/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 03:26:05,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 03:26:05,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 03:26:05,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 03:26:05,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 03:26:05,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 03:26:05,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 03:26:05,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 03:26:05,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 03:26:05,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 03:26:05,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 03:26:05,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 03:26:05,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 03:26:05,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 03:26:05,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 03:26:05,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 03:26:05,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 03:26:05,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 03:26:05,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 03:26:05,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 03:26:05,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 03:26:05,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 03:26:05,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 03:26:05,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 03:26:05,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 03:26:05,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 03:26:05,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 03:26:05,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 03:26:05,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 03:26:05,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 03:26:05,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 03:26:05,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 03:26:05,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 03:26:05,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 03:26:05,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 03:26:05,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 03:26:05,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 03:26:05,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 03:26:05,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 03:26:05,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 03:26:05,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 03:26:05,756 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.epf [2022-02-20 03:26:05,772 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 03:26:05,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 03:26:05,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 03:26:05,773 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 03:26:05,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 03:26:05,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 03:26:05,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 03:26:05,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 03:26:05,774 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 03:26:05,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 03:26:05,775 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 03:26:05,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 03:26:05,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 03:26:05,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 03:26:05,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 03:26:05,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 03:26:05,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 03:26:05,776 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 03:26:05,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 03:26:05,776 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 03:26:05,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 03:26:05,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 03:26:05,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 03:26:05,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 03:26:05,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 03:26:05,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:26:05,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 03:26:05,778 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 03:26:05,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 03:26:05,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 03:26:05,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 03:26:05,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 03:26:05,778 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 03:26:05,779 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 03:26:05,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 03:26:05,779 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 03:26:05,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 03:26:05,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 03:26:05,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 03:26:05,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 03:26:05,984 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 03:26:05,984 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 03:26:05,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl [2022-02-20 03:26:05,986 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl' [2022-02-20 03:26:06,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 03:26:06,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 03:26:06,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 03:26:06,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 03:26:06,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 03:26:06,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:26:06" (1/1) ... [2022-02-20 03:26:06,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:26:06" (1/1) ... [2022-02-20 03:26:06,048 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 03:26:06,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 03:26:06,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 03:26:06,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 03:26:06,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 03:26:06,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:26:06" (1/1) ... [2022-02-20 03:26:06,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:26:06" (1/1) ... [2022-02-20 03:26:06,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:26:06" (1/1) ... [2022-02-20 03:26:06,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:26:06" (1/1) ... [2022-02-20 03:26:06,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:26:06" (1/1) ... [2022-02-20 03:26:06,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:26:06" (1/1) ... [2022-02-20 03:26:06,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:26:06" (1/1) ... [2022-02-20 03:26:06,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 03:26:06,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 03:26:06,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 03:26:06,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 03:26:06,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:26:06" (1/1) ... [2022-02-20 03:26:06,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:26:06,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:26:06,113 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) [2022-02-20 03:26:06,120 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 [2022-02-20 03:26:06,146 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 03:26:06,146 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 03:26:06,146 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 03:26:06,146 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 03:26:06,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 03:26:06,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 03:26:06,147 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 03:26:06,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 03:26:06,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 03:26:06,147 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-20 03:26:06,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-20 03:26:06,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-20 03:26:06,147 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-20 03:26:06,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-20 03:26:06,148 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-20 03:26:06,148 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 03:26:06,185 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 03:26:06,186 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 03:26:06,286 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 03:26:06,293 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 03:26:06,293 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 03:26:06,296 INFO L202 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:26:06 BoogieIcfgContainer [2022-02-20 03:26:06,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 03:26:06,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 03:26:06,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 03:26:06,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 03:26:06,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:26:06" (1/2) ... [2022-02-20 03:26:06,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93411cf and model type exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:26:06, skipping insertion in model container [2022-02-20 03:26:06,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:26:06" (2/2) ... [2022-02-20 03:26:06,314 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x9.wvr.bpl [2022-02-20 03:26:06,318 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 03:26:06,318 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 03:26:06,319 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 03:26:06,319 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 03:26:06,376 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-20 03:26:06,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 03:26:06,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:26:06,446 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) [2022-02-20 03:26:06,471 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 [2022-02-20 03:26:06,481 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 03:26:06,487 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=true, mMcrOverapproximateWrwc=true [2022-02-20 03:26:06,488 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-20 03:26:20,383 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2422200 transitions and produced 608382 states. [2022-02-20 03:26:20,386 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 03:26:20,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:26:20,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1504098190, now seen corresponding path program 1 times [2022-02-20 03:26:20,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:26:20,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204319499] [2022-02-20 03:26:20,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:26:20,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:26:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:26:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 0 proven. 928 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:26:34,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:26:34,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204319499] [2022-02-20 03:26:34,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204319499] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:26:34,427 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307670973] [2022-02-20 03:26:34,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:26:34,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:26:34,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:26:34,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:26:34,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 03:26:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:26:34,593 WARN L261 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 453 conjunts are in the unsatisfiable core [2022-02-20 03:26:34,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-02-20 03:40:29,936 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 03:40:29,936 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 03:40:29,936 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 03:40:29,943 WARN L244 SmtUtils]: Removed 28 from assertion stack [2022-02-20 03:40:29,946 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-20 03:40:29,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-20 03:40:30,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-20 03:40:30,147 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 276 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 200 for 284ms.. [2022-02-20 03:40:30,149 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-20 03:40:30,149 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-20 03:40:30,149 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-20 03:40:30,149 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-20 03:40:30,157 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 03:40:30,159 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 03:40:30,159 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 03:40:30,161 INFO L202 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 03:40:30 BasicIcfg [2022-02-20 03:40:30,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 03:40:30,162 INFO L158 Benchmark]: Toolchain (without parser) took 864152.76ms. Allocated memory was 187.7MB in the beginning and 7.3GB in the end (delta: 7.2GB). Free memory was 145.9MB in the beginning and 5.6GB in the end (delta: -5.4GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2022-02-20 03:40:30,162 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 187.7MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 03:40:30,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.60ms. Allocated memory is still 187.7MB. Free memory was 145.9MB in the beginning and 144.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 03:40:30,163 INFO L158 Benchmark]: Boogie Preprocessor took 27.32ms. Allocated memory is still 187.7MB. Free memory was 144.3MB in the beginning and 143.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 03:40:30,163 INFO L158 Benchmark]: RCFGBuilder took 217.06ms. Allocated memory is still 187.7MB. Free memory was 143.3MB in the beginning and 133.5MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-20 03:40:30,164 INFO L158 Benchmark]: TraceAbstraction took 863858.50ms. Allocated memory was 187.7MB in the beginning and 7.3GB in the end (delta: 7.2GB). Free memory was 132.9MB in the beginning and 5.6GB in the end (delta: -5.4GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2022-02-20 03:40:30,166 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 0.09ms. Allocated memory is still 187.7MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.60ms. Allocated memory is still 187.7MB. Free memory was 145.9MB in the beginning and 144.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.32ms. Allocated memory is still 187.7MB. Free memory was 144.3MB in the beginning and 143.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 217.06ms. Allocated memory is still 187.7MB. Free memory was 143.3MB in the beginning and 133.5MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 863858.50ms. Allocated memory was 187.7MB in the beginning and 7.3GB in the end (delta: 7.2GB). Free memory was 132.9MB in the beginning and 5.6GB in the end (delta: -5.4GB). Peak memory consumption was 1.7GB. 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 - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 276 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 200 for 284ms.. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 276 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 200 for 284ms.. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 276 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 200 for 284ms.. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 276 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 200 for 284ms.. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 276 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 200 for 284ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 98 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 863.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 13.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown