/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-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 23:42:49,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 23:42:50,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 23:42:50,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 23:42:50,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 23:42:50,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 23:42:50,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 23:42:50,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 23:42:50,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 23:42:50,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 23:42:50,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 23:42:50,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 23:42:50,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 23:42:50,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 23:42:50,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 23:42:50,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 23:42:50,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 23:42:50,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 23:42:50,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 23:42:50,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 23:42:50,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 23:42:50,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 23:42:50,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 23:42:50,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 23:42:50,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 23:42:50,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-19 23:42:50,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-19 23:42:50,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-19 23:42:50,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-19 23:42:50,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-19 23:42:50,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-19 23:42:50,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-19 23:42:50,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-19 23:42:50,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 23:42:50,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 23:42:50,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 23:42:50,096 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-wrwc.epf [2022-02-19 23:42:50,110 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 23:42:50,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 23:42:50,111 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 23:42:50,111 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 23:42:50,111 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 23:42:50,111 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 23:42:50,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 23:42:50,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 23:42:50,112 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 23:42:50,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 23:42:50,112 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 23:42:50,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 23:42:50,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 23:42:50,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 23:42:50,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 23:42:50,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 23:42:50,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 23:42:50,113 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 23:42:50,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 23:42:50,113 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 23:42:50,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 23:42:50,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 23:42:50,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 23:42:50,113 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 23:42:50,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 23:42:50,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 23:42:50,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 23:42:50,114 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 23:42:50,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 23:42:50,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 23:42:50,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 23:42:50,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 23:42:50,115 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 23:42:50,115 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 23:42:50,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 23:42:50,115 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 23:42:50,116 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 23:42:50,116 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 23:42:50,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 23:42:50,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 23:42:50,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 23:42:50,299 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 23:42:50,301 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 23:42:50,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl [2022-02-19 23:42:50,302 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl' [2022-02-19 23:42:50,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 23:42:50,334 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 23:42:50,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 23:42:50,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 23:42:50,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 23:42:50,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:42:50" (1/1) ... [2022-02-19 23:42:50,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:42:50" (1/1) ... [2022-02-19 23:42:50,362 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 23:42:50,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 23:42:50,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 23:42:50,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 23:42:50,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 23:42:50,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:42:50" (1/1) ... [2022-02-19 23:42:50,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:42:50" (1/1) ... [2022-02-19 23:42:50,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:42:50" (1/1) ... [2022-02-19 23:42:50,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:42:50" (1/1) ... [2022-02-19 23:42:50,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:42:50" (1/1) ... [2022-02-19 23:42:50,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:42:50" (1/1) ... [2022-02-19 23:42:50,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:42:50" (1/1) ... [2022-02-19 23:42:50,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 23:42:50,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 23:42:50,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 23:42:50,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 23:42:50,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:42:50" (1/1) ... [2022-02-19 23:42:50,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 23:42:50,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:42:50,421 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) [2022-02-19 23:42:50,478 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 [2022-02-19 23:42:50,500 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 23:42:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 23:42:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 23:42:50,500 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 23:42:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 23:42:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 23:42:50,501 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 23:42:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 23:42:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 23:42:50,501 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-19 23:42:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 23:42:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 23:42:50,502 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-19 23:42:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-19 23:42:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-19 23:42:50,504 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 23:42:50,547 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 23:42:50,548 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 23:42:50,625 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 23:42:50,639 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 23:42:50,639 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 23:42:50,640 INFO L202 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:42:50 BoogieIcfgContainer [2022-02-19 23:42:50,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 23:42:50,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 23:42:50,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 23:42:50,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 23:42:50,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:42:50" (1/2) ... [2022-02-19 23:42:50,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1896db68 and model type counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 11:42:50, skipping insertion in model container [2022-02-19 23:42:50,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:42:50" (2/2) ... [2022-02-19 23:42:50,652 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-add-4-semi-Q67.wvr.bpl [2022-02-19 23:42:50,655 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 23:42:50,655 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 23:42:50,655 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 23:42:50,655 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 23:42:50,696 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-19 23:42:50,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 23:42:50,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:42:50,752 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) [2022-02-19 23:42:50,753 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 [2022-02-19 23:42:50,782 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 23:42:50,787 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=false [2022-02-19 23:42:50,788 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-19 23:42:51,252 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1125 transitions and produced 1033 states. [2022-02-19 23:42:51,254 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 23:42:51,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:42:51,260 INFO L85 PathProgramCache]: Analyzing trace with hash 408034141, now seen corresponding path program 1 times [2022-02-19 23:42:51,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:42:51,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293359653] [2022-02-19 23:42:51,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:42:51,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:42:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:42:52,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3939 backedges. 784 proven. 2926 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-02-19 23:42:52,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:42:52,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293359653] [2022-02-19 23:42:52,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293359653] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:42:52,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346116802] [2022-02-19 23:42:52,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:42:52,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:42:52,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:42:52,419 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) [2022-02-19 23:42:52,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 23:42:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:42:52,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 45 conjunts are in the unsatisfiable core [2022-02-19 23:42:52,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:42:53,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3939 backedges. 2887 proven. 11 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2022-02-19 23:42:53,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:42:55,053 INFO L134 CoverageAnalysis]: Checked inductivity of 3939 backedges. 1949 proven. 971 refuted. 0 times theorem prover too weak. 1019 trivial. 0 not checked. [2022-02-19 23:42:55,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346116802] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:42:55,054 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:42:55,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 45] total 90 [2022-02-19 23:42:55,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401466302] [2022-02-19 23:42:55,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:42:55,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2022-02-19 23:42:55,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:42:55,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2022-02-19 23:42:55,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1513, Invalid=6677, Unknown=0, NotChecked=0, Total=8190 [2022-02-19 23:42:55,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:42:55,118 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:42:55,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 3.21978021978022) internal successors, (293), 90 states have internal predecessors, (293), 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) [2022-02-19 23:42:55,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:42:59,863 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1277 transitions and produced 1105 states. [2022-02-19 23:42:59,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-19 23:42:59,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-19 23:43:00,064 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 [2022-02-19 23:43:00,065 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 23:43:00,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:43:00,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1536506421, now seen corresponding path program 2 times [2022-02-19 23:43:00,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:43:00,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124259880] [2022-02-19 23:43:00,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:43:00,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:43:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:43:00,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3693 backedges. 1827 proven. 400 refuted. 0 times theorem prover too weak. 1466 trivial. 0 not checked. [2022-02-19 23:43:00,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:43:00,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124259880] [2022-02-19 23:43:00,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124259880] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:43:00,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630651488] [2022-02-19 23:43:00,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 23:43:00,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:43:00,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:43:00,475 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 23:43:00,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 23:43:00,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 23:43:00,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:43:00,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-19 23:43:00,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:43:00,874 INFO L134 CoverageAnalysis]: Checked inductivity of 3693 backedges. 1827 proven. 400 refuted. 0 times theorem prover too weak. 1466 trivial. 0 not checked. [2022-02-19 23:43:00,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:43:01,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3693 backedges. 1827 proven. 400 refuted. 0 times theorem prover too weak. 1466 trivial. 0 not checked. [2022-02-19 23:43:01,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630651488] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:43:01,182 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:43:01,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 23] total 25 [2022-02-19 23:43:01,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271726939] [2022-02-19 23:43:01,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:43:01,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-19 23:43:01,184 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:43:01,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-19 23:43:01,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=321, Unknown=0, NotChecked=0, Total=600 [2022-02-19 23:43:01,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:43:01,184 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:43:01,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.72) internal successors, (118), 25 states have internal predecessors, (118), 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) [2022-02-19 23:43:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-19 23:43:01,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:43:04,146 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3621 transitions and produced 3091 states. [2022-02-19 23:43:04,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-02-19 23:43:04,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-19 23:43:04,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-19 23:43:04,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:43:04,360 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 23:43:04,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:43:04,360 INFO L85 PathProgramCache]: Analyzing trace with hash -732860061, now seen corresponding path program 3 times [2022-02-19 23:43:04,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:43:04,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127804803] [2022-02-19 23:43:04,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:43:04,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:43:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:43:22,817 INFO L134 CoverageAnalysis]: Checked inductivity of 35642 backedges. 24676 proven. 10934 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-19 23:43:22,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:43:22,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127804803] [2022-02-19 23:43:22,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127804803] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:43:22,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391006543] [2022-02-19 23:43:22,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 23:43:22,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:43:22,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:43:22,821 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 23:43:22,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 23:43:23,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 105 check-sat command(s) [2022-02-19 23:43:23,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:43:23,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 65 conjunts are in the unsatisfiable core [2022-02-19 23:43:23,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:43:30,529 INFO L134 CoverageAnalysis]: Checked inductivity of 35642 backedges. 1771 proven. 30029 refuted. 0 times theorem prover too weak. 3842 trivial. 0 not checked. [2022-02-19 23:43:30,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:43:38,308 INFO L134 CoverageAnalysis]: Checked inductivity of 35642 backedges. 3933 proven. 27867 refuted. 0 times theorem prover too weak. 3842 trivial. 0 not checked. [2022-02-19 23:43:38,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391006543] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:43:38,309 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:43:38,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [227, 65, 65] total 355 [2022-02-19 23:43:38,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99341659] [2022-02-19 23:43:38,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:43:38,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 356 states [2022-02-19 23:43:38,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:43:38,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 356 interpolants. [2022-02-19 23:43:38,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18194, Invalid=108186, Unknown=0, NotChecked=0, Total=126380 [2022-02-19 23:43:38,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:43:38,327 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:43:38,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 356 states, 356 states have (on average 2.682584269662921) internal successors, (955), 355 states have internal predecessors, (955), 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) [2022-02-19 23:43:38,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2022-02-19 23:43:38,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-19 23:43:38,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:44:34,356 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9524 transitions and produced 5704 states. [2022-02-19 23:44:34,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 246 states. [2022-02-19 23:44:34,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-19 23:44:34,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 333 states. [2022-02-19 23:44:34,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-19 23:44:34,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:44:34,572 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 23:44:34,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:44:34,575 INFO L85 PathProgramCache]: Analyzing trace with hash -774426457, now seen corresponding path program 4 times [2022-02-19 23:44:34,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:44:34,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802038473] [2022-02-19 23:44:34,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:44:34,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:44:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:45:25,655 INFO L134 CoverageAnalysis]: Checked inductivity of 113106 backedges. 90119 proven. 22923 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-02-19 23:45:25,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:45:25,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802038473] [2022-02-19 23:45:25,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802038473] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:45:25,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12337646] [2022-02-19 23:45:25,656 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 23:45:25,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:45:25,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:45:25,676 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 23:45:25,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 23:45:26,077 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 23:45:26,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:45:26,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 2451 conjuncts, 311 conjunts are in the unsatisfiable core [2022-02-19 23:45:26,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:46:27,200 INFO L134 CoverageAnalysis]: Checked inductivity of 113106 backedges. 109583 proven. 60 refuted. 0 times theorem prover too weak. 3463 trivial. 0 not checked. [2022-02-19 23:46:27,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:47:29,896 INFO L134 CoverageAnalysis]: Checked inductivity of 113106 backedges. 52473 proven. 57200 refuted. 0 times theorem prover too weak. 3433 trivial. 0 not checked. [2022-02-19 23:47:29,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12337646] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:47:29,897 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:47:29,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [398, 281, 311] total 988 [2022-02-19 23:47:29,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082133556] [2022-02-19 23:47:29,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:47:29,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 989 states [2022-02-19 23:47:29,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:47:29,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 989 interpolants. [2022-02-19 23:47:30,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187640, Invalid=789492, Unknown=0, NotChecked=0, Total=977132 [2022-02-19 23:47:30,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:47:30,023 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:47:30,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 989 states, 989 states have (on average 2.3094034378159756) internal successors, (2284), 988 states have internal predecessors, (2284), 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) [2022-02-19 23:47:30,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 246 states. [2022-02-19 23:47:30,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-19 23:47:30,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 333 states. [2022-02-19 23:47:30,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-19 23:57:10,169 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 [2022-02-19 23:57:10,169 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 [2022-02-19 23:57:10,169 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 23:57:11,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2022-02-19 23:57:11,213 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 [2022-02-19 23:57:11,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-19 23:57:11,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-19 23:57:11,608 WARN L594 AbstractCegarLoop]: Verification canceled: while executing Executor. [2022-02-19 23:57:11,609 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-19 23:57:11,610 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-19 23:57:11,610 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-19 23:57:11,610 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-19 23:57:11,610 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-19 23:57:11,615 INFO L732 BasicCegarLoop]: Path program histogram: [4] [2022-02-19 23:57:11,616 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 23:57:11,616 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 23:57:11,617 INFO L202 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 11:57:11 BasicIcfg [2022-02-19 23:57:11,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 23:57:11,618 INFO L158 Benchmark]: Toolchain (without parser) took 861283.99ms. Allocated memory was 207.6MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 172.7MB in the beginning and 721.0MB in the end (delta: -548.3MB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-02-19 23:57:11,618 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 207.6MB. Free memory is still 173.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 23:57:11,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.35ms. Allocated memory is still 207.6MB. Free memory was 172.7MB in the beginning and 171.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 23:57:11,619 INFO L158 Benchmark]: Boogie Preprocessor took 17.70ms. Allocated memory is still 207.6MB. Free memory was 171.2MB in the beginning and 170.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 23:57:11,619 INFO L158 Benchmark]: RCFGBuilder took 256.25ms. Allocated memory is still 207.6MB. Free memory was 170.1MB in the beginning and 160.3MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-19 23:57:11,619 INFO L158 Benchmark]: TraceAbstraction took 860975.82ms. Allocated memory was 207.6MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 159.8MB in the beginning and 721.0MB in the end (delta: -561.2MB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-02-19 23:57:11,620 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 0.13ms. Allocated memory is still 207.6MB. Free memory is still 173.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.35ms. Allocated memory is still 207.6MB. Free memory was 172.7MB in the beginning and 171.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.70ms. Allocated memory is still 207.6MB. Free memory was 171.2MB in the beginning and 170.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 256.25ms. Allocated memory is still 207.6MB. Free memory was 170.1MB in the beginning and 160.3MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 860975.82ms. Allocated memory was 207.6MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 159.8MB in the beginning and 721.0MB in the end (delta: -561.2MB). Peak memory consumption was 2.0GB. 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: 80]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing Executor. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 52 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 860.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 645.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1238, 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: 0.2s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 211.5s InterpolantComputationTime, 3880 NumberOfCodeBlocks, 3784 NumberOfCodeBlocksAsserted, 113 NumberOfCheckSat, 5808 ConstructedInterpolants, 0 QuantifiedInterpolants, 70167 SizeOfPredicates, 12 NumberOfNonLiveVariables, 4954 ConjunctsInSsa, 463 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 315019/469140 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown