/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-more/min-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 07:04:35,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 07:04:35,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 07:04:35,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 07:04:35,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 07:04:35,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 07:04:35,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 07:04:35,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 07:04:35,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 07:04:35,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 07:04:35,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 07:04:35,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 07:04:35,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 07:04:35,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 07:04:35,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 07:04:35,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 07:04:35,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 07:04:35,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 07:04:35,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 07:04:35,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 07:04:35,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 07:04:35,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 07:04:35,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 07:04:35,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 07:04:35,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 07:04:35,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 07:04:35,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 07:04:35,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 07:04:35,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-16 07:04:35,711 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 07:04:35,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 07:04:35,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 07:04:35,712 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 07:04:35,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 07:04:35,713 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 07:04:35,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 07:04:35,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 07:04:35,714 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 07:04:35,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 07:04:35,714 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 07:04:35,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 07:04:35,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 07:04:35,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 07:04:35,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 07:04:35,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 07:04:35,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 07:04:35,715 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 07:04:35,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 07:04:35,715 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 07:04:35,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 07:04:35,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 07:04:35,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 07:04:35,715 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 07:04:35,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 07:04:35,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 07:04:35,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 07:04:35,716 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 07:04:35,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 07:04:35,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 07:04:35,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 07:04:35,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 07:04:35,716 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 07:04:35,716 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 07:04:35,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 07:04:35,717 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 07:04:35,717 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-16 07:04:35,717 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 07:04:35,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 07:04:35,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 07:04:35,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 07:04:35,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 07:04:35,965 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 07:04:35,968 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 07:04:35,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-fun.wvr.bpl [2022-03-16 07:04:35,970 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-fun.wvr.bpl' [2022-03-16 07:04:36,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 07:04:36,010 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 07:04:36,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 07:04:36,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 07:04:36,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 07:04:36,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:04:36" (1/1) ... [2022-03-16 07:04:36,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:04:36" (1/1) ... [2022-03-16 07:04:36,055 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 07:04:36,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 07:04:36,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 07:04:36,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 07:04:36,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 07:04:36,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:04:36" (1/1) ... [2022-03-16 07:04:36,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:04:36" (1/1) ... [2022-03-16 07:04:36,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:04:36" (1/1) ... [2022-03-16 07:04:36,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:04:36" (1/1) ... [2022-03-16 07:04:36,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:04:36" (1/1) ... [2022-03-16 07:04:36,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:04:36" (1/1) ... [2022-03-16 07:04:36,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:04:36" (1/1) ... [2022-03-16 07:04:36,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 07:04:36,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 07:04:36,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 07:04:36,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 07:04:36,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:04:36" (1/1) ... [2022-03-16 07:04:36,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 07:04:36,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:04:36,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-16 07:04:36,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-16 07:04:36,190 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 07:04:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 07:04:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 07:04:36,191 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 07:04:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 07:04:36,191 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 07:04:36,191 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 07:04:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 07:04:36,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 07:04:36,191 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 07:04:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 07:04:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 07:04:36,196 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 07:04:36,242 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 07:04:36,243 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 07:04:36,330 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 07:04:36,340 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 07:04:36,340 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 07:04:36,342 INFO L202 PluginConnector]: Adding new model min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 07:04:36 BoogieIcfgContainer [2022-03-16 07:04:36,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 07:04:36,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 07:04:36,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 07:04:36,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 07:04:36,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:04:36" (1/2) ... [2022-03-16 07:04:36,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5c6a47 and model type min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 07:04:36, skipping insertion in model container [2022-03-16 07:04:36,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 07:04:36" (2/2) ... [2022-03-16 07:04:36,352 INFO L111 eAbstractionObserver]: Analyzing ICFG min-fun.wvr.bpl [2022-03-16 07:04:36,355 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 07:04:36,355 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 07:04:36,355 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 07:04:36,355 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 07:04:36,379 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-16 07:04:36,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 07:04:36,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:04:36,414 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-16 07:04:36,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-16 07:04:36,444 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 07:04:36,450 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-16 07:04:36,450 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-16 07:04:36,648 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-03-16 07:04:36,650 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:04:36,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:04:36,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-03-16 07:04:36,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:04:36,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575027605] [2022-03-16 07:04:36,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:04:36,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:04:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:04:36,981 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-16 07:04:36,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:04:36,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575027605] [2022-03-16 07:04:36,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575027605] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:04:36,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370384507] [2022-03-16 07:04:36,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:04:36,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:04:36,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:04:36,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:04:36,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 07:04:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:04:37,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-16 07:04:37,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:04:37,346 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 07:04:37,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:04:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 07:04:37,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370384507] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:04:37,559 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:04:37,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-03-16 07:04:37,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673406031] [2022-03-16 07:04:37,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:04:37,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-16 07:04:37,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:04:37,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-16 07:04:37,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-03-16 07:04:37,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:04:37,589 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:04:37,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 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 07:04:37,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:04:38,067 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-03-16 07:04:38,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:04:38,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-16 07:04:38,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-16 07:04:38,282 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:04:38,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:04:38,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-03-16 07:04:38,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:04:38,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847896717] [2022-03-16 07:04:38,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:04:38,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:04:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:04:38,407 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:04:38,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:04:38,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847896717] [2022-03-16 07:04:38,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847896717] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:04:38,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498639749] [2022-03-16 07:04:38,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 07:04:38,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:04:38,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:04:38,409 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:04:38,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 07:04:38,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 07:04:38,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:04:38,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-16 07:04:38,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:04:38,634 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:04:38,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:04:38,826 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:04:38,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498639749] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:04:38,826 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:04:38,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-16 07:04:38,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121868883] [2022-03-16 07:04:38,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:04:38,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-16 07:04:38,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:04:38,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-16 07:04:38,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-16 07:04:38,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:04:38,828 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:04:38,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 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 07:04:38,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:04:38,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:04:39,484 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-03-16 07:04:39,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:04:39,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:04:39,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 07:04:39,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:04:39,686 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:04:39,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:04:39,686 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-03-16 07:04:39,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:04:39,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900646953] [2022-03-16 07:04:39,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:04:39,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:04:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:04:43,223 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:04:43,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:04:43,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900646953] [2022-03-16 07:04:43,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900646953] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:04:43,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538623495] [2022-03-16 07:04:43,224 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 07:04:43,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:04:43,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:04:43,226 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:04:43,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 07:04:43,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-03-16 07:04:43,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:04:43,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 43 conjunts are in the unsatisfiable core [2022-03-16 07:04:43,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:04:53,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:04:53,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:04:53,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:04:53,527 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 07:04:53,528 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 487 treesize of output 375 [2022-03-16 07:06:08,059 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:06:08,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:06:24,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:06:24,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:06:24,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:06:24,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:06:24,598 INFO L353 Elim1Store]: treesize reduction 32, result has 77.3 percent of original size [2022-03-16 07:06:24,599 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 22 case distinctions, treesize of input 1917 treesize of output 1067 [2022-03-16 07:12:27,072 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:12:27,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538623495] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:12:27,073 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:12:27,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 37 [2022-03-16 07:12:27,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561376757] [2022-03-16 07:12:27,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:12:27,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-03-16 07:12:27,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:12:27,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-03-16 07:12:27,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1214, Unknown=0, NotChecked=0, Total=1332 [2022-03-16 07:12:27,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:12:27,075 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:12:27,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.3783783783783785) internal successors, (88), 37 states have internal predecessors, (88), 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 07:12:27,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:12:27,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:12:27,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:12:43,780 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 157 transitions and produced 141 states. [2022-03-16 07:12:43,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:12:43,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:12:43,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 07:12:43,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 07:12:43,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:12:43,990 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:12:43,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:12:43,991 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-03-16 07:12:43,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:12:43,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605113084] [2022-03-16 07:12:43,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:12:43,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:12:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:14:25,926 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:14:25,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:14:25,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605113084] [2022-03-16 07:14:25,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605113084] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:14:25,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025119532] [2022-03-16 07:14:25,927 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 07:14:25,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:14:25,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:14:25,935 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:14:25,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 07:14:25,999 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 07:14:25,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:14:26,000 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-16 07:14:26,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:14:34,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:14:34,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:14:34,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:34,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:14:34,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:34,365 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 533 [2022-03-16 07:14:38,288 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:14:38,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:18:39,550 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:18:39,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:18:39,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:18:40,051 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-03-16 07:18:40,052 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 31007 treesize of output 14129 Received shutdown request... [2022-03-16 07:19:08,672 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-16 07:19:08,675 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-16 07:19:08,679 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 07:19:08,679 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 07:19:08,680 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 07:19:08,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-16 07:19:08,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:19:08,876 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 39 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 21ms.. [2022-03-16 07:19:08,877 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-16 07:19:08,878 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-16 07:19:08,878 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-16 07:19:08,882 INFO L732 BasicCegarLoop]: Path program histogram: [4] [2022-03-16 07:19:08,884 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 07:19:08,884 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 07:19:08,885 INFO L202 PluginConnector]: Adding new model min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 07:19:08 BasicIcfg [2022-03-16 07:19:08,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 07:19:08,886 INFO L158 Benchmark]: Toolchain (without parser) took 872876.08ms. Allocated memory was 198.2MB in the beginning and 1.1GB in the end (delta: 923.8MB). Free memory was 158.6MB in the beginning and 641.6MB in the end (delta: -483.0MB). Peak memory consumption was 698.7MB. Max. memory is 8.0GB. [2022-03-16 07:19:08,886 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.34ms. Allocated memory is still 198.2MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 07:19:08,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.00ms. Allocated memory is still 198.2MB. Free memory was 158.5MB in the beginning and 157.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 07:19:08,887 INFO L158 Benchmark]: Boogie Preprocessor took 30.19ms. Allocated memory is still 198.2MB. Free memory was 157.0MB in the beginning and 156.0MB in the end (delta: 941.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 07:19:08,887 INFO L158 Benchmark]: RCFGBuilder took 250.96ms. Allocated memory is still 198.2MB. Free memory was 155.9MB in the beginning and 146.5MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 07:19:08,888 INFO L158 Benchmark]: TraceAbstraction took 872542.48ms. Allocated memory was 198.2MB in the beginning and 1.1GB in the end (delta: 923.8MB). Free memory was 145.9MB in the beginning and 641.6MB in the end (delta: -495.7MB). Peak memory consumption was 686.1MB. Max. memory is 8.0GB. [2022-03-16 07:19:08,889 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 0.34ms. Allocated memory is still 198.2MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.00ms. Allocated memory is still 198.2MB. Free memory was 158.5MB in the beginning and 157.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.19ms. Allocated memory is still 198.2MB. Free memory was 157.0MB in the beginning and 156.0MB in the end (delta: 941.8kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 250.96ms. Allocated memory is still 198.2MB. Free memory was 155.9MB in the beginning and 146.5MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 872542.48ms. Allocated memory was 198.2MB in the beginning and 1.1GB in the end (delta: 923.8MB). Free memory was 145.9MB in the beginning and 641.6MB in the end (delta: -495.7MB). Peak memory consumption was 686.1MB. 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: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 39 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 21ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 39 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 21ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 39 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 21ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 39 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 21ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 872.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 18.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 90, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 468.4s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 279 ConstructedInterpolants, 16 QuantifiedInterpolants, 24482 SizeOfPredicates, 30 NumberOfNonLiveVariables, 249 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 9 InterpolantComputations, 0 PerfectInterpolantSequences, 40/159 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