/usr/bin/java -Xmx16000000000 -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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 05:32:03,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 05:32:03,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 05:32:03,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 05:32:03,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 05:32:03,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 05:32:03,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 05:32:03,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 05:32:03,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 05:32:03,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 05:32:03,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 05:32:03,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 05:32:03,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 05:32:03,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 05:32:03,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 05:32:03,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 05:32:03,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 05:32:03,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 05:32:03,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 05:32:03,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 05:32:03,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 05:32:03,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 05:32:03,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 05:32:03,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 05:32:03,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 05:32:03,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 05:32:03,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 05:32:03,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 05:32:03,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 05:32:03,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 05:32:03,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 05:32:03,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 05:32:03,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 05:32:03,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 05:32:03,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 05:32:03,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 05:32:03,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 05:32:03,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 05:32:03,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 05:32:03,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 05:32:03,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 05:32:03,436 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-FA-NoLbe.epf [2022-01-18 05:32:03,452 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 05:32:03,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 05:32:03,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 05:32:03,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 05:32:03,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 05:32:03,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 05:32:03,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 05:32:03,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 05:32:03,454 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 05:32:03,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 05:32:03,454 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 05:32:03,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 05:32:03,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 05:32:03,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 05:32:03,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 05:32:03,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 05:32:03,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 05:32:03,455 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 05:32:03,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 05:32:03,455 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 05:32:03,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 05:32:03,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 05:32:03,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 05:32:03,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 05:32:03,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 05:32:03,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 05:32:03,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 05:32:03,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 05:32:03,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 05:32:03,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 05:32:03,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 05:32:03,457 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 05:32:03,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 05:32:03,457 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 05:32:03,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 05:32:03,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 05:32:03,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 05:32:03,699 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-18 05:32:03,700 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-18 05:32:03,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-2.wvr.bpl [2022-01-18 05:32:03,701 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-2.wvr.bpl' [2022-01-18 05:32:03,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 05:32:03,726 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-18 05:32:03,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 05:32:03,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 05:32:03,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 05:32:03,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:03" (1/1) ... [2022-01-18 05:32:03,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:03" (1/1) ... [2022-01-18 05:32:03,749 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-18 05:32:03,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 05:32:03,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 05:32:03,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 05:32:03,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 05:32:03,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:03" (1/1) ... [2022-01-18 05:32:03,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:03" (1/1) ... [2022-01-18 05:32:03,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:03" (1/1) ... [2022-01-18 05:32:03,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:03" (1/1) ... [2022-01-18 05:32:03,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:03" (1/1) ... [2022-01-18 05:32:03,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:03" (1/1) ... [2022-01-18 05:32:03,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:03" (1/1) ... [2022-01-18 05:32:03,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 05:32:03,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 05:32:03,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 05:32:03,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 05:32:03,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:03" (1/1) ... [2022-01-18 05:32:03,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 05:32:03,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 05:32:03,805 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) [2022-01-18 05:32:03,828 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 [2022-01-18 05:32:03,846 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-18 05:32:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 05:32:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 05:32:03,847 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-18 05:32:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 05:32:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 05:32:03,847 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-18 05:32:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 05:32:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 05:32:03,848 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 05:32:03,889 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 05:32:03,890 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 05:32:03,993 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 05:32:04,008 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 05:32:04,008 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 05:32:04,010 INFO L202 PluginConnector]: Adding new model ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 05:32:04 BoogieIcfgContainer [2022-01-18 05:32:04,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 05:32:04,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 05:32:04,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 05:32:04,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 05:32:04,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:32:03" (1/2) ... [2022-01-18 05:32:04,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e055dfb and model type ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 05:32:04, skipping insertion in model container [2022-01-18 05:32:04,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 05:32:04" (2/2) ... [2022-01-18 05:32:04,020 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-2.wvr.bpl [2022-01-18 05:32:04,024 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 05:32:04,024 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 05:32:04,024 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 05:32:04,025 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 05:32:04,070 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 05:32:04,109 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 05:32:04,115 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=FINITE_AUTOMATA, 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 [2022-01-18 05:32:04,115 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 05:32:04,123 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 22 transitions, 60 flow [2022-01-18 05:32:04,152 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 60 states, 59 states have (on average 1.694915254237288) internal successors, (100), 59 states have internal predecessors, (100), 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) [2022-01-18 05:32:04,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 59 states have (on average 1.694915254237288) internal successors, (100), 59 states have internal predecessors, (100), 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) [2022-01-18 05:32:04,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-18 05:32:04,161 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:04,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:04,162 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 05:32:04,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:04,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1135520845, now seen corresponding path program 1 times [2022-01-18 05:32:04,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:04,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544486555] [2022-01-18 05:32:04,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:04,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:04,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:04,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:04,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544486555] [2022-01-18 05:32:04,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544486555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:04,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:04,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 05:32:04,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770592245] [2022-01-18 05:32:04,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:04,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 05:32:04,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:04,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 05:32:04,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 05:32:04,458 INFO L87 Difference]: Start difference. First operand has 60 states, 59 states have (on average 1.694915254237288) internal successors, (100), 59 states have internal predecessors, (100), 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 5 states, 5 states have (on average 3.6) 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) [2022-01-18 05:32:04,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:04,524 INFO L93 Difference]: Finished difference Result 76 states and 123 transitions. [2022-01-18 05:32:04,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 05:32:04,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) 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) Word has length 18 [2022-01-18 05:32:04,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:04,535 INFO L225 Difference]: With dead ends: 76 [2022-01-18 05:32:04,535 INFO L226 Difference]: Without dead ends: 36 [2022-01-18 05:32:04,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 05:32:04,543 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 20 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:04,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 27 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 05:32:04,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-01-18 05:32:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-01-18 05:32:04,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.4857142857142858) internal successors, (52), 35 states have internal predecessors, (52), 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) [2022-01-18 05:32:04,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 52 transitions. [2022-01-18 05:32:04,600 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 52 transitions. Word has length 18 [2022-01-18 05:32:04,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:04,600 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 52 transitions. [2022-01-18 05:32:04,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) 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) [2022-01-18 05:32:04,602 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2022-01-18 05:32:04,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-18 05:32:04,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:04,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:04,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 05:32:04,605 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 05:32:04,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:04,608 INFO L85 PathProgramCache]: Analyzing trace with hash -419510621, now seen corresponding path program 2 times [2022-01-18 05:32:04,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:04,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610261131] [2022-01-18 05:32:04,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:04,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:04,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:04,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:04,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610261131] [2022-01-18 05:32:04,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610261131] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:04,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:04,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 05:32:04,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744575207] [2022-01-18 05:32:04,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:04,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 05:32:04,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:04,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 05:32:04,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 05:32:04,673 INFO L87 Difference]: Start difference. First operand 36 states and 52 transitions. Second operand has 5 states, 5 states have (on average 3.6) 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) [2022-01-18 05:32:04,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:04,749 INFO L93 Difference]: Finished difference Result 38 states and 53 transitions. [2022-01-18 05:32:04,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 05:32:04,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) 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) Word has length 18 [2022-01-18 05:32:04,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:04,750 INFO L225 Difference]: With dead ends: 38 [2022-01-18 05:32:04,750 INFO L226 Difference]: Without dead ends: 34 [2022-01-18 05:32:04,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 05:32:04,751 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:04,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 27 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:32:04,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-01-18 05:32:04,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-01-18 05:32:04,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 33 states have internal predecessors, (48), 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) [2022-01-18 05:32:04,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2022-01-18 05:32:04,756 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 18 [2022-01-18 05:32:04,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:04,756 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2022-01-18 05:32:04,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) 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) [2022-01-18 05:32:04,757 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2022-01-18 05:32:04,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-18 05:32:04,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:32:04,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 05:32:04,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 05:32:04,758 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 05:32:04,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:32:04,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1871817989, now seen corresponding path program 3 times [2022-01-18 05:32:04,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:32:04,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603147844] [2022-01-18 05:32:04,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:32:04,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:32:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:32:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:32:04,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:32:04,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603147844] [2022-01-18 05:32:04,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603147844] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:32:04,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:32:04,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 05:32:04,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836065627] [2022-01-18 05:32:04,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:32:04,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 05:32:04,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:32:04,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 05:32:04,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 05:32:04,802 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 5 states, 5 states have (on average 3.6) 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) [2022-01-18 05:32:04,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:32:04,822 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2022-01-18 05:32:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 05:32:04,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) 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) Word has length 18 [2022-01-18 05:32:04,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:32:04,823 INFO L225 Difference]: With dead ends: 13 [2022-01-18 05:32:04,823 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 05:32:04,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 05:32:04,824 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 05:32:04,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 05:32:04,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 05:32:04,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 05:32:04,826 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) [2022-01-18 05:32:04,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 05:32:04,826 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-01-18 05:32:04,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:32:04,826 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 05:32:04,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) 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) [2022-01-18 05:32:04,827 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 05:32:04,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 05:32:04,829 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-01-18 05:32:04,829 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 05:32:04,829 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 05:32:04,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 05:32:04,832 INFO L732 BasicCegarLoop]: Path program histogram: [3] [2022-01-18 05:32:04,834 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 05:32:04,834 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 05:32:04,837 INFO L202 PluginConnector]: Adding new model ticket-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 05:32:04 BasicIcfg [2022-01-18 05:32:04,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 05:32:04,837 INFO L158 Benchmark]: Toolchain (without parser) took 1111.43ms. Allocated memory is still 358.6MB. Free memory was 320.4MB in the beginning and 320.3MB in the end (delta: 166.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 05:32:04,838 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 358.6MB. Free memory was 321.5MB in the beginning and 321.4MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 05:32:04,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.27ms. Allocated memory is still 358.6MB. Free memory was 320.4MB in the beginning and 318.9MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-18 05:32:04,839 INFO L158 Benchmark]: Boogie Preprocessor took 14.93ms. Allocated memory is still 358.6MB. Free memory was 318.9MB in the beginning and 317.9MB in the end (delta: 965.0kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 05:32:04,839 INFO L158 Benchmark]: RCFGBuilder took 238.92ms. Allocated memory is still 358.6MB. Free memory was 317.9MB in the beginning and 309.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2022-01-18 05:32:04,840 INFO L158 Benchmark]: TraceAbstraction took 825.56ms. Allocated memory is still 358.6MB. Free memory was 308.6MB in the beginning and 320.3MB in the end (delta: -11.7MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 05:32:04,841 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 358.6MB. Free memory was 321.5MB in the beginning and 321.4MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 24.27ms. Allocated memory is still 358.6MB. Free memory was 320.4MB in the beginning and 318.9MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 14.93ms. Allocated memory is still 358.6MB. Free memory was 318.9MB in the beginning and 317.9MB in the end (delta: 965.0kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 238.92ms. Allocated memory is still 358.6MB. Free memory was 317.9MB in the beginning and 309.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 825.56ms. Allocated memory is still 358.6MB. Free memory was 308.6MB in the beginning and 320.3MB in the end (delta: -11.7MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 5 procedures, 38 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 63 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 22 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-01-18 05:32:04,875 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...