/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-bad/threaded-sum-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 06:50:00,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 06:50:00,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 06:50:00,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 06:50:00,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 06:50:00,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 06:50:00,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 06:50:00,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 06:50:00,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 06:50:00,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 06:50:00,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 06:50:00,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 06:50:00,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 06:50:00,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 06:50:00,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 06:50:00,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 06:50:00,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 06:50:00,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 06:50:00,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 06:50:00,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 06:50:00,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 06:50:00,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 06:50:00,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 06:50:00,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 06:50:00,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 06:50:00,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 06:50:00,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 06:50:00,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 06:50:00,885 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 06:50:00,905 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 06:50:00,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 06:50:00,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 06:50:00,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 06:50:00,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 06:50:00,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 06:50:00,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 06:50:00,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 06:50:00,909 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 06:50:00,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 06:50:00,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 06:50:00,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 06:50:00,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 06:50:00,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 06:50:00,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 06:50:00,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 06:50:00,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 06:50:00,910 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 06:50:00,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 06:50:00,911 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 06:50:00,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 06:50:00,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 06:50:00,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 06:50:00,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 06:50:00,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 06:50:00,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 06:50:00,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 06:50:00,913 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 06:50:00,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 06:50:00,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 06:50:00,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 06:50:00,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 06:50:00,913 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 06:50:00,914 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 06:50:00,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 06:50:00,914 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 06:50:00,914 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-16 06:50:00,914 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 06:50:00,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 06:50:01,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 06:50:01,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 06:50:01,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 06:50:01,146 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 06:50:01,149 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 06:50:01,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/threaded-sum-2.wvr.bpl [2022-03-16 06:50:01,150 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/threaded-sum-2.wvr.bpl' [2022-03-16 06:50:01,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 06:50:01,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 06:50:01,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 06:50:01,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 06:50:01,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 06:50:01,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:50:01" (1/1) ... [2022-03-16 06:50:01,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:50:01" (1/1) ... [2022-03-16 06:50:01,201 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 06:50:01,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 06:50:01,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 06:50:01,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 06:50:01,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 06:50:01,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:50:01" (1/1) ... [2022-03-16 06:50:01,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:50:01" (1/1) ... [2022-03-16 06:50:01,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:50:01" (1/1) ... [2022-03-16 06:50:01,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:50:01" (1/1) ... [2022-03-16 06:50:01,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:50:01" (1/1) ... [2022-03-16 06:50:01,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:50:01" (1/1) ... [2022-03-16 06:50:01,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:50:01" (1/1) ... [2022-03-16 06:50:01,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 06:50:01,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 06:50:01,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 06:50:01,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 06:50:01,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:50:01" (1/1) ... [2022-03-16 06:50:01,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 06:50:01,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:50:01,246 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 06:50:01,260 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 06:50:01,278 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 06:50:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 06:50:01,279 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 06:50:01,279 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 06:50:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 06:50:01,279 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 06:50:01,279 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 06:50:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 06:50:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 06:50:01,281 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 06:50:01,325 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 06:50:01,327 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 06:50:01,447 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 06:50:01,459 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 06:50:01,459 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 06:50:01,460 INFO L202 PluginConnector]: Adding new model threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 06:50:01 BoogieIcfgContainer [2022-03-16 06:50:01,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 06:50:01,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 06:50:01,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 06:50:01,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 06:50:01,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:50:01" (1/2) ... [2022-03-16 06:50:01,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b129b66 and model type threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 06:50:01, skipping insertion in model container [2022-03-16 06:50:01,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 06:50:01" (2/2) ... [2022-03-16 06:50:01,466 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-2.wvr.bpl [2022-03-16 06:50:01,469 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 06:50:01,470 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 06:50:01,470 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 06:50:01,470 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 06:50:01,494 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-16 06:50:01,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 06:50:01,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:50:01,543 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 06:50:01,549 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 06:50:01,571 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 06:50:01,577 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 06:50:01,577 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 06:50:01,679 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 94 transitions and produced 86 states. [2022-03-16 06:50:01,682 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 06:50:01,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:50:01,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1294080705, now seen corresponding path program 1 times [2022-03-16 06:50:01,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:50:01,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945249233] [2022-03-16 06:50:01,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:50:01,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:50:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:50:01,910 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-16 06:50:01,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:50:01,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945249233] [2022-03-16 06:50:01,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945249233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 06:50:01,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 06:50:01,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 06:50:01,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394722643] [2022-03-16 06:50:01,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 06:50:01,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 06:50:01,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:50:01,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 06:50:01,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 06:50:01,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:50:01,947 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:50:01,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 06:50:01,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:50:02,108 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 111 transitions and produced 102 states. [2022-03-16 06:50:02,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:50:02,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 06:50:02,109 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 06:50:02,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:50:02,112 INFO L85 PathProgramCache]: Analyzing trace with hash -551865401, now seen corresponding path program 2 times [2022-03-16 06:50:02,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:50:02,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811363092] [2022-03-16 06:50:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:50:02,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:50:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:50:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-03-16 06:50:02,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:50:02,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811363092] [2022-03-16 06:50:02,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811363092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 06:50:02,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 06:50:02,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 06:50:02,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343851950] [2022-03-16 06:50:02,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 06:50:02,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 06:50:02,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:50:02,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 06:50:02,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 06:50:02,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:50:02,202 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:50:02,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 06:50:02,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:50:02,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:50:02,237 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 94 transitions and produced 87 states. [2022-03-16 06:50:02,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:50:02,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:50:02,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-16 06:50:02,238 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 06:50:02,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:50:02,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1969407751, now seen corresponding path program 3 times [2022-03-16 06:50:02,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:50:02,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821098671] [2022-03-16 06:50:02,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:50:02,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:50:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:50:02,938 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-16 06:50:02,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:50:02,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821098671] [2022-03-16 06:50:02,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821098671] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 06:50:02,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234676855] [2022-03-16 06:50:02,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 06:50:02,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:50:02,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:50:02,957 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 06:50:02,979 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 06:50:03,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-03-16 06:50:03,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 06:50:03,024 WARN L261 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-16 06:50:03,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 06:50:05,945 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 06:50:05,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 06:50:07,270 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 06:50:07,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234676855] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 06:50:07,270 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 06:50:07,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23, 22] total 56 [2022-03-16 06:50:07,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613976574] [2022-03-16 06:50:07,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 06:50:07,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-03-16 06:50:07,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:50:07,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-03-16 06:50:07,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=370, Invalid=2822, Unknown=0, NotChecked=0, Total=3192 [2022-03-16 06:50:07,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:50:07,274 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:50:07,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 1.8070175438596492) internal successors, (103), 56 states have internal predecessors, (103), 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 06:50:07,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:50:07,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:50:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:50:10,015 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 248 transitions and produced 196 states. [2022-03-16 06:50:10,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:50:10,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:50:10,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-16 06:50:10,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 06:50:10,217 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,SelfDestructingSolverStorable2 [2022-03-16 06:50:10,217 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 06:50:10,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:50:10,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1603842339, now seen corresponding path program 4 times [2022-03-16 06:50:10,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:50:10,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571203388] [2022-03-16 06:50:10,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:50:10,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:50:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:50:12,647 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 12 proven. 296 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-03-16 06:50:12,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:50:12,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571203388] [2022-03-16 06:50:12,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571203388] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 06:50:12,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653032701] [2022-03-16 06:50:12,648 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 06:50:12,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:50:12,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:50:12,654 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 06:50:12,654 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 06:50:12,699 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 06:50:12,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 06:50:12,701 WARN L261 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 53 conjunts are in the unsatisfiable core [2022-03-16 06:50:12,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 06:50:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 412 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 06:50:21,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 06:50:42,694 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 412 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 06:50:42,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653032701] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 06:50:42,694 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 06:50:42,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 38, 38] total 86 [2022-03-16 06:50:42,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659135924] [2022-03-16 06:50:42,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 06:50:42,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-03-16 06:50:42,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:50:42,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-03-16 06:50:42,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=981, Invalid=6501, Unknown=0, NotChecked=0, Total=7482 [2022-03-16 06:50:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:50:42,698 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:50:42,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 1.9080459770114941) internal successors, (166), 86 states have internal predecessors, (166), 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 06:50:42,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:50:42,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:50:42,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-03-16 06:50:42,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:50:54,105 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 343 transitions and produced 263 states. [2022-03-16 06:50:54,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:50:54,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:50:54,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 06:50:54,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 06:50:54,134 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 06:50:54,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:50:54,307 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 06:50:54,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:50:54,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1770855511, now seen corresponding path program 5 times [2022-03-16 06:50:54,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:50:54,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426080765] [2022-03-16 06:50:54,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:50:54,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:50:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:50:55,403 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 51 proven. 670 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-03-16 06:50:55,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:50:55,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426080765] [2022-03-16 06:50:55,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426080765] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 06:50:55,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304039293] [2022-03-16 06:50:55,404 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 06:50:55,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:50:55,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:50:55,419 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 06:50:55,441 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 06:50:55,511 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2022-03-16 06:50:55,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 06:50:55,514 WARN L261 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 76 conjunts are in the unsatisfiable core [2022-03-16 06:50:55,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 06:51:15,333 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 0 proven. 901 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 06:51:15,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 06:51:20,073 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 0 proven. 901 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 06:51:20,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304039293] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 06:51:20,077 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 06:51:20,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 55, 54] total 124 [2022-03-16 06:51:20,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777216103] [2022-03-16 06:51:20,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 06:51:20,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 125 states [2022-03-16 06:51:20,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:51:20,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2022-03-16 06:51:20,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1738, Invalid=13762, Unknown=0, NotChecked=0, Total=15500 [2022-03-16 06:51:20,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:51:20,085 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:51:20,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 125 states, 125 states have (on average 1.848) internal successors, (231), 124 states have internal predecessors, (231), 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 06:51:20,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:51:20,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:51:20,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 06:51:20,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-03-16 06:51:20,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:51:39,452 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 338 transitions and produced 259 states. [2022-03-16 06:51:39,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:51:39,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:51:39,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 06:51:39,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 06:51:39,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-16 06:51:39,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-16 06:51:39,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:51:39,664 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 06:51:39,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:51:39,664 INFO L85 PathProgramCache]: Analyzing trace with hash 53517685, now seen corresponding path program 6 times [2022-03-16 06:51:39,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:51:39,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859715470] [2022-03-16 06:51:39,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:51:39,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:51:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:51:40,300 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 31 proven. 728 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-03-16 06:51:40,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:51:40,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859715470] [2022-03-16 06:51:40,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859715470] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 06:51:40,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879864195] [2022-03-16 06:51:40,301 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 06:51:40,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:51:40,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:51:40,307 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 06:51:40,308 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 06:51:40,370 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2022-03-16 06:51:40,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 06:51:40,372 WARN L261 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 71 conjunts are in the unsatisfiable core [2022-03-16 06:51:40,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 06:52:00,456 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 06:52:00,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 06:52:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 06:52:05,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879864195] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 06:52:05,249 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 06:52:05,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 52, 52] total 120 [2022-03-16 06:52:05,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243080866] [2022-03-16 06:52:05,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 06:52:05,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 121 states [2022-03-16 06:52:05,250 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:52:05,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2022-03-16 06:52:05,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1556, Invalid=12964, Unknown=0, NotChecked=0, Total=14520 [2022-03-16 06:52:05,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:52:05,254 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:52:05,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 121 states, 121 states have (on average 1.8925619834710743) internal successors, (229), 120 states have internal predecessors, (229), 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 06:52:05,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:52:05,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:52:05,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 06:52:05,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-03-16 06:52:05,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-03-16 06:52:05,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:52:36,601 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 915 transitions and produced 595 states. [2022-03-16 06:52:36,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:52:36,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:52:36,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 06:52:36,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-16 06:52:36,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-03-16 06:52:36,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-16 06:52:36,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 06:52:36,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:52:36,815 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 06:52:36,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:52:36,816 INFO L85 PathProgramCache]: Analyzing trace with hash 2133751577, now seen corresponding path program 7 times [2022-03-16 06:52:36,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:52:36,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730236166] [2022-03-16 06:52:36,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:52:36,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:52:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:52:38,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3674 backedges. 201 proven. 2535 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2022-03-16 06:52:38,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:52:38,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730236166] [2022-03-16 06:52:38,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730236166] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 06:52:38,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951236792] [2022-03-16 06:52:38,486 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 06:52:38,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:52:38,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:52:38,488 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 06:52:38,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 06:52:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:52:38,644 WARN L261 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 136 conjunts are in the unsatisfiable core [2022-03-16 06:52:38,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 06:54:44,047 INFO L134 CoverageAnalysis]: Checked inductivity of 3674 backedges. 0 proven. 3674 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 06:54:44,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 06:54:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3674 backedges. 0 proven. 3674 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 06:54:59,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951236792] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 06:54:59,504 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 06:54:59,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 99, 99] total 212 [2022-03-16 06:54:59,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699738713] [2022-03-16 06:54:59,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 06:54:59,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 213 states [2022-03-16 06:54:59,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:54:59,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2022-03-16 06:54:59,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5256, Invalid=39900, Unknown=0, NotChecked=0, Total=45156 [2022-03-16 06:54:59,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:54:59,513 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:54:59,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 213 states, 213 states have (on average 1.8544600938967135) internal successors, (395), 212 states have internal predecessors, (395), 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 06:54:59,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:54:59,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:54:59,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 06:54:59,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-16 06:54:59,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2022-03-16 06:54:59,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-03-16 06:54:59,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:55:50,489 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1060 transitions and produced 673 states. [2022-03-16 06:55:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:55:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:55:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 06:55:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-16 06:55:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-03-16 06:55:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-16 06:55:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-16 06:55:50,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 06:55:50,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:55:50,698 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 06:55:50,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:55:50,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1499600299, now seen corresponding path program 8 times [2022-03-16 06:55:50,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:55:50,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646279390] [2022-03-16 06:55:50,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:55:50,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:55:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:55:59,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3674 backedges. 288 proven. 2324 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-03-16 06:55:59,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:55:59,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646279390] [2022-03-16 06:55:59,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646279390] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 06:55:59,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839487949] [2022-03-16 06:55:59,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 06:55:59,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:55:59,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:55:59,241 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 06:55:59,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 06:55:59,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 06:55:59,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 06:55:59,484 WARN L261 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 130 conjunts are in the unsatisfiable core [2022-03-16 06:55:59,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 06:59:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3674 backedges. 0 proven. 3674 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 06:59:04,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:03:53,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3674 backedges. 0 proven. 3674 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:03:53,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839487949] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:03:53,252 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:03:53,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 98, 98] total 210 [2022-03-16 07:03:53,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334827210] [2022-03-16 07:03:53,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:03:53,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 211 states [2022-03-16 07:03:53,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:03:53,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 211 interpolants. [2022-03-16 07:03:53,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4783, Invalid=39527, Unknown=0, NotChecked=0, Total=44310 [2022-03-16 07:03:53,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:03:53,260 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:03:53,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 211 states, 211 states have (on average 1.872037914691943) internal successors, (395), 210 states have internal predecessors, (395), 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 07:03:53,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 07:03:53,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 07:03:53,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 07:03:53,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-16 07:03:53,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2022-03-16 07:03:53,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2022-03-16 07:03:53,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2022-03-16 07:03:53,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-16 07:04:31,759 WARN L244 SmtUtils]: Removed 8 from assertion stack [2022-03-16 07:04:31,760 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 07:04:31,769 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 07:04:31,769 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 07:04:31,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-16 07:04:31,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:04:31,960 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1563 for 2611ms.. [2022-03-16 07:04:31,962 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-16 07:04:31,962 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 07:04:31,963 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-16 07:04:31,972 INFO L732 BasicCegarLoop]: Path program histogram: [8] [2022-03-16 07:04:31,974 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 07:04:31,974 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 07:04:31,976 INFO L202 PluginConnector]: Adding new model threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 07:04:31 BasicIcfg [2022-03-16 07:04:31,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 07:04:31,977 INFO L158 Benchmark]: Toolchain (without parser) took 870801.93ms. Allocated memory was 190.8MB in the beginning and 1.1GB in the end (delta: 896.5MB). Free memory was 156.3MB in the beginning and 429.0MB in the end (delta: -272.8MB). Peak memory consumption was 625.3MB. Max. memory is 8.0GB. [2022-03-16 07:04:31,977 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 157.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 07:04:31,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.20ms. Allocated memory is still 190.8MB. Free memory was 156.1MB in the beginning and 154.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 07:04:31,978 INFO L158 Benchmark]: Boogie Preprocessor took 11.98ms. Allocated memory is still 190.8MB. Free memory was 154.7MB in the beginning and 153.8MB in the end (delta: 905.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 07:04:31,978 INFO L158 Benchmark]: RCFGBuilder took 243.59ms. Allocated memory is still 190.8MB. Free memory was 153.6MB in the beginning and 144.6MB in the end (delta: 9.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 07:04:31,978 INFO L158 Benchmark]: TraceAbstraction took 870514.91ms. Allocated memory was 190.8MB in the beginning and 1.1GB in the end (delta: 896.5MB). Free memory was 144.1MB in the beginning and 429.0MB in the end (delta: -285.0MB). Peak memory consumption was 612.7MB. Max. memory is 8.0GB. [2022-03-16 07:04:31,980 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 190.8MB. Free memory is still 157.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.20ms. Allocated memory is still 190.8MB. Free memory was 156.1MB in the beginning and 154.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.98ms. Allocated memory is still 190.8MB. Free memory was 154.7MB in the beginning and 153.8MB in the end (delta: 905.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 243.59ms. Allocated memory is still 190.8MB. Free memory was 153.6MB in the beginning and 144.6MB in the end (delta: 9.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 870514.91ms. Allocated memory was 190.8MB in the beginning and 1.1GB in the end (delta: 896.5MB). Free memory was 144.1MB in the beginning and 429.0MB in the end (delta: -285.0MB). Peak memory consumption was 612.7MB. 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: 55]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1563 for 2611ms.. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1563 for 2611ms.. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1563 for 2611ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 34 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 870.4s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 154.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 395, 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: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 712.8s InterpolantComputationTime, 1412 NumberOfCodeBlocks, 1412 NumberOfCodeBlocksAsserted, 68 NumberOfCheckSat, 2055 ConstructedInterpolants, 0 QuantifiedInterpolants, 304904 SizeOfPredicates, 54 NumberOfNonLiveVariables, 865 ConjunctsInSsa, 495 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 3163/29043 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