/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-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 12:00:13,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 12:00:13,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 12:00:13,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 12:00:13,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 12:00:13,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 12:00:13,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 12:00:13,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 12:00:13,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 12:00:13,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 12:00:13,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 12:00:13,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 12:00:13,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 12:00:13,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 12:00:13,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 12:00:13,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 12:00:13,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 12:00:13,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 12:00:13,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 12:00:13,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 12:00:13,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 12:00:13,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 12:00:13,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 12:00:13,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 12:00:13,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 12:00:13,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 12:00:13,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 12:00:13,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 12:00:13,581 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 12:00:13,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 12:00:13,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 12:00:13,599 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 12:00:13,599 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 12:00:13,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 12:00:13,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 12:00:13,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 12:00:13,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 12:00:13,601 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 12:00:13,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 12:00:13,602 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 12:00:13,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 12:00:13,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 12:00:13,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 12:00:13,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 12:00:13,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 12:00:13,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 12:00:13,603 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 12:00:13,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 12:00:13,603 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 12:00:13,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 12:00:13,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 12:00:13,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 12:00:13,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 12:00:13,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 12:00:13,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 12:00:13,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 12:00:13,604 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 12:00:13,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 12:00:13,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 12:00:13,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 12:00:13,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 12:00:13,604 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 12:00:13,605 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 12:00:13,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 12:00:13,605 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 12:00:13,605 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 12:00:13,605 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 12:00:13,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 12:00:13,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 12:00:13,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 12:00:13,850 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 12:00:13,852 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 12:00:13,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl [2022-03-16 12:00:13,853 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl' [2022-03-16 12:00:13,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 12:00:13,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 12:00:13,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 12:00:13,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 12:00:13,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 12:00:13,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:00:13" (1/1) ... [2022-03-16 12:00:13,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:00:13" (1/1) ... [2022-03-16 12:00:13,907 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 12:00:13,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 12:00:13,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 12:00:13,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 12:00:13,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 12:00:13,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:00:13" (1/1) ... [2022-03-16 12:00:13,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:00:13" (1/1) ... [2022-03-16 12:00:13,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:00:13" (1/1) ... [2022-03-16 12:00:13,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:00:13" (1/1) ... [2022-03-16 12:00:13,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:00:13" (1/1) ... [2022-03-16 12:00:13,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:00:13" (1/1) ... [2022-03-16 12:00:13,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:00:13" (1/1) ... [2022-03-16 12:00:13,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 12:00:13,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 12:00:13,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 12:00:13,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 12:00:13,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:00:13" (1/1) ... [2022-03-16 12:00:13,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 12:00:13,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:00:13,985 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 12:00:14,017 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 12:00:14,040 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 12:00:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 12:00:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 12:00:14,040 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 12:00:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 12:00:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 12:00:14,041 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 12:00:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 12:00:14,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 12:00:14,041 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 12:00:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 12:00:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 12:00:14,043 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 12:00:14,093 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 12:00:14,097 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 12:00:14,221 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 12:00:14,234 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 12:00:14,235 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 12:00:14,238 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 12:00:14 BoogieIcfgContainer [2022-03-16 12:00:14,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 12:00:14,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 12:00:14,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 12:00:14,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 12:00:14,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 12:00:13" (1/2) ... [2022-03-16 12:00:14,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8663de and model type sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 12:00:14, skipping insertion in model container [2022-03-16 12:00:14,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 12:00:14" (2/2) ... [2022-03-16 12:00:14,252 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array-hom.wvr.bpl [2022-03-16 12:00:14,256 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 12:00:14,256 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 12:00:14,257 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 12:00:14,257 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 12:00:14,287 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-16 12:00:14,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 12:00:14,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:00:14,337 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 12:00:14,338 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 12:00:14,365 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 12:00:14,372 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 12:00:14,372 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-16 12:00:14,463 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-03-16 12:00:14,465 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:00:14,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:00:14,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-03-16 12:00:14,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:00:14,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939918808] [2022-03-16 12:00:14,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:00:14,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:00:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:00:14,799 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 12:00:14,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:00:14,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939918808] [2022-03-16 12:00:14,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939918808] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:00:14,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482483222] [2022-03-16 12:00:14,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:00:14,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:00:14,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:00:14,803 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 12:00:14,808 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 12:00:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:00:14,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-16 12:00:14,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:00:15,217 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 12:00:15,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:00:15,457 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 12:00:15,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482483222] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:00:15,458 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:00:15,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-03-16 12:00:15,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511103439] [2022-03-16 12:00:15,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:00:15,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-16 12:00:15,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:00:15,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-16 12:00:15,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-03-16 12:00:15,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:00:15,493 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:00:15,494 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 12:00:15,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:00:16,070 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-03-16 12:00:16,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:00:16,091 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 12:00:16,279 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 12:00:16,280 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:00:16,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:00:16,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-03-16 12:00:16,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:00:16,281 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400669106] [2022-03-16 12:00:16,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:00:16,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:00:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:00:16,432 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 12:00:16,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:00:16,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400669106] [2022-03-16 12:00:16,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400669106] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:00:16,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248464472] [2022-03-16 12:00:16,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 12:00:16,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:00:16,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:00:16,434 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 12:00:16,465 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 12:00:16,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 12:00:16,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:00:16,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-16 12:00:16,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:00:16,681 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 12:00:16,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:00:16,893 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 12:00:16,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248464472] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:00:16,895 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:00:16,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-16 12:00:16,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786751422] [2022-03-16 12:00:16,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:00:16,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-16 12:00:16,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:00:16,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-16 12:00:16,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-16 12:00:16,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:00:16,902 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:00:16,903 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 12:00:16,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:00:16,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:00:17,311 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-03-16 12:00:17,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:00:17,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:00:17,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 12:00:17,512 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 12:00:17,513 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:00:17,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:00:17,513 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-03-16 12:00:17,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:00:17,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664808151] [2022-03-16 12:00:17,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:00:17,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:00:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:00:18,128 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 12:00:18,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:00:18,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664808151] [2022-03-16 12:00:18,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664808151] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:00:18,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264330995] [2022-03-16 12:00:18,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 12:00:18,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:00:18,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:00:18,131 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 12:00:18,132 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 12:00:18,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-03-16 12:00:18,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:00:18,170 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-16 12:00:18,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:00:18,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:00:18,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:00:19,015 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 12:00:19,016 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 12:00:19,272 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 12:00:19,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:00:20,038 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:00:20,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:00:20,105 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-03-16 12:00:20,106 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 12:00:20,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,278 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,278 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:00:20,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:20,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:00:20,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:00:20,288 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 12:00:20,442 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 12:00:20,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264330995] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:00:20,443 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:00:20,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-03-16 12:00:20,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292798220] [2022-03-16 12:00:20,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:00:20,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-16 12:00:20,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:00:20,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-16 12:00:20,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2022-03-16 12:00:20,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:00:20,446 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:00:20,446 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 12:00:20,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:00:20,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:00:20,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:00:29,632 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 455 transitions and produced 264 states. [2022-03-16 12:00:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:00:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:00:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:00:29,652 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 12:00:29,833 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 12:00:29,833 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:00:29,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:00:29,834 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-03-16 12:00:29,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:00:29,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507118890] [2022-03-16 12:00:29,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:00:29,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:00:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:00:30,420 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 12:00:30,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:00:30,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507118890] [2022-03-16 12:00:30,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507118890] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:00:30,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529160173] [2022-03-16 12:00:30,421 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 12:00:30,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:00:30,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:00:30,424 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 12:00:30,461 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 12:00:30,475 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 12:00:30,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:00:30,477 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-16 12:00:30,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:00:31,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:00:31,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:00:31,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:31,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:00:31,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:31,379 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 12:00:31,442 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 12:00:31,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:00:32,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:32,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:32,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:32,582 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-03-16 12:00:32,583 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 12:00:50,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,232 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,240 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:00:50,285 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 12:00:50,286 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 12:00:50,793 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 12:00:50,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529160173] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:00:50,794 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:00:50,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-03-16 12:00:50,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126384066] [2022-03-16 12:00:50,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:00:50,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-16 12:00:50,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:00:50,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-16 12:00:50,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-03-16 12:00:50,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:00:50,798 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:00:50,798 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 12:00:50,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:00:50,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:00:50,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:00:50,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:01:00,445 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 300 states. [2022-03-16 12:01:00,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:01:00,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:01:00,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:01:00,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:01:00,462 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 12:01:00,646 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 12:01:00,646 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:01:00,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:01:00,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1662599294, now seen corresponding path program 5 times [2022-03-16 12:01:00,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:01:00,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053082013] [2022-03-16 12:01:00,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:01:00,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:01:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:01:01,260 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 12:01:01,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:01:01,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053082013] [2022-03-16 12:01:01,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053082013] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:01:01,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802142687] [2022-03-16 12:01:01,260 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 12:01:01,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:01:01,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:01:01,263 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 12:01:01,264 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 12:01:01,307 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-16 12:01:01,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:01:01,309 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 57 conjunts are in the unsatisfiable core [2022-03-16 12:01:01,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:01:02,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:01:02,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:01:02,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:01:02,695 INFO L353 Elim1Store]: treesize reduction 216, result has 3.1 percent of original size [2022-03-16 12:01:02,695 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 12:01:02,746 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 12:01:02,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:01:04,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:01:04,623 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 12:01:04,623 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 12:07:28,412 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 12:07:28,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802142687] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:07:28,413 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:07:28,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-03-16 12:07:28,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396068898] [2022-03-16 12:07:28,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:07:28,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-03-16 12:07:28,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:07:28,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-03-16 12:07:28,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-03-16 12:07:28,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:07:28,436 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:07:28,436 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 12:07:28,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:07:28,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:07:28,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:07:28,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:07:28,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:07:36,427 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 199 transitions and produced 183 states. [2022-03-16 12:07:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:07:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:07:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:07:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:07:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-16 12:07:36,455 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 12:07:36,643 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 12:07:36,643 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:07:36,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:07:36,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2079005886, now seen corresponding path program 6 times [2022-03-16 12:07:36,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:07:36,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63053704] [2022-03-16 12:07:36,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:07:36,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:07:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:07:36,819 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 12:07:36,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:07:36,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63053704] [2022-03-16 12:07:36,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63053704] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:07:36,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020504341] [2022-03-16 12:07:36,820 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 12:07:36,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:07:36,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:07:36,824 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 12:07:36,825 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 12:07:36,860 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-16 12:07:36,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:07:36,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-16 12:07:36,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:07:37,194 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 12:07:37,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:07:37,608 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 12:07:37,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020504341] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:07:37,608 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:07:37,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-03-16 12:07:37,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085398664] [2022-03-16 12:07:37,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:07:37,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-16 12:07:37,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:07:37,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-16 12:07:37,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-03-16 12:07:37,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:07:37,612 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:07:37,612 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 12:07:37,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:07:37,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:07:37,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:07:37,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:07:37,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-16 12:07:37,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:07:39,042 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 247 transitions and produced 232 states. [2022-03-16 12:07:39,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:07:39,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:07:39,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:07:39,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:07:39,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-16 12:07:39,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 12:07:39,065 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 12:07:39,255 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 12:07:39,256 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:07:39,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:07:39,256 INFO L85 PathProgramCache]: Analyzing trace with hash -713231340, now seen corresponding path program 7 times [2022-03-16 12:07:39,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:07:39,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326669069] [2022-03-16 12:07:39,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:07:39,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:07:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:07:39,465 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 12:07:39,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:07:39,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326669069] [2022-03-16 12:07:39,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326669069] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:07:39,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266048944] [2022-03-16 12:07:39,466 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 12:07:39,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:07:39,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:07:39,467 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 12:07:39,468 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 12:07:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:07:39,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-16 12:07:39,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:07:39,881 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 12:07:39,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:07:40,172 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 12:07:40,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266048944] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:07:40,173 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:07:40,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-03-16 12:07:40,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750927052] [2022-03-16 12:07:40,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:07:40,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-16 12:07:40,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:07:40,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-16 12:07:40,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-03-16 12:07:40,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:07:40,175 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:07:40,176 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 12:07:40,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:07:40,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:07:40,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:07:40,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:07:40,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-16 12:07:40,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 12:07:40,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:07:44,185 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 950 states. [2022-03-16 12:07:44,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:07:44,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:07:44,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:07:44,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:07:44,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 12:07:44,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-16 12:07:44,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-16 12:07:44,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-16 12:07:44,386 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 12:07:44,387 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:07:44,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:07:44,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1346980366, now seen corresponding path program 8 times [2022-03-16 12:07:44,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:07:44,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472536271] [2022-03-16 12:07:44,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:07:44,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:07:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:07:44,629 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 12:07:44,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:07:44,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472536271] [2022-03-16 12:07:44,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472536271] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:07:44,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845417681] [2022-03-16 12:07:44,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 12:07:44,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:07:44,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:07:44,632 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 12:07:44,633 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 12:07:44,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 12:07:44,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:07:44,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-16 12:07:44,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:07:45,092 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 12:07:45,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:07:45,406 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 12:07:45,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845417681] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:07:45,407 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:07:45,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-03-16 12:07:45,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190831572] [2022-03-16 12:07:45,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:07:45,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-03-16 12:07:45,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:07:45,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-03-16 12:07:45,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-03-16 12:07:45,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:07:45,410 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:07:45,410 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 12:07:45,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:07:45,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:07:45,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:07:45,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:07:45,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-16 12:07:45,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-16 12:07:45,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-16 12:07:45,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:07:46,338 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2344 transitions and produced 961 states. [2022-03-16 12:07:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:07:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:07:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:07:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:07:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 12:07:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-16 12:07:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-16 12:07:46,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-16 12:07:46,364 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 12:07:46,559 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 12:07:46,559 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:07:46,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:07:46,560 INFO L85 PathProgramCache]: Analyzing trace with hash -494438320, now seen corresponding path program 9 times [2022-03-16 12:07:46,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:07:46,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026349167] [2022-03-16 12:07:46,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:07:46,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:07:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:07:46,804 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 12:07:46,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:07:46,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026349167] [2022-03-16 12:07:46,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026349167] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:07:46,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575153685] [2022-03-16 12:07:46,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 12:07:46,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:07:46,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:07:46,806 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 12:07:46,806 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 12:07:46,843 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-16 12:07:46,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:07:46,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-16 12:07:46,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:07:47,331 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 12:07:47,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:07:47,928 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 12:07:47,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575153685] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 12:07:47,928 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 12:07:47,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-03-16 12:07:47,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325612465] [2022-03-16 12:07:47,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 12:07:47,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-03-16 12:07:47,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 12:07:47,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-03-16 12:07:47,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-03-16 12:07:47,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:07:47,930 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 12:07:47,931 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 12:07:47,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:07:47,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:07:47,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:07:47,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:07:47,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-16 12:07:47,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-16 12:07:47,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-16 12:07:47,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-16 12:07:47,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 12:07:48,631 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 452 transitions and produced 340 states. [2022-03-16 12:07:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 12:07:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 12:07:48,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 12:07:48,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 12:07:48,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 12:07:48,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-16 12:07:48,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-16 12:07:48,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-16 12:07:48,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-16 12:07:48,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-16 12:07:48,843 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 12:07:48,843 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 12:07:48,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 12:07:48,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1540285650, now seen corresponding path program 10 times [2022-03-16 12:07:48,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 12:07:48,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785344384] [2022-03-16 12:07:48,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 12:07:48,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 12:07:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 12:07:50,039 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 12:07:50,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 12:07:50,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785344384] [2022-03-16 12:07:50,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785344384] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 12:07:50,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179221448] [2022-03-16 12:07:50,040 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 12:07:50,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 12:07:50,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 12:07:50,047 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 12:07:50,047 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 12:07:50,094 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 12:07:50,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 12:07:50,096 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2022-03-16 12:07:50,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 12:07:52,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,278 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:52,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:52,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:52,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 12:07:52,305 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 12:07:52,364 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 12:07:52,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 12:07:54,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:54,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 12:07:59,291 INFO L353 Elim1Store]: treesize reduction 866, result has 61.2 percent of original size [2022-03-16 12:07:59,291 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 12:14:04,743 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-16 12:14:04,767 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 12:14:04,777 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 12:14:04,778 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 12:14:04,778 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 12:14:04,963 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 12:14:04,964 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-133-17-11-12-10-13-9-12-8-10-7-10-6-9-5-9-4-8-3-8-3-7-2-7-2-7-2-7-3-6-3-5-2-4-1 context. [2022-03-16 12:14:04,966 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-16 12:14:04,966 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-16 12:14:04,966 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-16 12:14:04,970 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-16 12:14:04,972 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 12:14:04,973 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 12:14:04,975 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 12:14:04 BasicIcfg [2022-03-16 12:14:04,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 12:14:04,976 INFO L158 Benchmark]: Toolchain (without parser) took 831099.78ms. Allocated memory was 190.8MB in the beginning and 714.1MB in the end (delta: 523.2MB). Free memory was 155.6MB in the beginning and 384.9MB in the end (delta: -229.3MB). Peak memory consumption was 472.7MB. Max. memory is 8.0GB. [2022-03-16 12:14:04,977 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 190.8MB. Free memory is still 156.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 12:14:04,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.01ms. Allocated memory is still 190.8MB. Free memory was 155.4MB in the beginning and 153.9MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-16 12:14:04,977 INFO L158 Benchmark]: Boogie Preprocessor took 17.06ms. Allocated memory is still 190.8MB. Free memory was 153.9MB in the beginning and 153.0MB in the end (delta: 854.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 12:14:04,977 INFO L158 Benchmark]: RCFGBuilder took 308.66ms. Allocated memory is still 190.8MB. Free memory was 152.8MB in the beginning and 143.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 12:14:04,978 INFO L158 Benchmark]: TraceAbstraction took 830735.29ms. Allocated memory was 190.8MB in the beginning and 714.1MB in the end (delta: 523.2MB). Free memory was 142.9MB in the beginning and 384.9MB in the end (delta: -242.0MB). Peak memory consumption was 459.1MB. Max. memory is 8.0GB. [2022-03-16 12:14:04,979 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 190.8MB. Free memory is still 156.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.01ms. Allocated memory is still 190.8MB. Free memory was 155.4MB in the beginning and 153.9MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.06ms. Allocated memory is still 190.8MB. Free memory was 153.9MB in the beginning and 153.0MB in the end (delta: 854.8kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 308.66ms. Allocated memory is still 190.8MB. Free memory was 152.8MB in the beginning and 143.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 830735.29ms. Allocated memory was 190.8MB in the beginning and 714.1MB in the end (delta: 523.2MB). Free memory was 142.9MB in the beginning and 384.9MB in the end (delta: -242.0MB). Peak memory consumption was 459.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-133-17-11-12-10-13-9-12-8-10-7-10-6-9-5-9-4-8-3-8-3-7-2-7-2-7-2-7-3-6-3-5-2-4-1 context. - 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 PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-133-17-11-12-10-13-9-12-8-10-7-10-6-9-5-9-4-8-3-8-3-7-2-7-2-7-2-7-3-6-3-5-2-4-1 context. - 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 PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-133-17-11-12-10-13-9-12-8-10-7-10-6-9-5-9-4-8-3-8-3-7-2-7-2-7-2-7-3-6-3-5-2-4-1 context. - 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 PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-133-17-11-12-10-13-9-12-8-10-7-10-6-9-5-9-4-8-3-8-3-7-2-7-2-7-2-7-3-6-3-5-2-4-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 830.6s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 35.0s, 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, 0.3s SatisfiabilityAnalysisTime, 416.8s 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