:40:28,094 INFO L158 Benchmark]: TraceAbstraction took 953.85ms. Allocated memory was 177.2MB in the beginning and 283.1MB in the end (delta: 105.9MB). Free memory was 125.4MB in the beginning and 257.1MB in the end (delta: -131.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 06:40:28,097 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 0.12ms. Allocated memory is still 177.2MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.96ms. Allocated memory is still 177.2MB. Free memory was 136.4MB in the beginning and 134.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.20ms. Allocated memory is still 177.2MB. Free memory was 134.9MB in the beginning and 134.0MB in the end (delta: 924.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 175.78ms. Allocated memory is still 177.2MB. Free memory was 134.0MB in the beginning and 125.9MB in the end (delta: 8.1MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 953.85ms. Allocated memory was 177.2MB in the beginning and 283.1MB in the end (delta: 105.9MB). Free memory was 125.4MB in the beginning and 257.1MB in the end (delta: -131.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 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: 39]: 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 5 procedures, 36 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 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! [2022-03-04 06:40:28,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-03-04 06:40:28,339 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...