/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-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-c7b2d19 [2022-03-16 07:19:01,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 07:19:01,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 07:19:01,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 07:19:01,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 07:19:01,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 07:19:01,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 07:19:01,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 07:19:01,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 07:19:01,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 07:19:01,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 07:19:01,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 07:19:01,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 07:19:01,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 07:19:01,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 07:19:01,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 07:19:01,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 07:19:01,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 07:19:01,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 07:19:01,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 07:19:01,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 07:19:01,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 07:19:01,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 07:19:01,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 07:19:01,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 07:19:01,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 07:19:01,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 07:19:01,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 07:19:01,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-16 07:19:01,871 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 07:19:01,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 07:19:01,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 07:19:01,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 07:19:01,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 07:19:01,873 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 07:19:01,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 07:19:01,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 07:19:01,873 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 07:19:01,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 07:19:01,874 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 07:19:01,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 07:19:01,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 07:19:01,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 07:19:01,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 07:19:01,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 07:19:01,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 07:19:01,874 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 07:19:01,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 07:19:01,875 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 07:19:01,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 07:19:01,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 07:19:01,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 07:19:01,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 07:19:01,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 07:19:01,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 07:19:01,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 07:19:01,876 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 07:19:01,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 07:19:01,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 07:19:01,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 07:19:01,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 07:19:01,877 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 07:19:01,877 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 07:19:01,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 07:19:01,877 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 07:19:01,877 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-16 07:19:01,877 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 07:19:01,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 07:19:02,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 07:19:02,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 07:19:02,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 07:19:02,101 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 07:19:02,102 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 07:19:02,103 INFO L432 ainManager$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 [2022-03-16 07:19:02,103 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' [2022-03-16 07:19:02,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 07:19:02,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 07:19:02,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 07:19:02,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 07:19:02,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 07:19:02,130 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 16.03 07:19:02" (1/1) ... [2022-03-16 07:19:02,135 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 16.03 07:19:02" (1/1) ... [2022-03-16 07:19:02,139 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 07:19:02,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 07:19:02,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 07:19:02,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 07:19:02,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 07:19:02,147 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 16.03 07:19:02" (1/1) ... [2022-03-16 07:19:02,147 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 16.03 07:19:02" (1/1) ... [2022-03-16 07:19:02,149 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 16.03 07:19:02" (1/1) ... [2022-03-16 07:19:02,149 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 16.03 07:19:02" (1/1) ... [2022-03-16 07:19:02,153 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 16.03 07:19:02" (1/1) ... [2022-03-16 07:19:02,155 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 16.03 07:19:02" (1/1) ... [2022-03-16 07:19:02,156 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 16.03 07:19:02" (1/1) ... [2022-03-16 07:19:02,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 07:19:02,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 07:19:02,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 07:19:02,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 07:19:02,161 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 16.03 07:19:02" (1/1) ... [2022-03-16 07:19:02,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 07:19:02,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:19:02,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-16 07:19:02,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-16 07:19:02,228 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 07:19:02,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 07:19:02,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 07:19:02,229 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 07:19:02,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 07:19:02,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 07:19:02,230 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 07:19:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 07:19:02,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 07:19:02,231 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 07:19:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 07:19:02,231 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 07:19:02,232 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-16 07:19:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-16 07:19:02,234 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-16 07:19:02,235 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 07:19:02,275 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 07:19:02,276 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 07:19:02,392 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 07:19:02,404 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 07:19:02,405 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 07:19:02,406 INFO L202 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 07:19:02 BoogieIcfgContainer [2022-03-16 07:19:02,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 07:19:02,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 07:19:02,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 07:19:02,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 07:19:02,425 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 16.03 07:19:02" (1/2) ... [2022-03-16 07:19:02,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a216d9e and model type counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 07:19:02, skipping insertion in model container [2022-03-16 07:19:02,425 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 16.03 07:19:02" (2/2) ... [2022-03-16 07:19:02,426 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-add-4-semi-Q67.wvr.bpl [2022-03-16 07:19:02,429 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 07:19:02,430 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 07:19:02,430 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 07:19:02,430 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 07:19:02,489 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-16 07:19:02,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 07:19:02,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:19:02,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-16 07:19:02,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-16 07:19:02,579 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 07:19:02,588 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-16 07:19:02,588 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-16 07:19:02,952 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1125 transitions and produced 1037 states. [2022-03-16 07:19:02,954 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-16 07:19:02,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:19:02,971 INFO L85 PathProgramCache]: Analyzing trace with hash 408034141, now seen corresponding path program 1 times [2022-03-16 07:19:02,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:19:02,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017801673] [2022-03-16 07:19:02,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:19:02,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:19:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:19:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3939 backedges. 784 proven. 2926 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-03-16 07:19:04,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:19:04,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017801673] [2022-03-16 07:19:04,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017801673] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:19:04,164 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534134205] [2022-03-16 07:19:04,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:19:04,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:19:04,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:19:04,166 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) [2022-03-16 07:19:04,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 07:19:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:19:04,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-16 07:19:04,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:19:05,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3939 backedges. 2887 proven. 11 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2022-03-16 07:19:05,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:19:07,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3939 backedges. 1949 proven. 971 refuted. 0 times theorem prover too weak. 1019 trivial. 0 not checked. [2022-03-16 07:19:07,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534134205] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:19:07,139 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:19:07,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 45] total 90 [2022-03-16 07:19:07,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870405270] [2022-03-16 07:19:07,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:19:07,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2022-03-16 07:19:07,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:19:07,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2022-03-16 07:19:07,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1513, Invalid=6677, Unknown=0, NotChecked=0, Total=8190 [2022-03-16 07:19:07,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:19:07,165 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:19:07,167 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) [2022-03-16 07:19:07,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:19:11,473 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1277 transitions and produced 1107 states. [2022-03-16 07:19:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-03-16 07:19:11,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-16 07:19:11,675 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 [2022-03-16 07:19:11,675 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-16 07:19:11,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:19:11,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1536506421, now seen corresponding path program 2 times [2022-03-16 07:19:11,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:19:11,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322622630] [2022-03-16 07:19:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:19:11,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:19:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:19:12,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3693 backedges. 1827 proven. 400 refuted. 0 times theorem prover too weak. 1466 trivial. 0 not checked. [2022-03-16 07:19:12,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:19:12,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322622630] [2022-03-16 07:19:12,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322622630] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:19:12,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319574549] [2022-03-16 07:19:12,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 07:19:12,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:19:12,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:19:12,043 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) [2022-03-16 07:19:12,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 07:19:12,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 07:19:12,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:19:12,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-16 07:19:12,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:19:12,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3693 backedges. 1827 proven. 400 refuted. 0 times theorem prover too weak. 1466 trivial. 0 not checked. [2022-03-16 07:19:12,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:19:12,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3693 backedges. 1827 proven. 400 refuted. 0 times theorem prover too weak. 1466 trivial. 0 not checked. [2022-03-16 07:19:12,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319574549] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:19:12,803 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:19:12,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 23] total 25 [2022-03-16 07:19:12,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577803588] [2022-03-16 07:19:12,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:19:12,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-16 07:19:12,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:19:12,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-16 07:19:12,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=321, Unknown=0, NotChecked=0, Total=600 [2022-03-16 07:19:12,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:19:12,805 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:19:12,805 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) [2022-03-16 07:19:12,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-03-16 07:19:12,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:19:15,760 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3919 transitions and produced 3270 states. [2022-03-16 07:19:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-16 07:19:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-16 07:19:15,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 07:19:15,980 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 [2022-03-16 07:19:15,981 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-16 07:19:15,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:19:15,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1587538705, now seen corresponding path program 3 times [2022-03-16 07:19:15,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:19:15,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344104390] [2022-03-16 07:19:15,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:19:15,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:19:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:19:40,480 INFO L134 CoverageAnalysis]: Checked inductivity of 43782 backedges. 26142 proven. 17608 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-16 07:19:40,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:19:40,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344104390] [2022-03-16 07:19:40,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344104390] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:19:40,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326289388] [2022-03-16 07:19:40,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 07:19:40,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:19:40,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:19:40,486 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) [2022-03-16 07:19:40,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 07:19:41,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 128 check-sat command(s) [2022-03-16 07:19:41,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:19:41,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1589 conjuncts, 79 conjunts are in the unsatisfiable core [2022-03-16 07:19:41,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:19:50,638 INFO L134 CoverageAnalysis]: Checked inductivity of 43782 backedges. 2557 proven. 37710 refuted. 0 times theorem prover too weak. 3515 trivial. 0 not checked. [2022-03-16 07:19:50,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:20:00,666 INFO L134 CoverageAnalysis]: Checked inductivity of 43782 backedges. 4291 proven. 35976 refuted. 0 times theorem prover too weak. 3515 trivial. 0 not checked. [2022-03-16 07:20:00,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326289388] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:20:00,667 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:20:00,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [257, 79, 79] total 409 [2022-03-16 07:20:00,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015094222] [2022-03-16 07:20:00,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:20:00,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 410 states [2022-03-16 07:20:00,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:20:00,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 410 interpolants. [2022-03-16 07:20:00,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21798, Invalid=145892, Unknown=0, NotChecked=0, Total=167690 [2022-03-16 07:20:00,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:20:00,705 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:20:00,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 410 states, 410 states have (on average 2.729268292682927) internal successors, (1119), 409 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 07:20:00,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-03-16 07:20:00,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-16 07:20:00,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:21:15,908 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 10362 transitions and produced 6086 states. [2022-03-16 07:21:15,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2022-03-16 07:21:15,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-16 07:21:15,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 386 states. [2022-03-16 07:21:15,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 07:21:16,131 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 [2022-03-16 07:21:16,131 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-16 07:21:16,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:21:16,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1046964645, now seen corresponding path program 4 times [2022-03-16 07:21:16,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:21:16,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622407558] [2022-03-16 07:21:16,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:21:16,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:21:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:22:23,720 INFO L134 CoverageAnalysis]: Checked inductivity of 134366 backedges. 93697 proven. 40605 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-03-16 07:22:23,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:22:23,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622407558] [2022-03-16 07:22:23,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622407558] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:22:23,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510026461] [2022-03-16 07:22:23,721 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 07:22:23,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:22:23,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:22:23,722 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) [2022-03-16 07:22:23,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 07:22:24,221 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 07:22:24,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:22:24,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 2649 conjuncts, 311 conjunts are in the unsatisfiable core [2022-03-16 07:22:24,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:23:31,491 INFO L134 CoverageAnalysis]: Checked inductivity of 134366 backedges. 127181 proven. 60 refuted. 0 times theorem prover too weak. 7125 trivial. 0 not checked. [2022-03-16 07:23:31,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:24:40,576 INFO L134 CoverageAnalysis]: Checked inductivity of 134366 backedges. 70071 proven. 57200 refuted. 0 times theorem prover too weak. 7095 trivial. 0 not checked. [2022-03-16 07:24:40,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510026461] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:24:40,576 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:24:40,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [436, 281, 311] total 1026 [2022-03-16 07:24:40,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764176648] [2022-03-16 07:24:40,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:24:40,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 1027 states [2022-03-16 07:24:40,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:24:40,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1027 interpolants. [2022-03-16 07:24:40,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189565, Invalid=864137, Unknown=0, NotChecked=0, Total=1053702 [2022-03-16 07:24:40,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:24:40,651 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:24:40,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 1027 states, 1027 states have (on average 2.2979552093476143) internal successors, (2360), 1026 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 07:24:40,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2022-03-16 07:24:40,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-16 07:24:40,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 386 states. [2022-03-16 07:24:40,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-16 07:33:20,156 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 [2022-03-16 07:33:20,156 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 [2022-03-16 07:33:20,157 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 [2022-03-16 07:33:20,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-16 07:33:20,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:33:20,603 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 1585 known predicates. [2022-03-16 07:33:20,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-16 07:33:20,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-16 07:33:20,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-16 07:33:20,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-16 07:33:20,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-16 07:33:20,613 INFO L732 BasicCegarLoop]: Path program histogram: [4] [2022-03-16 07:33:20,615 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 07:33:20,615 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 07:33:20,616 INFO L202 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 07:33:20 BasicIcfg [2022-03-16 07:33:20,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 07:33:20,617 INFO L158 Benchmark]: Toolchain (without parser) took 858495.71ms. Allocated memory was 168.8MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 133.2MB in the beginning and 658.3MB in the end (delta: -525.0MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-03-16 07:33:20,617 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 168.8MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 07:33:20,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.65ms. Allocated memory is still 168.8MB. Free memory was 133.2MB in the beginning and 131.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 07:33:20,617 INFO L158 Benchmark]: Boogie Preprocessor took 18.14ms. Allocated memory is still 168.8MB. Free memory was 131.6MB in the beginning and 130.7MB in the end (delta: 980.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 07:33:20,618 INFO L158 Benchmark]: RCFGBuilder took 245.87ms. Allocated memory is still 168.8MB. Free memory was 130.6MB in the beginning and 120.6MB in the end (delta: 10.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-16 07:33:20,618 INFO L158 Benchmark]: TraceAbstraction took 858209.05ms. Allocated memory was 168.8MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 120.0MB in the beginning and 658.3MB in the end (delta: -538.2MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-03-16 07:33:20,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11ms. Allocated memory is still 168.8MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.65ms. Allocated memory is still 168.8MB. Free memory was 133.2MB in the beginning and 131.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.14ms. Allocated memory is still 168.8MB. Free memory was 131.6MB in the beginning and 130.7MB in the end (delta: 980.9kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 245.87ms. Allocated memory is still 168.8MB. Free memory was 130.6MB in the beginning and 120.6MB in the end (delta: 10.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 858209.05ms. Allocated memory was 168.8MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 120.0MB in the beginning and 658.3MB in the end (delta: -538.2MB). Peak memory consumption was 1.4GB. 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 PredicateComparison was comparing new predicate (quantifier-free) to 1585 known predicates. - 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 PredicateComparison was comparing new predicate (quantifier-free) to 1585 known predicates. - 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 PredicateComparison was comparing new predicate (quantifier-free) to 1585 known predicates. - 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 PredicateComparison was comparing new predicate (quantifier-free) to 1585 known predicates. - 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 PredicateComparison was comparing new predicate (quantifier-free) to 1585 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 52 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 858.1s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 602.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1222, 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, 2.7s SatisfiabilityAnalysisTime, 251.3s InterpolantComputationTime, 4152 NumberOfCodeBlocks, 4097 NumberOfCodeBlocksAsserted, 136 NumberOfCheckSat, 6216 ConstructedInterpolants, 0 QuantifiedInterpolants, 73567 SizeOfPredicates, 12 NumberOfNonLiveVariables, 5422 ConjunctsInSsa, 477 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 363073/557340 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