/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/chl/name-comparator-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 05:26:21,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 05:26:21,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 05:26:21,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 05:26:21,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 05:26:21,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 05:26:21,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 05:26:21,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 05:26:21,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 05:26:21,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 05:26:21,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 05:26:21,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 05:26:21,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 05:26:21,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 05:26:21,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 05:26:21,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 05:26:21,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 05:26:21,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 05:26:21,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 05:26:21,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 05:26:21,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 05:26:21,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 05:26:21,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 05:26:21,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 05:26:21,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 05:26:21,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 05:26:21,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 05:26:21,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 05:26:21,490 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 [2022-03-04 05:26:21,522 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 05:26:21,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 05:26:21,522 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 05:26:21,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 05:26:21,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 05:26:21,525 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 05:26:21,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 05:26:21,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 05:26:21,526 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 05:26:21,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 05:26:21,526 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 05:26:21,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 05:26:21,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 05:26:21,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 05:26:21,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 05:26:21,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 05:26:21,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 05:26:21,527 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 05:26:21,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 05:26:21,527 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 05:26:21,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 05:26:21,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 05:26:21,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 05:26:21,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 05:26:21,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 05:26:21,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 05:26:21,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 05:26:21,530 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 05:26:21,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 05:26:21,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 05:26:21,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 05:26:21,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 05:26:21,530 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 05:26:21,530 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 05:26:21,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 05:26:21,531 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 05:26:21,531 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 05:26:21,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 05:26:21,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 05:26:21,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 05:26:21,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 05:26:21,742 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 05:26:21,743 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 05:26:21,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/name-comparator-subst.wvr.bpl [2022-03-04 05:26:21,744 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/name-comparator-subst.wvr.bpl' [2022-03-04 05:26:21,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 05:26:21,770 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 05:26:21,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 05:26:21,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 05:26:21,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 05:26:21,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:26:21" (1/1) ... [2022-03-04 05:26:21,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:26:21" (1/1) ... [2022-03-04 05:26:21,794 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 05:26:21,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 05:26:21,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 05:26:21,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 05:26:21,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 05:26:21,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:26:21" (1/1) ... [2022-03-04 05:26:21,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:26:21" (1/1) ... [2022-03-04 05:26:21,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:26:21" (1/1) ... [2022-03-04 05:26:21,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:26:21" (1/1) ... [2022-03-04 05:26:21,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:26:21" (1/1) ... [2022-03-04 05:26:21,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:26:21" (1/1) ... [2022-03-04 05:26:21,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:26:21" (1/1) ... [2022-03-04 05:26:21,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 05:26:21,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 05:26:21,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 05:26:21,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 05:26:21,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:26:21" (1/1) ... [2022-03-04 05:26:21,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 05:26:21,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:26:21,861 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) [2022-03-04 05:26:21,886 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 [2022-03-04 05:26:21,901 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 05:26:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 05:26:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 05:26:21,902 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 05:26:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 05:26:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 05:26:21,903 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 05:26:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 05:26:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 05:26:21,904 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 05:26:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 05:26:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 05:26:21,905 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 05:26:21,955 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 05:26:21,958 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 05:26:22,130 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 05:26:22,250 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 05:26:22,251 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-04 05:26:22,253 INFO L202 PluginConnector]: Adding new model name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 05:26:22 BoogieIcfgContainer [2022-03-04 05:26:22,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 05:26:22,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 05:26:22,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 05:26:22,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 05:26:22,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:26:21" (1/2) ... [2022-03-04 05:26:22,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cf23e7 and model type name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 05:26:22, skipping insertion in model container [2022-03-04 05:26:22,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 05:26:22" (2/2) ... [2022-03-04 05:26:22,267 INFO L111 eAbstractionObserver]: Analyzing ICFG name-comparator-subst.wvr.bpl [2022-03-04 05:26:22,272 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 05:26:22,272 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 05:26:22,272 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 05:26:22,272 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 05:26:22,355 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 05:26:22,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 05:26:22,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:26:22,404 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) [2022-03-04 05:26:22,406 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 [2022-03-04 05:26:22,430 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 05:26:22,436 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 [2022-03-04 05:26:22,437 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 05:26:22,474 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 45 transitions and produced 44 states. [2022-03-04 05:26:22,476 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:22,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:22,480 INFO L85 PathProgramCache]: Analyzing trace with hash -2025407664, now seen corresponding path program 1 times [2022-03-04 05:26:22,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:22,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72322334] [2022-03-04 05:26:22,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:22,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:23,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:23,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72322334] [2022-03-04 05:26:23,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72322334] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:26:23,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102804226] [2022-03-04 05:26:23,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:23,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:26:23,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:26:23,051 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) [2022-03-04 05:26:23,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 05:26:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:23,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-04 05:26:23,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:26:23,733 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 124 [2022-03-04 05:26:23,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:23,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:26:24,931 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 05:26:24,931 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 168 [2022-03-04 05:26:25,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:25,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102804226] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:26:25,297 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:26:25,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2022-03-04 05:26:25,300 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518198430] [2022-03-04 05:26:25,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:26:25,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-04 05:26:25,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:25,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-04 05:26:25,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2022-03-04 05:26:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:25,332 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:25,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 22 states have internal predecessors, (41), 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) [2022-03-04 05:26:25,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:26,220 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 53 transitions and produced 52 states. [2022-03-04 05:26:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:26,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-04 05:26:26,421 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 [2022-03-04 05:26:26,421 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:26,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:26,422 INFO L85 PathProgramCache]: Analyzing trace with hash 320135536, now seen corresponding path program 2 times [2022-03-04 05:26:26,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:26,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770925742] [2022-03-04 05:26:26,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:26,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:26,554 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-04 05:26:26,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:26,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770925742] [2022-03-04 05:26:26,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770925742] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:26:26,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350861294] [2022-03-04 05:26:26,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 05:26:26,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:26:26,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:26:26,556 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) [2022-03-04 05:26:26,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 05:26:26,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 05:26:26,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:26:26,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-04 05:26:26,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:26:26,748 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-04 05:26:26,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:26:26,886 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 05:26:26,886 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2022-03-04 05:26:26,928 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-04 05:26:26,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350861294] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:26:26,928 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:26:26,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2022-03-04 05:26:26,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129168264] [2022-03-04 05:26:26,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:26:26,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-04 05:26:26,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:26,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-04 05:26:26,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-03-04 05:26:26,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:26,930 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:26,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 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) [2022-03-04 05:26:26,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:26,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:27,232 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 56 transitions and produced 55 states. [2022-03-04 05:26:27,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:27,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:27,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 05:26:27,434 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 [2022-03-04 05:26:27,434 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:27,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:27,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1497365855, now seen corresponding path program 3 times [2022-03-04 05:26:27,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:27,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656020637] [2022-03-04 05:26:27,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:27,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:27,601 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:27,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:27,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656020637] [2022-03-04 05:26:27,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656020637] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:26:27,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986618576] [2022-03-04 05:26:27,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 05:26:27,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:26:27,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:26:27,604 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) [2022-03-04 05:26:27,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 05:26:27,669 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-04 05:26:27,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:26:27,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-04 05:26:27,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:26:27,819 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:27,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:26:27,961 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 05:26:27,962 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2022-03-04 05:26:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:28,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986618576] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:26:28,014 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:26:28,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2022-03-04 05:26:28,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140459724] [2022-03-04 05:26:28,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:26:28,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-04 05:26:28,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:28,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-04 05:26:28,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-03-04 05:26:28,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:28,016 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:28,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 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) [2022-03-04 05:26:28,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:28,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:28,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:28,427 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 59 transitions and produced 58 states. [2022-03-04 05:26:28,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:28,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:28,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:28,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 05:26:28,628 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 [2022-03-04 05:26:28,629 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:28,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:28,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2005334128, now seen corresponding path program 4 times [2022-03-04 05:26:28,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:28,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068255370] [2022-03-04 05:26:28,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:28,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:29,208 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:29,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:29,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068255370] [2022-03-04 05:26:29,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068255370] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:26:29,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576541613] [2022-03-04 05:26:29,209 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 05:26:29,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:26:29,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:26:29,212 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) [2022-03-04 05:26:29,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 05:26:29,262 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 05:26:29,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:26:29,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-04 05:26:29,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:26:29,849 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 114 [2022-03-04 05:26:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:30,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:26:31,214 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 05:26:31,215 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 243 treesize of output 207 [2022-03-04 05:26:31,556 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:31,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576541613] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:26:31,556 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:26:31,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 33 [2022-03-04 05:26:31,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565357389] [2022-03-04 05:26:31,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:26:31,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-03-04 05:26:31,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:31,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-03-04 05:26:31,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=938, Unknown=0, NotChecked=0, Total=1056 [2022-03-04 05:26:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:31,558 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:31,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1.696969696969697) internal successors, (56), 33 states have internal predecessors, (56), 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) [2022-03-04 05:26:31,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:31,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:31,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:31,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:32,197 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 63 transitions and produced 62 states. [2022-03-04 05:26:32,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:32,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:32,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:32,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:32,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 05:26:32,398 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 [2022-03-04 05:26:32,398 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:32,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:32,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1894348865, now seen corresponding path program 5 times [2022-03-04 05:26:32,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:32,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488377778] [2022-03-04 05:26:32,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:32,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:32,441 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 05:26:32,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:32,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488377778] [2022-03-04 05:26:32,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488377778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 05:26:32,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 05:26:32,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-04 05:26:32,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073649347] [2022-03-04 05:26:32,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 05:26:32,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-04 05:26:32,443 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:32,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-04 05:26:32,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-04 05:26:32,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:32,444 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:32,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2022-03-04 05:26:32,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:32,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:32,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:32,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:32,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:33,441 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 62 transitions and produced 62 states. [2022-03-04 05:26:33,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:33,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:33,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:33,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:33,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:33,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-04 05:26:33,442 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:33,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:33,442 INFO L85 PathProgramCache]: Analyzing trace with hash -572481407, now seen corresponding path program 6 times [2022-03-04 05:26:33,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:33,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535239495] [2022-03-04 05:26:33,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:33,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:33,491 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 05:26:33,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:33,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535239495] [2022-03-04 05:26:33,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535239495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 05:26:33,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 05:26:33,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-04 05:26:33,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510633893] [2022-03-04 05:26:33,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 05:26:33,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-04 05:26:33,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:33,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-04 05:26:33,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-04 05:26:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:33,493 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:33,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2022-03-04 05:26:33,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:33,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:33,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:33,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:33,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:33,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:33,624 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 83 transitions and produced 70 states. [2022-03-04 05:26:33,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:33,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:33,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:33,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:33,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:33,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:33,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-04 05:26:33,626 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:33,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:33,626 INFO L85 PathProgramCache]: Analyzing trace with hash 240217281, now seen corresponding path program 1 times [2022-03-04 05:26:33,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:33,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247724716] [2022-03-04 05:26:33,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:33,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 05:26:33,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:33,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247724716] [2022-03-04 05:26:33,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247724716] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 05:26:33,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 05:26:33,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-04 05:26:33,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375276960] [2022-03-04 05:26:33,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 05:26:33,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-04 05:26:33,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:33,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-04 05:26:33,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-04 05:26:33,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:33,739 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:33,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-03-04 05:26:33,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:33,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:33,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:33,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:33,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:33,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:33,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:34,321 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 197 transitions and produced 119 states. [2022-03-04 05:26:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-04 05:26:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:34,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-04 05:26:34,323 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:34,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:34,323 INFO L85 PathProgramCache]: Analyzing trace with hash 639816289, now seen corresponding path program 7 times [2022-03-04 05:26:34,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:34,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175905320] [2022-03-04 05:26:34,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:34,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:34,456 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:34,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:34,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175905320] [2022-03-04 05:26:34,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175905320] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:26:34,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597990490] [2022-03-04 05:26:34,457 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 05:26:34,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:26:34,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:26:34,460 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) [2022-03-04 05:26:34,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 05:26:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:34,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-04 05:26:34,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:26:34,675 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2022-03-04 05:26:34,697 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:34,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:26:34,781 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 05:26:34,781 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 45 [2022-03-04 05:26:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:34,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597990490] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:26:34,890 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:26:34,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 16 [2022-03-04 05:26:34,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564619463] [2022-03-04 05:26:34,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:26:34,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-04 05:26:34,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:34,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-04 05:26:34,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-04 05:26:34,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:34,892 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:34,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 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) [2022-03-04 05:26:34,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-04 05:26:34,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:34,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:34,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:34,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:34,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:34,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:34,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:35,369 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 194 transitions and produced 116 states. [2022-03-04 05:26:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-04 05:26:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:35,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:35,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 05:26:35,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:26:35,575 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:35,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:35,576 INFO L85 PathProgramCache]: Analyzing trace with hash 943266224, now seen corresponding path program 8 times [2022-03-04 05:26:35,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:35,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215049591] [2022-03-04 05:26:35,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:35,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:35,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:35,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215049591] [2022-03-04 05:26:35,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215049591] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:26:35,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669143066] [2022-03-04 05:26:35,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 05:26:35,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:26:35,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:26:35,804 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) [2022-03-04 05:26:35,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 05:26:35,843 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 05:26:35,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:26:35,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 36 conjunts are in the unsatisfiable core [2022-03-04 05:26:35,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:26:36,191 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 115 [2022-03-04 05:26:36,387 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:36,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:26:37,225 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 05:26:37,225 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 149 [2022-03-04 05:26:37,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:37,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669143066] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:26:37,396 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:26:37,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2022-03-04 05:26:37,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591964195] [2022-03-04 05:26:37,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:26:37,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-04 05:26:37,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:37,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-04 05:26:37,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2022-03-04 05:26:37,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:37,397 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:37,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 26 states have internal predecessors, (46), 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) [2022-03-04 05:26:37,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-04 05:26:37,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:37,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:37,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:37,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:37,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:37,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:37,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:37,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:41,012 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 464 transitions and produced 225 states. [2022-03-04 05:26:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:41,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:41,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 05:26:41,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:26:41,214 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:41,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:41,214 INFO L85 PathProgramCache]: Analyzing trace with hash 942421121, now seen corresponding path program 1 times [2022-03-04 05:26:41,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:41,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442323772] [2022-03-04 05:26:41,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:41,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:41,304 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 05:26:41,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:41,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442323772] [2022-03-04 05:26:41,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442323772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 05:26:41,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 05:26:41,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-04 05:26:41,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093474329] [2022-03-04 05:26:41,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 05:26:41,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-04 05:26:41,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:41,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-04 05:26:41,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-04 05:26:41,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:41,309 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:41,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-03-04 05:26:41,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:41,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:41,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:41,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:41,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:41,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:41,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:41,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:41,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:41,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:41,438 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 455 transitions and produced 216 states. [2022-03-04 05:26:41,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:41,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:41,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:41,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:41,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:41,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:41,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:41,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:41,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:41,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:41,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-04 05:26:41,439 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:41,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:41,439 INFO L85 PathProgramCache]: Analyzing trace with hash 579980656, now seen corresponding path program 1 times [2022-03-04 05:26:41,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:41,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035821602] [2022-03-04 05:26:41,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:41,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:41,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:41,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:41,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035821602] [2022-03-04 05:26:41,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035821602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 05:26:41,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 05:26:41,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-04 05:26:41,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381365567] [2022-03-04 05:26:41,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 05:26:41,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-04 05:26:41,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:41,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-04 05:26:41,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-04 05:26:41,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:41,523 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:41,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) [2022-03-04 05:26:41,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:41,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:41,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:41,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:41,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:41,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-04 05:26:41,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:41,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:41,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:41,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:41,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:41,881 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1005 transitions and produced 447 states. [2022-03-04 05:26:41,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:41,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-04 05:26:41,882 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:41,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:41,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1476736258, now seen corresponding path program 1 times [2022-03-04 05:26:41,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:41,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107488000] [2022-03-04 05:26:41,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:41,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:41,958 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-04 05:26:41,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:41,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107488000] [2022-03-04 05:26:41,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107488000] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:26:41,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597039629] [2022-03-04 05:26:41,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:41,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:26:41,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:26:41,960 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) [2022-03-04 05:26:41,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 05:26:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:42,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-04 05:26:42,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:26:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-04 05:26:42,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:26:42,350 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-03-04 05:26:42,350 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 40 [2022-03-04 05:26:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-04 05:26:42,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597039629] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:26:42,385 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:26:42,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2022-03-04 05:26:42,385 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125026281] [2022-03-04 05:26:42,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:26:42,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-04 05:26:42,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:42,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-04 05:26:42,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2022-03-04 05:26:42,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:42,386 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:42,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 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) [2022-03-04 05:26:42,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:42,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:42,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:42,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:42,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:42,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:42,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:42,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:42,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:42,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:42,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:42,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:42,739 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 999 transitions and produced 442 states. [2022-03-04 05:26:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:42,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-04 05:26:42,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-04 05:26:42,941 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,SelfDestructingSolverStorable11 [2022-03-04 05:26:42,942 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:42,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:42,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1768728670, now seen corresponding path program 2 times [2022-03-04 05:26:42,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:42,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070560921] [2022-03-04 05:26:42,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:42,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:43,015 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-04 05:26:43,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:43,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070560921] [2022-03-04 05:26:43,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070560921] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:26:43,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613635637] [2022-03-04 05:26:43,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 05:26:43,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:26:43,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:26:43,017 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) [2022-03-04 05:26:43,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-04 05:26:43,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 05:26:43,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:26:43,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-04 05:26:43,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:26:43,273 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 48 [2022-03-04 05:26:43,367 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-04 05:26:43,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:26:43,543 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-03-04 05:26:43,544 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 114 treesize of output 95 [2022-03-04 05:26:43,621 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-04 05:26:43,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613635637] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:26:43,621 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:26:43,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-03-04 05:26:43,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348461394] [2022-03-04 05:26:43,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:26:43,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-04 05:26:43,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:43,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-04 05:26:43,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2022-03-04 05:26:43,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:43,622 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:43,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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) [2022-03-04 05:26:43,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:43,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:43,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:43,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:43,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:43,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:43,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:43,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:43,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:43,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:43,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:43,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-04 05:26:43,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:44,018 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1243 transitions and produced 552 states. [2022-03-04 05:26:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-04 05:26:44,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:44,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-04 05:26:44,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-04 05:26:44,224 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:44,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash 234074206, now seen corresponding path program 3 times [2022-03-04 05:26:44,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:44,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046044296] [2022-03-04 05:26:44,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:44,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:44,303 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-04 05:26:44,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:44,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046044296] [2022-03-04 05:26:44,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046044296] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:26:44,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131714540] [2022-03-04 05:26:44,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 05:26:44,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:26:44,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:26:44,308 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) [2022-03-04 05:26:44,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-04 05:26:44,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-04 05:26:44,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:26:44,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 28 conjunts are in the unsatisfiable core [2022-03-04 05:26:44,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:26:44,827 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 05:26:44,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:26:45,157 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-03-04 05:26:45,158 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 159 treesize of output 130 [2022-03-04 05:26:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 05:26:45,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131714540] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:26:45,271 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:26:45,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 23 [2022-03-04 05:26:45,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446985854] [2022-03-04 05:26:45,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:26:45,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-04 05:26:45,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:45,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-04 05:26:45,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-03-04 05:26:45,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:45,276 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:45,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 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) [2022-03-04 05:26:45,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:45,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:45,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:45,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:45,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:45,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:45,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:45,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:45,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:45,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:45,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:45,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-04 05:26:45,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:45,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:46,169 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1285 transitions and produced 576 states. [2022-03-04 05:26:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-04 05:26:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:46,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-04 05:26:46,370 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,SelfDestructingSolverStorable13 [2022-03-04 05:26:46,371 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:46,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:46,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1579276621, now seen corresponding path program 1 times [2022-03-04 05:26:46,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:46,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538885500] [2022-03-04 05:26:46,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:46,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:46,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:26:46,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:46,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538885500] [2022-03-04 05:26:46,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538885500] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:26:46,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615678235] [2022-03-04 05:26:46,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:46,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:26:46,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:26:46,493 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) [2022-03-04 05:26:46,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-04 05:26:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:46,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-04 05:26:46,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:26:46,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-04 05:26:46,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:26:46,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-04 05:26:46,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615678235] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:26:46,850 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:26:46,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2022-03-04 05:26:46,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039776267] [2022-03-04 05:26:46,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:26:46,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-04 05:26:46,851 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:46,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-04 05:26:46,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-03-04 05:26:46,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:46,851 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:46,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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) [2022-03-04 05:26:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-04 05:26:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:46,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:46,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:47,901 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3669 transitions and produced 1544 states. [2022-03-04 05:26:47,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:47,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:47,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:47,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:47,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-04 05:26:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-04 05:26:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:47,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-04 05:26:48,125 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,SelfDestructingSolverStorable14 [2022-03-04 05:26:48,126 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 05:26:48,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:26:48,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1093659330, now seen corresponding path program 4 times [2022-03-04 05:26:48,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:26:48,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649330627] [2022-03-04 05:26:48,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:26:48,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:26:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:26:48,201 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-04 05:26:48,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:26:48,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649330627] [2022-03-04 05:26:48,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649330627] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:26:48,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209142349] [2022-03-04 05:26:48,202 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 05:26:48,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:26:48,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:26:48,204 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 05:26:48,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-04 05:26:48,269 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 05:26:48,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:26:48,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-04 05:26:48,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:26:48,430 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-04 05:26:48,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-04 05:26:48,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209142349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 05:26:48,431 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-04 05:26:48,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-03-04 05:26:48,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494541749] [2022-03-04 05:26:48,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 05:26:48,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-04 05:26:48,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:26:48,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-04 05:26:48,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-03-04 05:26:48,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:48,432 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:26:48,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) [2022-03-04 05:26:48,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:48,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:48,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:48,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:48,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:48,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:48,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:48,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:48,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:48,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:48,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:48,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-04 05:26:48,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:48,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-04 05:26:48,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:48,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:26:49,203 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8831 transitions and produced 3145 states. [2022-03-04 05:26:49,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 05:26:49,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-04 05:26:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-04 05:26:49,206 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-04 05:26:49,206 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-04 05:26:49,206 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-04 05:26:49,207 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-04 05:26:49,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-04 05:26:49,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-03-04 05:26:49,412 INFO L732 BasicCegarLoop]: Path program histogram: [8, 4, 1, 1, 1, 1] [2022-03-04 05:26:49,413 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 05:26:49,413 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 05:26:49,417 INFO L202 PluginConnector]: Adding new model name-comparator-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 05:26:49 BasicIcfg [2022-03-04 05:26:49,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 05:26:49,417 INFO L158 Benchmark]: Toolchain (without parser) took 27647.10ms. Allocated memory was 182.5MB in the beginning and 294.6MB in the end (delta: 112.2MB). Free memory was 139.1MB in the beginning and 113.0MB in the end (delta: 26.1MB). Peak memory consumption was 139.0MB. Max. memory is 8.0GB. [2022-03-04 05:26:49,417 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 182.5MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 05:26:49,418 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.60ms. Allocated memory is still 182.5MB. Free memory was 139.1MB in the beginning and 137.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-04 05:26:49,419 INFO L158 Benchmark]: Boogie Preprocessor took 25.03ms. Allocated memory is still 182.5MB. Free memory was 137.5MB in the beginning and 136.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 05:26:49,419 INFO L158 Benchmark]: RCFGBuilder took 430.44ms. Allocated memory is still 182.5MB. Free memory was 136.3MB in the beginning and 121.9MB in the end (delta: 14.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-04 05:26:49,420 INFO L158 Benchmark]: TraceAbstraction took 27162.62ms. Allocated memory was 182.5MB in the beginning and 294.6MB in the end (delta: 112.2MB). Free memory was 121.4MB in the beginning and 113.0MB in the end (delta: 8.4MB). Peak memory consumption was 121.1MB. Max. memory is 8.0GB. [2022-03-04 05:26:49,420 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 0.12ms. Allocated memory is still 182.5MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.60ms. Allocated memory is still 182.5MB. Free memory was 139.1MB in the beginning and 137.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.03ms. Allocated memory is still 182.5MB. Free memory was 137.5MB in the beginning and 136.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 430.44ms. Allocated memory is still 182.5MB. Free memory was 136.3MB in the beginning and 121.9MB in the end (delta: 14.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 27162.62ms. Allocated memory was 182.5MB in the beginning and 294.6MB in the end (delta: 112.2MB). Free memory was 121.4MB in the beginning and 113.0MB in the end (delta: 8.4MB). Peak memory consumption was 121.1MB. 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 - PositiveResult [Line: 114]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 38 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 27.0s, OverallIterations: 16, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 12.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 205, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 587 NumberOfCodeBlocks, 586 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 765 ConstructedInterpolants, 0 QuantifiedInterpolants, 7760 SizeOfPredicates, 155 NumberOfNonLiveVariables, 1190 ConjunctsInSsa, 266 ConjunctsInUnsatCore, 37 InterpolantComputations, 6 PerfectInterpolantSequences, 155/308 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-04 05:26:49,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-03-04 05:26:49,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...