/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 12:01:36,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 12:01:36,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 12:01:36,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 12:01:36,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 12:01:36,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 12:01:36,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 12:01:36,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 12:01:36,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 12:01:36,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 12:01:36,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 12:01:36,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 12:01:36,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 12:01:36,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 12:01:36,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 12:01:36,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 12:01:36,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 12:01:36,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 12:01:36,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 12:01:36,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 12:01:36,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 12:01:36,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 12:01:36,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 12:01:36,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 12:01:36,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 12:01:36,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 12:01:36,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 12:01:36,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 12:01:36,329 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.epf [2022-03-16 12:01:36,361 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 12:01:36,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 12:01:36,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 12:01:36,362 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 12:01:36,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 12:01:36,363 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 12:01:36,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 12:01:36,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 12:01:36,363 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 12:01:36,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 12:01:36,364 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 12:01:36,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 12:01:36,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 12:01:36,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 12:01:36,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 12:01:36,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 12:01:36,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 12:01:36,365 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 12:01:36,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 12:01:36,365 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 12:01:36,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 12:01:36,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 12:01:36,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 12:01:36,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 12:01:36,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 12:01:36,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 12:01:36,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 12:01:36,367 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 12:01:36,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 12:01:36,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 12:01:36,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 12:01:36,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 12:01:36,368 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 12:01:36,368 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 12:01:36,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 12:01:36,369 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 12:01:36,369 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 12:01:36,369 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 12:01:36,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 12:01:36,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 12:01:36,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 12:01:36,629 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 12:01:36,643 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 12:01:36,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl [2022-03-16 12:01:36,649 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl' [2022-03-16 12:01:36,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 12:01:36,674 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 12:01:36,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 12:01:36,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 12:01:36,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 12:01:36,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:01:36" (1/1) ... [2022-03-16 12:01:36,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:01:36" (1/1) ... [2022-03-16 12:01:36,705 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 12:01:36,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 12:01:36,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 12:01:36,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 12:01:36,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 12:01:36,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:01:36" (1/1) ... [2022-03-16 12:01:36,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:01:36" (1/1) ... [2022-03-16 12:01:36,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:01:36" (1/1) ... [2022-03-16 12:01:36,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:01:36" (1/1) ... [2022-03-16 12:01:36,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:01:36" (1/1) ... [2022-03-16 12:01:36,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:01:36" (1/1) ... [2022-03-16 12:01:36,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:01:36" (1/1) ... [2022-03-16 12:01:36,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 12:01:36,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 12:01:36,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 12:01:36,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 12:01:36,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:01:36" (1/1) ... [2022-03-16 12:01:36,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 12:01:36,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:01:36,760 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 12:01:36,773 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 12:01:36,808 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 12:01:36,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 12:01:36,809 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 12:01:36,809 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 12:01:36,810 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 12:01:36,810 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 12:01:36,810 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 12:01:36,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 12:01:36,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 12:01:36,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 12:01:36,811 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 12:01:36,812 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 12:01:36,813 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 12:01:36,868 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 12:01:36,872 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 12:01:36,963 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 12:01:36,984 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 12:01:36,984 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 12:01:36,986 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 12:01:36 BoogieIcfgContainer [2022-03-16 12:01:36,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 12:01:36,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 12:01:36,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 12:01:37,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 12:01:37,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:01:36" (1/2) ... [2022-03-16 12:01:37,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c59da08 and model type sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 12:01:37, skipping insertion in model container [2022-03-16 12:01:37,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 12:01:36" (2/2) ... [2022-03-16 12:01:37,010 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun.wvr.bpl [2022-03-16 12:01:37,015 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 12:01:37,016 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 12:01:37,016 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 12:01:37,016 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 12:01:37,085 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-16 12:01:37,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 12:01:37,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:01:37,175 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 12:01:37,176 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 12:01:37,235 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 12:01:37,244 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=true [2022-03-16 12:01:37,244 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-16 12:01:37,381 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-03-16 12:01:37,383 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:01:37,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:01:37,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-03-16 12:01:37,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:01:37,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204944875] [2022-03-16 12:01:37,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:01:37,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:01:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:01:38,039 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 12:01:38,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:01:38,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204944875] [2022-03-16 12:01:38,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204944875] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:01:38,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784588351] [2022-03-16 12:01:38,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:01:38,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:01:38,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:01:38,071 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 12:01:38,135 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 12:01:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:01:38,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-16 12:01:38,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:01:38,737 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 12:01:38,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:01:39,097 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 12:01:39,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784588351] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:01:39,098 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:01:39,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-03-16 12:01:39,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498832657] [2022-03-16 12:01:39,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:01:39,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-16 12:01:39,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:01:39,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-16 12:01:39,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-03-16 12:01:39,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:01:39,166 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:01:39,168 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 12:01:39,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:01:39,961 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-03-16 12:01:39,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:01:40,027 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 12:01:40,183 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 12:01:40,184 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:01:40,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:01:40,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-03-16 12:01:40,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:01:40,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883528487] [2022-03-16 12:01:40,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:01:40,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:01:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:01:40,413 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 12:01:40,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:01:40,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883528487] [2022-03-16 12:01:40,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883528487] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:01:40,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82937746] [2022-03-16 12:01:40,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 12:01:40,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:01:40,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:01:40,430 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 12:01:40,471 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 12:01:40,520 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 12:01:40,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:01:40,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-16 12:01:40,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:01:40,815 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 12:01:40,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:01:41,029 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 12:01:41,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82937746] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:01:41,030 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:01:41,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-16 12:01:41,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938540379] [2022-03-16 12:01:41,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:01:41,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-16 12:01:41,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:01:41,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-16 12:01:41,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-16 12:01:41,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:01:41,033 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:01:41,033 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 12:01:41,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:01:41,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:01:41,411 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-03-16 12:01:41,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:01:41,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:01:41,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-16 12:01:41,635 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 12:01:41,636 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:01:41,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:01:41,637 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-03-16 12:01:41,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:01:41,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896114538] [2022-03-16 12:01:41,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:01:41,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:01:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:01:42,174 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 12:01:42,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:01:42,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896114538] [2022-03-16 12:01:42,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896114538] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:01:42,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715873664] [2022-03-16 12:01:42,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 12:01:42,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:01:42,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:01:42,193 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 12:01:42,194 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 12:01:42,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-03-16 12:01:42,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:01:42,231 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-16 12:01:42,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:01:43,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:01:43,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:01:43,078 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 12:01:43,079 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 87 [2022-03-16 12:01:43,307 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 12:01:43,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:01:44,052 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:01:44,055 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,055 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,057 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:01:44,121 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-03-16 12:01:44,122 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 40 treesize of output 85 [2022-03-16 12:01:44,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:01:44,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:44,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:01:44,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:01:44,297 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 5 [2022-03-16 12:01:44,455 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 12:01:44,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715873664] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:01:44,456 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:01:44,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-03-16 12:01:44,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509903741] [2022-03-16 12:01:44,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:01:44,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-16 12:01:44,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:01:44,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-16 12:01:44,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2022-03-16 12:01:44,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:01:44,458 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:01:44,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 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 12:01:44,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:01:44,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:01:44,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:01:54,556 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 455 transitions and produced 264 states. [2022-03-16 12:01:54,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:01:54,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:01:54,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:01:54,585 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 12:01:54,757 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 12:01:54,758 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:01:54,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:01:54,759 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-03-16 12:01:54,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:01:54,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603728898] [2022-03-16 12:01:54,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:01:54,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:01:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:01:55,431 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 12:01:55,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:01:55,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603728898] [2022-03-16 12:01:55,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603728898] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:01:55,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690470804] [2022-03-16 12:01:55,432 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 12:01:55,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:01:55,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:01:55,444 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 12:01:55,498 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 12:01:55,532 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 12:01:55,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:01:55,534 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-16 12:01:55,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:01:56,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:01:56,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:01:56,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:56,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:01:56,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:56,411 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 52 treesize of output 30 [2022-03-16 12:01:56,463 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 12:01:56,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:01:57,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:57,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:57,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:57,621 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-03-16 12:01:57,622 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 50 treesize of output 313 [2022-03-16 12:02:19,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,469 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,469 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,475 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,481 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,481 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:19,523 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 12:02:19,524 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 35 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 126 [2022-03-16 12:02:20,053 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 12:02:20,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690470804] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:02:20,054 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:02:20,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-03-16 12:02:20,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855942301] [2022-03-16 12:02:20,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:02:20,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-16 12:02:20,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:02:20,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-16 12:02:20,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-03-16 12:02:20,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:02:20,056 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:02:20,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.255813953488372) internal successors, (97), 43 states have internal predecessors, (97), 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 12:02:20,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:02:20,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:02:20,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:02:20,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:02:31,819 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 300 states. [2022-03-16 12:02:31,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:02:31,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:02:31,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:02:31,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:02:31,841 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 12:02:32,020 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 12:02:32,020 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:02:32,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:02:32,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1662599294, now seen corresponding path program 5 times [2022-03-16 12:02:32,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:02:32,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164371144] [2022-03-16 12:02:32,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:02:32,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:02:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:02:32,623 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 12:02:32,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:02:32,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164371144] [2022-03-16 12:02:32,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164371144] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:02:32,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903412163] [2022-03-16 12:02:32,625 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 12:02:32,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:02:32,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:02:32,627 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 12:02:32,631 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 12:02:32,688 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-16 12:02:32,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:02:32,691 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 57 conjunts are in the unsatisfiable core [2022-03-16 12:02:32,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:02:33,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:02:33,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:02:33,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:02:33,809 INFO L353 Elim1Store]: treesize reduction 216, result has 3.1 percent of original size [2022-03-16 12:02:33,809 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 219 treesize of output 106 [2022-03-16 12:02:33,854 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 12:02:33,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:02:35,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:02:35,630 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 12:02:35,630 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 51 case distinctions, treesize of input 118 treesize of output 581 [2022-03-16 12:09:43,695 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 12:09:43,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903412163] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:09:43,696 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:09:43,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-03-16 12:09:43,696 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480714346] [2022-03-16 12:09:43,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:09:43,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-03-16 12:09:43,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:09:43,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-03-16 12:09:43,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-03-16 12:09:43,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:09:43,698 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:09:43,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.1372549019607843) internal successors, (109), 51 states have internal predecessors, (109), 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 12:09:43,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:09:43,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:09:43,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:09:43,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:09:43,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:09:51,486 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 199 transitions and produced 183 states. [2022-03-16 12:09:51,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:09:51,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:09:51,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:09:51,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:09:51,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-16 12:09:51,504 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 12:09:51,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:09:51,688 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:09:51,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:09:51,688 INFO L85 PathProgramCache]: Analyzing trace with hash 2079005886, now seen corresponding path program 6 times [2022-03-16 12:09:51,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:09:51,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893798296] [2022-03-16 12:09:51,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:09:51,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:09:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:09:51,842 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 12:09:51,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:09:51,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893798296] [2022-03-16 12:09:51,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893798296] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:09:51,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302539288] [2022-03-16 12:09:51,845 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 12:09:51,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:09:51,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:09:51,860 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 12:09:51,861 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 12:09:51,894 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-16 12:09:51,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:09:51,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-16 12:09:51,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:09:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 12:09:52,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:09:52,571 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 12:09:52,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302539288] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:09:52,572 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:09:52,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-03-16 12:09:52,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158516445] [2022-03-16 12:09:52,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:09:52,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-16 12:09:52,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:09:52,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-16 12:09:52,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-03-16 12:09:52,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:09:52,574 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:09:52,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.375) internal successors, (114), 48 states have internal predecessors, (114), 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 12:09:52,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:09:52,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:09:52,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:09:52,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:09:52,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-16 12:09:52,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:09:53,686 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 247 transitions and produced 232 states. [2022-03-16 12:09:53,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:09:53,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:09:53,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:09:53,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:09:53,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-16 12:09:53,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 12:09:53,714 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 12:09:53,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:09:53,895 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:09:53,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:09:53,895 INFO L85 PathProgramCache]: Analyzing trace with hash -713231340, now seen corresponding path program 7 times [2022-03-16 12:09:53,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:09:53,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872627209] [2022-03-16 12:09:53,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:09:53,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:09:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:09:54,033 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 68 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 12:09:54,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:09:54,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872627209] [2022-03-16 12:09:54,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872627209] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:09:54,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952663425] [2022-03-16 12:09:54,034 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 12:09:54,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:09:54,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:09:54,035 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 12:09:54,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 12:09:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:09:54,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-16 12:09:54,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:09:54,347 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 12:09:54,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:09:54,549 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 12:09:54,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952663425] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:09:54,550 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:09:54,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-03-16 12:09:54,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125224829] [2022-03-16 12:09:54,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:09:54,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-16 12:09:54,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:09:54,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-16 12:09:54,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-03-16 12:09:54,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:09:54,553 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:09:54,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 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 12:09:54,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:09:54,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:09:54,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:09:54,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:09:54,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-16 12:09:54,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 12:09:54,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:09:58,432 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 950 states. [2022-03-16 12:09:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:09:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:09:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:09:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:09:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 12:09:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-16 12:09:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-16 12:09:58,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-16 12:09:58,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-16 12:09:58,656 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:09:58,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:09:58,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1346980366, now seen corresponding path program 8 times [2022-03-16 12:09:58,656 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:09:58,656 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374119449] [2022-03-16 12:09:58,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:09:58,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:09:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:09:58,890 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 68 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 12:09:58,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:09:58,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374119449] [2022-03-16 12:09:58,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374119449] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:09:58,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648844617] [2022-03-16 12:09:58,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 12:09:58,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:09:58,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:09:58,896 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 12:09:58,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-16 12:09:58,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 12:09:58,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:09:58,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-16 12:09:58,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:09:59,252 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 12:09:59,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:09:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 12:09:59,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648844617] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:09:59,450 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:09:59,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-03-16 12:09:59,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735473812] [2022-03-16 12:09:59,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:09:59,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-03-16 12:09:59,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:09:59,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-03-16 12:09:59,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-03-16 12:09:59,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:09:59,452 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:09:59,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.388888888888889) internal successors, (129), 54 states have internal predecessors, (129), 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 12:09:59,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:09:59,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:09:59,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:09:59,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:09:59,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-16 12:09:59,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-16 12:09:59,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-16 12:09:59,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:10:00,101 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2344 transitions and produced 961 states. [2022-03-16 12:10:00,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:10:00,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:10:00,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:10:00,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:10:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 12:10:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-16 12:10:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-16 12:10:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-16 12:10:00,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-16 12:10:00,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:10:00,321 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:10:00,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:10:00,321 INFO L85 PathProgramCache]: Analyzing trace with hash -494438320, now seen corresponding path program 9 times [2022-03-16 12:10:00,321 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:10:00,321 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836769822] [2022-03-16 12:10:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:10:00,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:10:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:10:00,544 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 12:10:00,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:10:00,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836769822] [2022-03-16 12:10:00,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836769822] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:10:00,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528998446] [2022-03-16 12:10:00,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 12:10:00,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:10:00,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:10:00,546 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 12:10:00,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-16 12:10:00,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-16 12:10:00,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:10:00,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-16 12:10:00,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:10:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 12:10:00,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:10:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 85 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 12:10:01,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528998446] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:10:01,261 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:10:01,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-03-16 12:10:01,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203855318] [2022-03-16 12:10:01,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:10:01,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-03-16 12:10:01,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:10:01,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-03-16 12:10:01,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-03-16 12:10:01,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:10:01,264 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:10:01,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.227272727272727) internal successors, (147), 66 states have internal predecessors, (147), 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 12:10:01,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:10:01,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:10:01,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:10:01,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:10:01,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-16 12:10:01,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-16 12:10:01,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-16 12:10:01,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-16 12:10:01,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:10:01,957 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 452 transitions and produced 340 states. [2022-03-16 12:10:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:10:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:10:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:10:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:10:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 12:10:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-16 12:10:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-16 12:10:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-16 12:10:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-16 12:10:01,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-16 12:10:02,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-16 12:10:02,175 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:10:02,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:10:02,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1540285650, now seen corresponding path program 10 times [2022-03-16 12:10:02,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:10:02,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617238389] [2022-03-16 12:10:02,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:10:02,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:10:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:10:03,326 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 12:10:03,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:10:03,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617238389] [2022-03-16 12:10:03,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617238389] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:10:03,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433103199] [2022-03-16 12:10:03,326 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 12:10:03,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:10:03,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:10:03,327 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 12:10:03,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-16 12:10:03,374 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 12:10:03,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:10:03,381 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2022-03-16 12:10:03,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:10:05,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:05,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:05,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:05,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:10:05,501 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 55 disjoint index pairs (out of 91 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 51 [2022-03-16 12:10:05,549 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 12:10:05,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:10:07,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:07,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:10:12,013 INFO L353 Elim1Store]: treesize reduction 866, result has 61.2 percent of original size [2022-03-16 12:10:12,014 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 36 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 195 case distinctions, treesize of input 110 treesize of output 1393 Received shutdown request... [2022-03-16 12:16:00,851 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-16 12:16:00,853 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-16 12:16:00,862 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 12:16:00,862 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 12:16:00,862 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 12:16:00,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-16 12:16:01,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-16 12:16:01,064 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 15ms.. [2022-03-16 12:16:01,065 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-16 12:16:01,065 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-16 12:16:01,066 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-16 12:16:01,070 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-16 12:16:01,072 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 12:16:01,072 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 12:16:01,073 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 12:16:01 BasicIcfg [2022-03-16 12:16:01,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 12:16:01,074 INFO L158 Benchmark]: Toolchain (without parser) took 864400.29ms. Allocated memory was 173.0MB in the beginning and 692.1MB in the end (delta: 519.0MB). Free memory was 127.9MB in the beginning and 548.1MB in the end (delta: -420.2MB). Peak memory consumption was 454.9MB. Max. memory is 8.0GB. [2022-03-16 12:16:01,074 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 173.0MB. Free memory is still 129.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 12:16:01,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.64ms. Allocated memory is still 173.0MB. Free memory was 127.9MB in the beginning and 126.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 12:16:01,075 INFO L158 Benchmark]: Boogie Preprocessor took 17.73ms. Allocated memory is still 173.0MB. Free memory was 126.4MB in the beginning and 125.4MB in the end (delta: 950.3kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 12:16:01,075 INFO L158 Benchmark]: RCFGBuilder took 257.78ms. Allocated memory is still 173.0MB. Free memory was 125.3MB in the beginning and 116.0MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 12:16:01,079 INFO L158 Benchmark]: TraceAbstraction took 864085.31ms. Allocated memory was 173.0MB in the beginning and 692.1MB in the end (delta: 519.0MB). Free memory was 115.6MB in the beginning and 548.1MB in the end (delta: -432.5MB). Peak memory consumption was 442.3MB. Max. memory is 8.0GB. [2022-03-16 12:16:01,080 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 0.16ms. Allocated memory is still 173.0MB. Free memory is still 129.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.64ms. Allocated memory is still 173.0MB. Free memory was 127.9MB in the beginning and 126.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 17.73ms. Allocated memory is still 173.0MB. Free memory was 126.4MB in the beginning and 125.4MB in the end (delta: 950.3kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 257.78ms. Allocated memory is still 173.0MB. Free memory was 125.3MB in the beginning and 116.0MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 864085.31ms. Allocated memory was 173.0MB in the beginning and 692.1MB in the end (delta: 519.0MB). Free memory was 115.6MB in the beginning and 548.1MB in the end (delta: -432.5MB). Peak memory consumption was 442.3MB. 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 15ms.. - 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 15ms.. - 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 15ms.. - 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 15ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 863.9s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 37.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 616, 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, 0.4s SatisfiabilityAnalysisTime, 464.5s InterpolantComputationTime, 792 NumberOfCodeBlocks, 792 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 1161 ConstructedInterpolants, 22 QuantifiedInterpolants, 18436 SizeOfPredicates, 83 NumberOfNonLiveVariables, 1017 ConjunctsInSsa, 251 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 871/2193 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