/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 22:18:51,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 22:18:51,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 22:18:51,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 22:18:51,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 22:18:51,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 22:18:51,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 22:18:51,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 22:18:51,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 22:18:51,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 22:18:51,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 22:18:51,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 22:18:51,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 22:18:51,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 22:18:51,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 22:18:51,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 22:18:51,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 22:18:51,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 22:18:51,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 22:18:51,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 22:18:51,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 22:18:51,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 22:18:51,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 22:18:51,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 22:18:51,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 22:18:51,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 22:18:51,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 22:18:51,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 22:18:51,178 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-MCRwithoutDepranks-Lazy.epf [2022-03-16 22:18:51,197 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 22:18:51,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 22:18:51,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 22:18:51,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 22:18:51,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 22:18:51,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 22:18:51,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 22:18:51,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 22:18:51,199 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 22:18:51,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 22:18:51,200 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 22:18:51,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 22:18:51,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 22:18:51,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 22:18:51,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 22:18:51,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 22:18:51,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 22:18:51,200 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 22:18:51,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 22:18:51,201 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 22:18:51,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 22:18:51,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 22:18:51,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 22:18:51,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 22:18:51,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 22:18:51,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:18:51,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 22:18:51,202 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 22:18:51,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 22:18:51,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 22:18:51,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 22:18:51,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 22:18:51,202 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 22:18:51,202 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 22:18:51,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 22:18:51,203 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 22:18:51,203 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 22:18:51,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 22:18:51,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 22:18:51,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 22:18:51,398 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 22:18:51,399 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 22:18:51,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl [2022-03-16 22:18:51,401 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl' [2022-03-16 22:18:51,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 22:18:51,423 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 22:18:51,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 22:18:51,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 22:18:51,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 22:18:51,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:18:51" (1/1) ... [2022-03-16 22:18:51,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:18:51" (1/1) ... [2022-03-16 22:18:51,449 INFO L137 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 22:18:51,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 22:18:51,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 22:18:51,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 22:18:51,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 22:18:51,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:18:51" (1/1) ... [2022-03-16 22:18:51,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:18:51" (1/1) ... [2022-03-16 22:18:51,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:18:51" (1/1) ... [2022-03-16 22:18:51,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:18:51" (1/1) ... [2022-03-16 22:18:51,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:18:51" (1/1) ... [2022-03-16 22:18:51,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:18:51" (1/1) ... [2022-03-16 22:18:51,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:18:51" (1/1) ... [2022-03-16 22:18:51,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 22:18:51,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 22:18:51,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 22:18:51,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 22:18:51,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:18:51" (1/1) ... [2022-03-16 22:18:51,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:18:51,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:18:51,495 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 22:18:51,513 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 22:18:51,536 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 22:18:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 22:18:51,536 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 22:18:51,537 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 22:18:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 22:18:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 22:18:51,537 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 22:18:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 22:18:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 22:18:51,537 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 22:18:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 22:18:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 22:18:51,538 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-16 22:18:51,538 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-16 22:18:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-16 22:18:51,538 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2022-03-16 22:18:51,538 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-03-16 22:18:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-03-16 22:18:51,539 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 22:18:51,584 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 22:18:51,585 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 22:18:51,749 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 22:18:51,764 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 22:18:51,764 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 22:18:51,766 INFO L202 PluginConnector]: Adding new model min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:18:51 BoogieIcfgContainer [2022-03-16 22:18:51,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 22:18:51,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 22:18:51,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 22:18:51,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 22:18:51,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:18:51" (1/2) ... [2022-03-16 22:18:51,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2dca0e and model type min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:18:51, skipping insertion in model container [2022-03-16 22:18:51,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:18:51" (2/2) ... [2022-03-16 22:18:51,773 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-inc-dec.wvr.bpl [2022-03-16 22:18:51,777 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 22:18:51,777 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 22:18:51,777 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 22:18:51,777 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 22:18:51,818 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-03-16 22:18:51,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 22:18:51,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:18:51,867 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 22:18:51,887 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 22:18:51,915 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 22:18:51,925 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-16 22:18:51,925 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-03-16 22:18:52,625 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1004 transitions and produced 940 states. [2022-03-16 22:18:52,628 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-16 22:18:52,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:18:52,637 INFO L85 PathProgramCache]: Analyzing trace with hash -807195849, now seen corresponding path program 1 times [2022-03-16 22:18:52,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:18:52,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218856567] [2022-03-16 22:18:52,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:18:52,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:18:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:18:55,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4948 backedges. 2684 proven. 2256 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-16 22:18:55,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:18:55,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218856567] [2022-03-16 22:18:55,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218856567] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:18:55,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773505869] [2022-03-16 22:18:55,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:18:55,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:18:55,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:18:55,258 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 22:18:55,259 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 22:18:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:18:55,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 31 conjunts are in the unsatisfiable core [2022-03-16 22:18:55,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:18:55,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4948 backedges. 2838 proven. 4 refuted. 0 times theorem prover too weak. 2106 trivial. 0 not checked. [2022-03-16 22:18:55,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:18:57,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4948 backedges. 2838 proven. 4 refuted. 0 times theorem prover too weak. 2106 trivial. 0 not checked. [2022-03-16 22:18:57,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773505869] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:18:57,062 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:18:57,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 23, 23] total 91 [2022-03-16 22:18:57,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605968856] [2022-03-16 22:18:57,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:18:57,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-03-16 22:18:57,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:18:57,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-03-16 22:18:57,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2058, Invalid=6314, Unknown=0, NotChecked=0, Total=8372 [2022-03-16 22:18:57,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:18:57,098 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:18:57,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 2.9130434782608696) internal successors, (268), 91 states have internal predecessors, (268), 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 22:18:57,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:18:59,748 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1605 transitions and produced 1561 states. [2022-03-16 22:18:59,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-16 22:18:59,768 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 22:18:59,955 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 22:18:59,956 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-16 22:18:59,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:18:59,957 INFO L85 PathProgramCache]: Analyzing trace with hash -925398163, now seen corresponding path program 2 times [2022-03-16 22:18:59,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:18:59,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433286035] [2022-03-16 22:18:59,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:18:59,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:19:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:19:03,468 INFO L134 CoverageAnalysis]: Checked inductivity of 8042 backedges. 4721 proven. 3305 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-16 22:19:03,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:19:03,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433286035] [2022-03-16 22:19:03,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433286035] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:19:03,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740232104] [2022-03-16 22:19:03,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:19:03,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:19:03,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:19:03,471 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 22:19:03,471 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 22:19:03,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:19:03,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:19:03,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-16 22:19:03,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:19:06,111 INFO L134 CoverageAnalysis]: Checked inductivity of 8042 backedges. 3279 proven. 441 refuted. 0 times theorem prover too weak. 4322 trivial. 0 not checked. [2022-03-16 22:19:06,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:19:06,596 INFO L134 CoverageAnalysis]: Checked inductivity of 8042 backedges. 3279 proven. 441 refuted. 0 times theorem prover too weak. 4322 trivial. 0 not checked. [2022-03-16 22:19:06,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740232104] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:19:06,598 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:19:06,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 45, 45] total 146 [2022-03-16 22:19:06,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791664826] [2022-03-16 22:19:06,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:19:06,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 147 states [2022-03-16 22:19:06,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:19:06,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2022-03-16 22:19:06,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3285, Invalid=18177, Unknown=0, NotChecked=0, Total=21462 [2022-03-16 22:19:06,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:19:06,610 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:19:06,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 147 states, 147 states have (on average 2.3945578231292517) internal successors, (352), 146 states have internal predecessors, (352), 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 22:19:06,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-16 22:19:06,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.