/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-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 23:00:16,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 23:00:16,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 23:00:16,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-18 23:00:16,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-18 23:00:16,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-18 23:00:16,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-18 23:00:16,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-18 23:00:16,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-18 23:00:16,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-18 23:00:16,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-18 23:00:16,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-18 23:00:16,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-18 23:00:16,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-18 23:00:16,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-18 23:00:16,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-18 23:00:16,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-18 23:00:16,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 23:00:16,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 23:00:16,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 23:00:16,316 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-POR-NewStatesSleep-NoLbe.epf [2022-02-18 23:00:16,342 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 23:00:16,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 23:00:16,342 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 23:00:16,342 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 23:00:16,343 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 23:00:16,343 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 23:00:16,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 23:00:16,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 23:00:16,344 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 23:00:16,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 23:00:16,344 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 23:00:16,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 23:00:16,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 23:00:16,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 23:00:16,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 23:00:16,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 23:00:16,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 23:00:16,345 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 23:00:16,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 23:00:16,345 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 23:00:16,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 23:00:16,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 23:00:16,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 23:00:16,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 23:00:16,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 23:00:16,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 23:00:16,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 23:00:16,347 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-18 23:00:16,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 23:00:16,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 23:00:16,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 23:00:16,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 23:00:16,347 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 23:00:16,347 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-18 23:00:16,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 23:00:16,348 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-02-18 23:00:16,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 23:00:16,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 23:00:16,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 23:00:16,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 23:00:16,570 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-18 23:00:16,571 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-18 23:00:16,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl [2022-02-18 23:00:16,572 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl' [2022-02-18 23:00:16,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 23:00:16,590 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-18 23:00:16,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 23:00:16,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 23:00:16,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 23:00:16,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:00:16" (1/1) ... [2022-02-18 23:00:16,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:00:16" (1/1) ... [2022-02-18 23:00:16,615 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-18 23:00:16,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 23:00:16,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 23:00:16,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 23:00:16,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 23:00:16,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:00:16" (1/1) ... [2022-02-18 23:00:16,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:00:16" (1/1) ... [2022-02-18 23:00:16,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:00:16" (1/1) ... [2022-02-18 23:00:16,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:00:16" (1/1) ... [2022-02-18 23:00:16,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:00:16" (1/1) ... [2022-02-18 23:00:16,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:00:16" (1/1) ... [2022-02-18 23:00:16,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:00:16" (1/1) ... [2022-02-18 23:00:16,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 23:00:16,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 23:00:16,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 23:00:16,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 23:00:16,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:00:16" (1/1) ... [2022-02-18 23:00:16,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 23:00:16,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:00:16,649 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) [2022-02-18 23:00:16,654 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 [2022-02-18 23:00:16,679 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-18 23:00:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-18 23:00:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-18 23:00:16,679 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-18 23:00:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-18 23:00:16,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-18 23:00:16,680 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-18 23:00:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 23:00:16,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 23:00:16,680 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-18 23:00:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-18 23:00:16,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-18 23:00:16,680 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-18 23:00:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-18 23:00:16,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-18 23:00:16,682 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 23:00:16,717 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 23:00:16,718 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 23:00:16,861 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 23:00:16,875 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 23:00:16,875 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-18 23:00:16,877 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:00:16 BoogieIcfgContainer [2022-02-18 23:00:16,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 23:00:16,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 23:00:16,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 23:00:16,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 23:00:16,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:00:16" (1/2) ... [2022-02-18 23:00:16,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778430d1 and model type buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:00:16, skipping insertion in model container [2022-02-18 23:00:16,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:00:16" (2/2) ... [2022-02-18 23:00:16,882 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-mult-alt.wvr.bpl [2022-02-18 23:00:16,886 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 23:00:16,886 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 23:00:16,886 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 23:00:16,886 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 23:00:16,918 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-18 23:00:16,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-18 23:00:16,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:00:16,961 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) [2022-02-18 23:00:16,980 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 [2022-02-18 23:00:17,005 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 23:00:17,012 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 23:00:17,012 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-18 23:00:17,141 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:00:17,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:00:17,145 INFO L85 PathProgramCache]: Analyzing trace with hash 852012866, now seen corresponding path program 1 times [2022-02-18 23:00:17,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:00:17,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578325542] [2022-02-18 23:00:17,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:00:17,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:00:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:00:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 23:00:17,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:00:17,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578325542] [2022-02-18 23:00:17,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578325542] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 23:00:17,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 23:00:17,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 23:00:17,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351113700] [2022-02-18 23:00:17,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 23:00:17,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 23:00:17,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:00:17,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 23:00:17,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 23:00:17,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:17,288 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:00:17,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 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) [2022-02-18 23:00:17,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:17,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:17,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 23:00:17,409 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:00:17,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:00:17,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1885647555, now seen corresponding path program 1 times [2022-02-18 23:00:17,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:00:17,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606924133] [2022-02-18 23:00:17,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:00:17,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:00:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:00:17,457 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 23:00:17,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:00:17,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606924133] [2022-02-18 23:00:17,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606924133] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 23:00:17,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 23:00:17,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 23:00:17,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812884025] [2022-02-18 23:00:17,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 23:00:17,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 23:00:17,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:00:17,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 23:00:17,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 23:00:17,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:17,460 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:00:17,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-02-18 23:00:17,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:17,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:17,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:17,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:17,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 23:00:17,496 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:00:17,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:00:17,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1920021074, now seen corresponding path program 2 times [2022-02-18 23:00:17,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:00:17,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052030302] [2022-02-18 23:00:17,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:00:17,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:00:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:00:17,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 23:00:17,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:00:17,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052030302] [2022-02-18 23:00:17,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052030302] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:00:17,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668956888] [2022-02-18 23:00:17,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 23:00:17,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:17,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:00:17,596 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) [2022-02-18 23:00:17,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-18 23:00:17,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 23:00:17,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:00:17,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-18 23:00:17,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:00:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 23:00:17,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:00:17,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 23:00:17,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668956888] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:00:17,945 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:00:17,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-02-18 23:00:17,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712841123] [2022-02-18 23:00:17,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:00:17,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-18 23:00:17,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:00:17,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-18 23:00:17,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-02-18 23:00:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:17,947 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:00:17,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 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) [2022-02-18 23:00:17,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:17,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:17,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:18,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:18,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:18,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:18,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-18 23:00:18,415 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,SelfDestructingSolverStorable2 [2022-02-18 23:00:18,415 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:00:18,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:00:18,416 INFO L85 PathProgramCache]: Analyzing trace with hash -2093364542, now seen corresponding path program 2 times [2022-02-18 23:00:18,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:00:18,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510585239] [2022-02-18 23:00:18,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:00:18,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:00:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:00:18,468 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-18 23:00:18,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:00:18,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510585239] [2022-02-18 23:00:18,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510585239] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:00:18,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678685208] [2022-02-18 23:00:18,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 23:00:18,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:18,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:00:18,483 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) [2022-02-18 23:00:18,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-18 23:00:18,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 23:00:18,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:00:18,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-18 23:00:18,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:00:18,614 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-18 23:00:18,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 23:00:18,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678685208] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 23:00:18,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 23:00:18,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-02-18 23:00:18,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444399195] [2022-02-18 23:00:18,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 23:00:18,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-18 23:00:18,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:00:18,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-18 23:00:18,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-18 23:00:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:18,618 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:00:18,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 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) [2022-02-18 23:00:18,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:18,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:18,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:18,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:18,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:18,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:18,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:18,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:00:18,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-18 23:00:18,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:18,908 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:00:18,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:00:18,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2008497660, now seen corresponding path program 3 times [2022-02-18 23:00:18,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:00:18,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340624605] [2022-02-18 23:00:18,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:00:18,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:00:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:00:18,997 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 23:00:18,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:00:18,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340624605] [2022-02-18 23:00:18,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340624605] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:00:18,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140832007] [2022-02-18 23:00:18,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 23:00:18,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:18,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:00:19,012 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) [2022-02-18 23:00:19,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-18 23:00:19,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-02-18 23:00:19,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:00:19,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-18 23:00:19,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:00:19,124 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 23:00:19,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 23:00:19,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140832007] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 23:00:19,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 23:00:19,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2022-02-18 23:00:19,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229998331] [2022-02-18 23:00:19,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 23:00:19,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 23:00:19,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:00:19,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 23:00:19,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-02-18 23:00:19,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:19,128 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:00:19,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 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) [2022-02-18 23:00:19,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:19,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:19,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:19,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:00:19,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:00:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:00:19,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-18 23:00:19,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:19,479 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:00:19,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:00:19,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1907083638, now seen corresponding path program 4 times [2022-02-18 23:00:19,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:00:19,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873042659] [2022-02-18 23:00:19,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:00:19,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:00:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:00:19,713 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:00:19,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:00:19,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873042659] [2022-02-18 23:00:19,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873042659] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:00:19,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876007611] [2022-02-18 23:00:19,725 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 23:00:19,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:19,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:00:19,727 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) [2022-02-18 23:00:19,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-18 23:00:19,792 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 23:00:19,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:00:19,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 33 conjunts are in the unsatisfiable core [2022-02-18 23:00:19,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:00:20,569 INFO L353 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-02-18 23:00:20,570 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 48 [2022-02-18 23:00:20,612 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 17 treesize of output 13 [2022-02-18 23:00:20,651 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:00:20,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:00:20,775 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 23:00:20,776 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 33 treesize of output 37 [2022-02-18 23:00:21,246 INFO L353 Elim1Store]: treesize reduction 156, result has 49.5 percent of original size [2022-02-18 23:00:21,247 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 58 treesize of output 182 [2022-02-18 23:00:22,934 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 15 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:00:22,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876007611] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:00:22,935 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:00:22,935 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2022-02-18 23:00:22,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135733950] [2022-02-18 23:00:22,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:00:22,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-18 23:00:22,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:00:22,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-18 23:00:22,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=877, Unknown=0, NotChecked=0, Total=992 [2022-02-18 23:00:22,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:22,944 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:00:22,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.65625) internal successors, (117), 31 states have internal predecessors, (117), 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) [2022-02-18 23:00:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:00:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:00:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:23,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:23,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:23,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:23,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:00:23,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:00:23,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:23,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-18 23:00:23,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:23,745 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:00:23,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:00:23,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1873575092, now seen corresponding path program 5 times [2022-02-18 23:00:23,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:00:23,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856931203] [2022-02-18 23:00:23,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:00:23,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:00:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:00:23,852 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 25 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 23:00:23,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:00:23,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856931203] [2022-02-18 23:00:23,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856931203] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:00:23,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828451050] [2022-02-18 23:00:23,853 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 23:00:23,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:23,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:00:23,854 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) [2022-02-18 23:00:23,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-18 23:00:23,927 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-02-18 23:00:23,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:00:23,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-18 23:00:23,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:00:23,995 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 25 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 23:00:23,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:00:24,087 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 25 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 23:00:24,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828451050] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:00:24,087 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:00:24,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 12 [2022-02-18 23:00:24,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142366917] [2022-02-18 23:00:24,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:00:24,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-18 23:00:24,088 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:00:24,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-18 23:00:24,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-02-18 23:00:24,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:24,088 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:00:24,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 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) [2022-02-18 23:00:24,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:24,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:24,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:24,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:00:24,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:00:24,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:24,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:00:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:00:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:00:24,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-18 23:00:24,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:24,375 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:00:24,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:00:24,375 INFO L85 PathProgramCache]: Analyzing trace with hash -706851012, now seen corresponding path program 6 times [2022-02-18 23:00:24,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:00:24,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236477757] [2022-02-18 23:00:24,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:00:24,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:00:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:00:24,680 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:00:24,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:00:24,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236477757] [2022-02-18 23:00:24,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236477757] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:00:24,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076066554] [2022-02-18 23:00:24,680 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-18 23:00:24,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:24,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:00:24,682 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) [2022-02-18 23:00:24,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-18 23:00:24,734 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2022-02-18 23:00:24,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:00:24,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 38 conjunts are in the unsatisfiable core [2022-02-18 23:00:24,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:00:25,980 INFO L353 Elim1Store]: treesize reduction 74, result has 54.0 percent of original size [2022-02-18 23:00:25,980 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 111 treesize of output 145 [2022-02-18 23:00:26,875 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 17 treesize of output 13 [2022-02-18 23:00:26,918 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:00:26,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:00:27,332 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 23:00:27,333 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 36 treesize of output 40 [2022-02-18 23:00:28,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:28,752 INFO L353 Elim1Store]: treesize reduction 156, result has 59.5 percent of original size [2022-02-18 23:00:28,752 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 68 treesize of output 264 [2022-02-18 23:00:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:00:31,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076066554] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:00:31,000 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:00:31,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 15] total 40 [2022-02-18 23:00:31,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059843790] [2022-02-18 23:00:31,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:00:31,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-02-18 23:00:31,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:00:31,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-02-18 23:00:31,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1472, Unknown=0, NotChecked=0, Total=1640 [2022-02-18 23:00:31,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:31,004 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:00:31,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.292682926829268) internal successors, (135), 40 states have internal predecessors, (135), 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) [2022-02-18 23:00:31,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:31,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:31,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:31,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:00:31,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:00:31,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:31,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:00:31,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:32,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:32,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:32,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:32,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:00:32,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:00:32,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:32,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:00:32,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 23:00:32,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-18 23:00:32,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:32,297 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:00:32,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:00:32,297 INFO L85 PathProgramCache]: Analyzing trace with hash -566421696, now seen corresponding path program 7 times [2022-02-18 23:00:32,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:00:32,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704326685] [2022-02-18 23:00:32,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:00:32,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:00:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:00:32,401 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 35 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 23:00:32,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:00:32,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704326685] [2022-02-18 23:00:32,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704326685] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:00:32,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553394809] [2022-02-18 23:00:32,402 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-18 23:00:32,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:32,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:00:32,403 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) [2022-02-18 23:00:32,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-18 23:00:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:00:32,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-18 23:00:32,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:00:32,561 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 48 proven. 35 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 23:00:32,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:00:32,625 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 48 proven. 35 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 23:00:32,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553394809] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:00:32,626 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:00:32,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 14 [2022-02-18 23:00:32,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383685872] [2022-02-18 23:00:32,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:00:32,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-18 23:00:32,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:00:32,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-18 23:00:32,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2022-02-18 23:00:32,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:32,627 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:00:32,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.2) internal successors, (78), 14 states have internal predecessors, (78), 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) [2022-02-18 23:00:32,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:32,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:32,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:32,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:00:32,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:00:32,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:32,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:00:32,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-18 23:00:32,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:00:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:00:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:00:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 23:00:32,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 23:00:32,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-18 23:00:32,940 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,SelfDestructingSolverStorable8 [2022-02-18 23:00:32,940 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:00:32,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:00:32,940 INFO L85 PathProgramCache]: Analyzing trace with hash 455212368, now seen corresponding path program 8 times [2022-02-18 23:00:32,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:00:32,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650318408] [2022-02-18 23:00:32,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:00:32,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:00:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:00:33,073 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 49 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 23:00:33,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:00:33,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650318408] [2022-02-18 23:00:33,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650318408] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:00:33,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368821360] [2022-02-18 23:00:33,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 23:00:33,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:33,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:00:33,075 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) [2022-02-18 23:00:33,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-18 23:00:33,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 23:00:33,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:00:33,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 14 conjunts are in the unsatisfiable core [2022-02-18 23:00:33,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:00:33,216 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 49 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 23:00:33,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:00:33,318 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 49 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 23:00:33,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368821360] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:00:33,319 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:00:33,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 8] total 16 [2022-02-18 23:00:33,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813041704] [2022-02-18 23:00:33,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:00:33,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-18 23:00:33,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:00:33,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-18 23:00:33,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=164, Unknown=0, NotChecked=0, Total=272 [2022-02-18 23:00:33,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:33,321 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:00:33,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:00:33,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:33,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:33,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:33,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:00:33,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:00:33,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:33,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:00:33,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-18 23:00:33,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-18 23:00:33,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:00:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:00:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:00:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:00:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:00:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:00:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 23:00:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 23:00:33,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 23:00:33,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-18 23:00:33,608 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,SelfDestructingSolverStorable9 [2022-02-18 23:00:33,609 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:00:33,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:00:33,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1817353536, now seen corresponding path program 9 times [2022-02-18 23:00:33,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:00:33,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528967252] [2022-02-18 23:00:33,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:00:33,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:00:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:00:34,080 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:00:34,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:00:34,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528967252] [2022-02-18 23:00:34,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528967252] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:00:34,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897350223] [2022-02-18 23:00:34,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 23:00:34,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:00:34,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:00:34,082 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) [2022-02-18 23:00:34,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-18 23:00:34,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-02-18 23:00:34,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:00:34,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 48 conjunts are in the unsatisfiable core [2022-02-18 23:00:34,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:00:36,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:00:36,490 INFO L353 Elim1Store]: treesize reduction 80, result has 80.5 percent of original size [2022-02-18 23:00:36,490 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 18 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 37 case distinctions, treesize of input 157 treesize of output 411 [2022-02-18 23:00:57,486 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 17 treesize of output 13 [2022-02-18 23:00:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 26 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:00:57,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:00:58,134 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 23:00:58,134 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 47 treesize of output 51 [2022-02-18 23:01:00,002 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:01:00,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:01:00,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:01:00,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:01:00,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:01:00,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:01:00,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:01:00,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:01:00,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:01:00,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:01:00,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:01:00,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:01:00,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:01:00,008 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:01:00,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:01:00,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:01:00,377 INFO L353 Elim1Store]: treesize reduction 108, result has 74.3 percent of original size [2022-02-18 23:01:00,377 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 6 disjoint index pairs (out of 91 index pairs), introduced 10 new quantified variables, introduced 63 case distinctions, treesize of input 94 treesize of output 358 [2022-02-18 23:01:39,802 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 9 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:01:39,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897350223] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:01:39,803 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:01:39,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 19] total 52 [2022-02-18 23:01:39,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25391065] [2022-02-18 23:01:39,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:01:39,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-02-18 23:01:39,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:01:39,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-02-18 23:01:39,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=2480, Unknown=0, NotChecked=0, Total=2756 [2022-02-18 23:01:39,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:01:39,805 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:01:39,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.1132075471698113) internal successors, (165), 52 states have internal predecessors, (165), 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) [2022-02-18 23:01:39,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:39,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:39,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:39,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:01:39,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:01:39,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:39,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:01:39,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-18 23:01:39,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-18 23:01:39,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-18 23:01:39,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:01:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:01:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:01:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:01:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 23:01:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 23:01:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 23:01:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-18 23:01:42,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-18 23:01:43,107 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,SelfDestructingSolverStorable10 [2022-02-18 23:01:43,107 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:01:43,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:01:43,108 INFO L85 PathProgramCache]: Analyzing trace with hash 482761866, now seen corresponding path program 10 times [2022-02-18 23:01:43,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:01:43,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789237104] [2022-02-18 23:01:43,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:01:43,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:01:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:01:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 124 proven. 70 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-02-18 23:01:43,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:01:43,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789237104] [2022-02-18 23:01:43,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789237104] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:01:43,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116158741] [2022-02-18 23:01:43,249 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 23:01:43,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:01:43,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:01:43,250 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) [2022-02-18 23:01:43,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-18 23:01:43,300 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 23:01:43,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:01:43,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-18 23:01:43,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:01:43,418 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 128 proven. 70 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-18 23:01:43,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:01:43,550 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 128 proven. 70 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-18 23:01:43,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116158741] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:01:43,550 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:01:43,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 9] total 18 [2022-02-18 23:01:43,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009261642] [2022-02-18 23:01:43,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:01:43,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 23:01:43,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:01:43,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 23:01:43,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2022-02-18 23:01:43,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:01:43,552 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:01:43,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.842105263157895) internal successors, (92), 18 states have internal predecessors, (92), 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) [2022-02-18 23:01:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:01:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:01:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:01:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-18 23:01:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-18 23:01:43,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-18 23:01:43,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-18 23:01:43,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:01:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:01:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:01:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:01:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 23:01:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 23:01:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 23:01:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-18 23:01:43,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:01:43,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-18 23:01:43,853 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,SelfDestructingSolverStorable11 [2022-02-18 23:01:43,854 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:01:43,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:01:43,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1178787174, now seen corresponding path program 11 times [2022-02-18 23:01:43,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:01:43,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510860223] [2022-02-18 23:01:43,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:01:43,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:01:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:01:44,067 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 132 proven. 92 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-02-18 23:01:44,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:01:44,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510860223] [2022-02-18 23:01:44,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510860223] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:01:44,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817385108] [2022-02-18 23:01:44,067 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 23:01:44,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:01:44,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:01:44,084 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) [2022-02-18 23:01:44,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-18 23:01:44,138 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2022-02-18 23:01:44,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:01:44,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-18 23:01:44,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:01:44,249 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 135 proven. 92 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-18 23:01:44,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:01:44,350 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 135 proven. 92 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-18 23:01:44,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817385108] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:01:44,350 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:01:44,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 10, 10] total 20 [2022-02-18 23:01:44,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636947329] [2022-02-18 23:01:44,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:01:44,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 23:01:44,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:01:44,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 23:01:44,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2022-02-18 23:01:44,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:01:44,351 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:01:44,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 20 states have internal predecessors, (99), 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) [2022-02-18 23:01:44,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:44,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:44,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:44,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:01:44,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:01:44,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:44,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:01:44,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-18 23:01:44,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-18 23:01:44,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-18 23:01:44,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-18 23:01:44,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:01:44,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:01:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:01:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:01:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:01:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 23:01:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 23:01:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 23:01:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-18 23:01:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:01:44,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:01:44,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-18 23:01:44,671 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,SelfDestructingSolverStorable12 [2022-02-18 23:01:44,671 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:01:44,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:01:44,672 INFO L85 PathProgramCache]: Analyzing trace with hash -888151414, now seen corresponding path program 12 times [2022-02-18 23:01:44,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:01:44,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084993955] [2022-02-18 23:01:44,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:01:44,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:01:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:01:44,888 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 138 proven. 117 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-18 23:01:44,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:01:44,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084993955] [2022-02-18 23:01:44,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084993955] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:01:44,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039804771] [2022-02-18 23:01:44,889 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-18 23:01:44,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:01:44,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:01:44,890 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:01:44,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-18 23:01:44,949 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2022-02-18 23:01:44,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:01:44,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 22 conjunts are in the unsatisfiable core [2022-02-18 23:01:44,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:01:45,033 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 144 proven. 117 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 23:01:45,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:01:45,117 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 144 proven. 117 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 23:01:45,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039804771] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:01:45,118 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:01:45,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 13] total 26 [2022-02-18 23:01:45,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449689023] [2022-02-18 23:01:45,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:01:45,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-18 23:01:45,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:01:45,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-18 23:01:45,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=428, Unknown=0, NotChecked=0, Total=702 [2022-02-18 23:01:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:01:45,121 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:01:45,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.925925925925926) internal successors, (133), 26 states have internal predecessors, (133), 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) [2022-02-18 23:01:45,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:45,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:45,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:45,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:01:45,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:01:45,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:45,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:01:45,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-18 23:01:45,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-18 23:01:45,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-18 23:01:45,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-18 23:01:45,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:01:45,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:01:45,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:01:45,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:45,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:01:45,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:45,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:01:45,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 23:01:45,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:01:45,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 23:01:45,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 23:01:45,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 23:01:45,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 23:01:45,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-18 23:01:45,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:01:45,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:01:45,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-18 23:01:45,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-18 23:01:45,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-18 23:01:45,423 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-18 23:01:45,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:01:45,423 INFO L85 PathProgramCache]: Analyzing trace with hash 2093684378, now seen corresponding path program 13 times [2022-02-18 23:01:45,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:01:45,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097379421] [2022-02-18 23:01:45,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:01:45,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:01:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:01:46,220 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:01:46,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:01:46,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097379421] [2022-02-18 23:01:46,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097379421] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:01:46,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089233367] [2022-02-18 23:01:46,220 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-18 23:01:46,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:01:46,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:01:46,221 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:01:46,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-18 23:01:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:01:46,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-18 23:01:46,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:01:50,778 INFO L353 Elim1Store]: treesize reduction 770, result has 0.1 percent of original size [2022-02-18 23:01:50,778 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 274 treesize of output 136 [2022-02-18 23:01:50,869 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 17 treesize of output 13 [2022-02-18 23:01:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:01:50,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:01:51,744 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 23:01:51,744 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 73 treesize of output 77 [2022-02-18 23:02:00,330 WARN L228 SmtUtils]: Spent 6.49s on a formula simplification. DAG size of input: 1164 DAG size of output: 636 (called from [L 350] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-02-18 23:02:00,332 INFO L353 Elim1Store]: treesize reduction 1804, result has 44.0 percent of original size [2022-02-18 23:02:00,332 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 162 treesize of output 1486 Received shutdown request... [2022-02-18 23:14:23,965 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-18 23:14:23,982 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-18 23:14:23,986 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-18 23:14:23,987 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-18 23:14:24,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-02-18 23:14:24,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:14:24,184 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 85 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-4-2-11-2-10-2-9-2-8-2-7-2-6-2-5-2-4-2-3-2-2-2-1 context. [2022-02-18 23:14:24,185 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-18 23:14:24,185 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-18 23:14:24,186 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-18 23:14:24,186 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-18 23:14:24,190 INFO L732 BasicCegarLoop]: Path program histogram: [13, 2] [2022-02-18 23:14:24,192 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-18 23:14:24,192 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-18 23:14:24,194 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 11:14:24 BasicIcfg [2022-02-18 23:14:24,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-18 23:14:24,194 INFO L158 Benchmark]: Toolchain (without parser) took 847604.04ms. Allocated memory was 177.2MB in the beginning and 846.2MB in the end (delta: 669.0MB). Free memory was 137.1MB in the beginning and 311.8MB in the end (delta: -174.7MB). Peak memory consumption was 523.2MB. Max. memory is 8.0GB. [2022-02-18 23:14:24,195 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 177.2MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 23:14:24,195 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.59ms. Allocated memory is still 177.2MB. Free memory was 137.0MB in the beginning and 135.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 23:14:24,195 INFO L158 Benchmark]: Boogie Preprocessor took 11.37ms. Allocated memory is still 177.2MB. Free memory was 135.4MB in the beginning and 134.5MB in the end (delta: 975.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 23:14:24,195 INFO L158 Benchmark]: RCFGBuilder took 248.52ms. Allocated memory is still 177.2MB. Free memory was 134.5MB in the beginning and 124.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-18 23:14:24,195 INFO L158 Benchmark]: TraceAbstraction took 847316.07ms. Allocated memory was 177.2MB in the beginning and 846.2MB in the end (delta: 669.0MB). Free memory was 123.9MB in the beginning and 311.8MB in the end (delta: -187.9MB). Peak memory consumption was 509.5MB. Max. memory is 8.0GB. [2022-02-18 23:14:24,196 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 0.09ms. Allocated memory is still 177.2MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.59ms. Allocated memory is still 177.2MB. Free memory was 137.0MB in the beginning and 135.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.37ms. Allocated memory is still 177.2MB. Free memory was 135.4MB in the beginning and 134.5MB in the end (delta: 975.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 248.52ms. Allocated memory is still 177.2MB. Free memory was 134.5MB in the beginning and 124.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 847316.07ms. Allocated memory was 177.2MB in the beginning and 846.2MB in the end (delta: 669.0MB). Free memory was 123.9MB in the beginning and 311.8MB in the end (delta: -187.9MB). Peak memory consumption was 509.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 12647, positive: 10857, positive conditional: 10857, positive unconditional: 0, negative: 1790, negative conditional: 1790, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10910, positive: 10857, positive conditional: 10857, positive unconditional: 0, negative: 53, negative conditional: 53, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10910, positive: 10857, positive conditional: 10857, positive unconditional: 0, negative: 53, negative conditional: 53, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11537, positive: 10857, positive conditional: 10396, positive unconditional: 461, negative: 680, negative conditional: 627, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11537, positive: 10857, positive conditional: 7917, positive unconditional: 2940, negative: 680, negative conditional: 505, negative unconditional: 175, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11537, positive: 10857, positive conditional: 7917, positive unconditional: 2940, negative: 680, negative conditional: 505, negative unconditional: 175, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 428, positive: 305, positive conditional: 192, positive unconditional: 113, negative: 123, negative conditional: 119, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 428, positive: 260, positive conditional: 0, positive unconditional: 260, negative: 168, negative conditional: 0, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 168, positive: 45, positive conditional: 38, positive unconditional: 7, negative: 123, negative conditional: 119, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 301, positive: 119, positive conditional: 61, positive unconditional: 58, negative: 182, negative conditional: 173, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11537, positive: 10552, positive conditional: 7725, positive unconditional: 2827, negative: 557, negative conditional: 386, negative unconditional: 171, unknown: 428, unknown conditional: 311, unknown unconditional: 117] , Statistics on independence cache: Total cache size (in pairs): 428, Positive cache size: 305, Positive conditional cache size: 192, Positive unconditional cache size: 113, Negative cache size: 123, Negative conditional cache size: 119, Negative unconditional cache size: 4, Eliminated conditions: 2601, Maximal queried relation: 12, Independence queries for same thread: 1737 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 85 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-4-2-11-2-10-2-9-2-8-2-7-2-6-2-5-2-4-2-3-2-2-2-1 context. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 85 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-4-2-11-2-10-2-9-2-8-2-7-2-6-2-5-2-4-2-3-2-2-2-1 context. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 85 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-4-2-11-2-10-2-9-2-8-2-7-2-6-2-5-2-4-2-3-2-2-2-1 context. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 85 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-4-2-11-2-10-2-9-2-8-2-7-2-6-2-5-2-4-2-3-2-2-2-1 context. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 85 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-4-2-11-2-10-2-9-2-8-2-7-2-6-2-5-2-4-2-3-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 847.2s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 6.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 206, 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, 78.7s InterpolantComputationTime, 1314 NumberOfCodeBlocks, 1314 NumberOfCodeBlocksAsserted, 74 NumberOfCheckSat, 1830 ConstructedInterpolants, 74 QuantifiedInterpolants, 21276 SizeOfPredicates, 33 NumberOfNonLiveVariables, 1846 ConjunctsInSsa, 227 ConjunctsInUnsatCore, 36 InterpolantComputations, 4 PerfectInterpolantSequences, 1872/3656 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown