/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-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/send-receive-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-24 22:51:48,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 22:51:48,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 22:51:48,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-24 22:51:48,260 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-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe.epf [2021-10-24 22:51:48,290 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 22:51:48,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 22:51:48,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-24 22:51:48,290 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-24 22:51:48,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 22:51:48,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 22:51:48,291 INFO L138 SettingsManager]: * Use SBE=true [2021-10-24 22:51:48,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 22:51:48,292 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 22:51:48,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 22:51:48,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 22:51:48,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 22:51:48,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 22:51:48,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 22:51:48,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 22:51:48,293 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 22:51:48,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 22:51:48,293 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 22:51:48,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 22:51:48,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 22:51:48,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 22:51:48,293 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-24 22:51:48,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 22:51:48,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 22:51:48,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 22:51:48,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 22:51:48,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 22:51:48,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-24 22:51:48,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 22:51:48,294 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-24 22:51:48,294 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-24 22:51:48,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 22:51:48,295 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-24 22:51:48,295 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-24 22:51:48,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 22:51:48,295 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-24 22:51:48,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 22:51:48,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 22:51:48,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 22:51:48,486 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-24 22:51:48,487 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-24 22:51:48,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/send-receive-alt.wvr.bpl [2021-10-24 22:51:48,488 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/send-receive-alt.wvr.bpl' [2021-10-24 22:51:48,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 22:51:48,516 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-24 22:51:48,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 22:51:48,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 22:51:48,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 22:51:48,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:51:48" (1/1) ... [2021-10-24 22:51:48,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:51:48" (1/1) ... [2021-10-24 22:51:48,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 22:51:48,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 22:51:48,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 22:51:48,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 22:51:48,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:51:48" (1/1) ... [2021-10-24 22:51:48,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:51:48" (1/1) ... [2021-10-24 22:51:48,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:51:48" (1/1) ... [2021-10-24 22:51:48,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:51:48" (1/1) ... [2021-10-24 22:51:48,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:51:48" (1/1) ... [2021-10-24 22:51:48,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:51:48" (1/1) ... [2021-10-24 22:51:48,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:51:48" (1/1) ... [2021-10-24 22:51:48,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 22:51:48,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 22:51:48,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 22:51:48,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 22:51:48,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:51:48" (1/1) ... [2021-10-24 22:51:48,554 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 22:51:48,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:51:48,582 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) [2021-10-24 22:51:48,602 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 [2021-10-24 22:51:48,622 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-24 22:51:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-24 22:51:48,623 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-24 22:51:48,623 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-24 22:51:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-24 22:51:48,623 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-24 22:51:48,623 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-24 22:51:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 22:51:48,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 22:51:48,624 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-24 22:51:48,760 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 22:51:48,760 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-10-24 22:51:48,761 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-10-24 22:51:48,762 INFO L202 PluginConnector]: Adding new model send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:51:48 BoogieIcfgContainer [2021-10-24 22:51:48,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 22:51:48,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 22:51:48,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 22:51:48,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 22:51:48,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:51:48" (1/2) ... [2021-10-24 22:51:48,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fac257 and model type send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:51:48, skipping insertion in model container [2021-10-24 22:51:48,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:51:48" (2/2) ... [2021-10-24 22:51:48,781 INFO L111 eAbstractionObserver]: Analyzing ICFG send-receive-alt.wvr.bpl [2021-10-24 22:51:48,784 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-24 22:51:48,784 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 22:51:48,784 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 22:51:48,784 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-24 22:51:48,810 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-24 22:51:48,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-24 22:51:48,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:51:48,862 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) [2021-10-24 22:51:48,863 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 [2021-10-24 22:51:48,899 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-24 22:51:48,903 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, mConcurrency=PARTIAL_ORDER_FA, 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 [2021-10-24 22:51:48,903 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 22:51:48,986 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:51:48,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:51:48,989 INFO L82 PathProgramCache]: Analyzing trace with hash -612514274, now seen corresponding path program 1 times [2021-10-24 22:51:48,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:51:48,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044434228] [2021-10-24 22:51:48,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:51:48,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:51:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:51:49,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:51:49,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:51:49,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044434228] [2021-10-24 22:51:49,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044434228] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 22:51:49,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 22:51:49,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 22:51:49,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542586312] [2021-10-24 22:51:49,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 22:51:49,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:51:49,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 22:51:49,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 22:51:49,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:49,131 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:51:49,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-10-24 22:51:49,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:49,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:49,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 22:51:49,159 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:51:49,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:51:49,161 INFO L82 PathProgramCache]: Analyzing trace with hash -987070873, now seen corresponding path program 1 times [2021-10-24 22:51:49,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:51:49,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481113731] [2021-10-24 22:51:49,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:51:49,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:51:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:51:49,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:51:49,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:51:49,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481113731] [2021-10-24 22:51:49,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481113731] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 22:51:49,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 22:51:49,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 22:51:49,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442516657] [2021-10-24 22:51:49,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 22:51:49,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:51:49,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 22:51:49,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 22:51:49,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:49,237 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:51:49,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2021-10-24 22:51:49,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:49,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:49,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:49,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:49,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 22:51:49,262 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:51:49,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:51:49,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1304321976, now seen corresponding path program 1 times [2021-10-24 22:51:49,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:51:49,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117329225] [2021-10-24 22:51:49,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:51:49,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:51:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:51:49,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:51:49,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:51:49,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117329225] [2021-10-24 22:51:49,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117329225] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:49,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154013520] [2021-10-24 22:51:49,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:51:49,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:51:49,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:51:49,391 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) [2021-10-24 22:51:49,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-24 22:51:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:51:49,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-24 22:51:49,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:51:49,557 INFO L388 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 16 treesize of output 10 [2021-10-24 22:51:49,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:51:49,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154013520] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:49,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:51:49,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-24 22:51:49,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316338878] [2021-10-24 22:51:49,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 22:51:49,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:51:49,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 22:51:49,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-24 22:51:49,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:49,604 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:51:49,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-10-24 22:51:49,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:49,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:49,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:49,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:49,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:49,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:49,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-24 22:51:49,862 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 [2021-10-24 22:51:49,863 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:51:49,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:51:49,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1738430269, now seen corresponding path program 2 times [2021-10-24 22:51:49,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:51:49,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901326981] [2021-10-24 22:51:49,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:51:49,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:51:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:51:49,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:51:49,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:51:49,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901326981] [2021-10-24 22:51:49,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901326981] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 22:51:49,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 22:51:49,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 22:51:49,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135777294] [2021-10-24 22:51:49,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 22:51:49,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:51:49,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 22:51:49,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-24 22:51:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:49,916 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:51:49,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-24 22:51:49,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:49,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:49,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:49,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:49,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:49,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:49,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:49,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:49,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-24 22:51:49,933 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:51:49,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:51:49,933 INFO L82 PathProgramCache]: Analyzing trace with hash 2026072000, now seen corresponding path program 3 times [2021-10-24 22:51:49,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:51:49,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185431280] [2021-10-24 22:51:49,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:51:49,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:51:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:51:49,954 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 22:51:49,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:51:49,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185431280] [2021-10-24 22:51:49,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185431280] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:49,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440466222] [2021-10-24 22:51:49,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-24 22:51:49,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:51:49,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:51:49,955 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) [2021-10-24 22:51:49,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-24 22:51:50,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-24 22:51:50,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:51:50,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 22:51:50,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:51:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 22:51:50,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440466222] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:50,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:51:50,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-24 22:51:50,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128647341] [2021-10-24 22:51:50,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 22:51:50,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:51:50,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 22:51:50,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 22:51:50,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:50,050 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:51:50,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 22:51:50,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:50,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:50,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:50,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:50,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:50,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-24 22:51:50,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:51:50,289 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:51:50,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:51:50,289 INFO L82 PathProgramCache]: Analyzing trace with hash 22104032, now seen corresponding path program 1 times [2021-10-24 22:51:50,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:51:50,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994052095] [2021-10-24 22:51:50,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:51:50,290 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:51:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:51:50,411 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:51:50,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:51:50,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994052095] [2021-10-24 22:51:50,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994052095] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:50,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455504007] [2021-10-24 22:51:50,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:51:50,416 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:51:50,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:51:50,416 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) [2021-10-24 22:51:50,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-24 22:51:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:51:50,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-24 22:51:50,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:51:50,691 INFO L354 Elim1Store]: treesize reduction 26, result has 10.3 percent of original size [2021-10-24 22:51:50,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 28 [2021-10-24 22:51:50,732 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:51:50,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455504007] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:50,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:51:50,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-10-24 22:51:50,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193816624] [2021-10-24 22:51:50,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 22:51:50,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:51:50,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 22:51:50,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-24 22:51:50,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:50,734 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:51:50,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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) [2021-10-24 22:51:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:50,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:51:50,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-24 22:51:50,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:51:50,984 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:51:50,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:51:50,985 INFO L82 PathProgramCache]: Analyzing trace with hash -623510552, now seen corresponding path program 2 times [2021-10-24 22:51:50,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:51:50,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246793730] [2021-10-24 22:51:50,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:51:50,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:51:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:51:51,211 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:51:51,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:51:51,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246793730] [2021-10-24 22:51:51,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246793730] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:51,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530912441] [2021-10-24 22:51:51,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-24 22:51:51,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:51:51,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:51:51,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 22:51:51,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-24 22:51:51,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-24 22:51:51,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:51:51,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-24 22:51:51,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:51:51,664 INFO L354 Elim1Store]: treesize reduction 98, result has 6.7 percent of original size [2021-10-24 22:51:51,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 36 [2021-10-24 22:51:51,704 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:51:51,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530912441] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:51,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:51:51,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-10-24 22:51:51,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349795619] [2021-10-24 22:51:51,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-24 22:51:51,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:51:51,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-24 22:51:51,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-10-24 22:51:51,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:51,709 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:51:51,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 13 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) [2021-10-24 22:51:51,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:51,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:51,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:51,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:51,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:51,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:51:51,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:51,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:51,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:51,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:51,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:51,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:51,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:51:51,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:51:51,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-10-24 22:51:52,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:51:52,031 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:51:52,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:51:52,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1773576048, now seen corresponding path program 3 times [2021-10-24 22:51:52,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:51:52,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061700837] [2021-10-24 22:51:52,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:51:52,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:51:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:51:52,368 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 59 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 22:51:52,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:51:52,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061700837] [2021-10-24 22:51:52,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061700837] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:52,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497934228] [2021-10-24 22:51:52,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-24 22:51:52,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:51:52,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:51:52,371 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) [2021-10-24 22:51:52,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-24 22:51:52,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-24 22:51:52,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:51:52,497 WARN L261 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-24 22:51:52,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:51:53,477 INFO L354 Elim1Store]: treesize reduction 605, result has 2.6 percent of original size [2021-10-24 22:51:53,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 115 treesize of output 64 [2021-10-24 22:51:53,510 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:51:53,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497934228] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:53,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:51:53,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 23 [2021-10-24 22:51:53,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388117845] [2021-10-24 22:51:53,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-24 22:51:53,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:51:53,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-24 22:51:53,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2021-10-24 22:51:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:53,512 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:51:53,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 23 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 22:51:53,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:53,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:53,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:53,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:53,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:53,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:51:53,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:51:53,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:53,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:53,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:53,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:53,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:53,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:53,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:51:53,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:51:53,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:51:53,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-24 22:51:53,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:51:53,849 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:51:53,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:51:53,849 INFO L82 PathProgramCache]: Analyzing trace with hash -894562683, now seen corresponding path program 4 times [2021-10-24 22:51:53,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:51:53,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184245380] [2021-10-24 22:51:53,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:51:53,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:51:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:51:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 25 proven. 21 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-24 22:51:53,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:51:53,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184245380] [2021-10-24 22:51:53,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184245380] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:53,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851412438] [2021-10-24 22:51:53,913 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-24 22:51:53,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:51:53,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:51:53,914 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) [2021-10-24 22:51:53,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-24 22:51:54,084 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-24 22:51:54,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:51:54,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-24 22:51:54,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:51:54,173 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 25 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-24 22:51:54,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851412438] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:54,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:51:54,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2021-10-24 22:51:54,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781847942] [2021-10-24 22:51:54,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 22:51:54,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:51:54,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 22:51:54,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-24 22:51:54,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:54,174 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:51:54,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 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) [2021-10-24 22:51:54,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:54,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:54,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:54,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:54,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:54,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:51:54,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:51:54,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:51:54,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:54,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:51:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:51:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:51:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:51:54,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-24 22:51:54,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:51:54,402 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:51:54,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:51:54,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1520765816, now seen corresponding path program 5 times [2021-10-24 22:51:54,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:51:54,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242989058] [2021-10-24 22:51:54,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:51:54,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:51:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:51:54,731 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 5 proven. 80 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 22:51:54,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:51:54,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242989058] [2021-10-24 22:51:54,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242989058] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:54,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445094203] [2021-10-24 22:51:54,731 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-24 22:51:54,732 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:51:54,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:51:54,732 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) [2021-10-24 22:51:54,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-24 22:51:54,922 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-10-24 22:51:54,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:51:54,923 WARN L261 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 58 conjunts are in the unsatisfiable core [2021-10-24 22:51:54,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:51:56,246 INFO L354 Elim1Store]: treesize reduction 870, result has 2.1 percent of original size [2021-10-24 22:51:56,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 132 treesize of output 72 [2021-10-24 22:51:56,282 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 22 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:51:56,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445094203] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:56,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:51:56,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 27 [2021-10-24 22:51:56,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013019519] [2021-10-24 22:51:56,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-24 22:51:56,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:51:56,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-24 22:51:56,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2021-10-24 22:51:56,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:56,284 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:51:56,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.2857142857142856) internal successors, (64), 27 states have internal predecessors, (64), 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) [2021-10-24 22:51:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:51:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:51:56,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:51:56,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:51:56,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:51:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:51:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:51:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:51:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:51:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:51:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:51:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:51:56,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-24 22:51:56,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-24 22:51:56,761 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,SelfDestructingSolverStorable9 [2021-10-24 22:51:56,761 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:51:56,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:51:56,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1261095213, now seen corresponding path program 6 times [2021-10-24 22:51:56,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:51:56,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951129876] [2021-10-24 22:51:56,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:51:56,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:51:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:51:57,274 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 7 proven. 238 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-24 22:51:57,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:51:57,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951129876] [2021-10-24 22:51:57,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951129876] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:51:57,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692408374] [2021-10-24 22:51:57,275 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-24 22:51:57,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:51:57,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:51:57,297 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) [2021-10-24 22:51:57,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-24 22:51:57,589 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-10-24 22:51:57,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:51:57,590 WARN L261 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 99 conjunts are in the unsatisfiable core [2021-10-24 22:51:57,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:52:02,226 INFO L354 Elim1Store]: treesize reduction 2959, result has 1.1 percent of original size [2021-10-24 22:52:02,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 23 select indices, 23 select index equivalence classes, 0 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 253 case distinctions, treesize of input 229 treesize of output 122 [2021-10-24 22:52:02,271 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 72 proven. 211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:52:02,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692408374] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:52:02,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:52:02,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 27] total 37 [2021-10-24 22:52:02,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027105007] [2021-10-24 22:52:02,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-24 22:52:02,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:52:02,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-24 22:52:02,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1209, Unknown=0, NotChecked=0, Total=1406 [2021-10-24 22:52:02,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:52:02,273 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:52:02,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.3421052631578947) internal successors, (89), 37 states have internal predecessors, (89), 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) [2021-10-24 22:52:02,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:02,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:02,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:52:02,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:02,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:02,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:52:02,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:52:02,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:52:02,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:52:02,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-10-24 22:52:02,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:52:02,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:02,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:02,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:52:02,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:02,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:02,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:52:02,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:52:02,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:52:02,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:52:02,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-24 22:52:02,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-24 22:52:02,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-24 22:52:02,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:52:02,927 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:52:02,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:52:02,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1188030936, now seen corresponding path program 7 times [2021-10-24 22:52:02,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:52:02,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513907993] [2021-10-24 22:52:02,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:52:02,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:52:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:52:03,321 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 7 proven. 249 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-24 22:52:03,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:52:03,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513907993] [2021-10-24 22:52:03,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513907993] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:52:03,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985997947] [2021-10-24 22:52:03,322 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-24 22:52:03,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:52:03,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:52:03,323 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) [2021-10-24 22:52:03,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-24 22:52:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:52:03,848 WARN L261 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 105 conjunts are in the unsatisfiable core [2021-10-24 22:52:03,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:52:09,766 INFO L354 Elim1Store]: treesize reduction 3468, result has 1.1 percent of original size [2021-10-24 22:52:09,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 25 select indices, 25 select index equivalence classes, 0 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 300 case distinctions, treesize of input 240 treesize of output 126 [2021-10-24 22:52:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 74 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:52:09,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985997947] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:52:09,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:52:09,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 29] total 39 [2021-10-24 22:52:09,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748579841] [2021-10-24 22:52:09,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-24 22:52:09,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:52:09,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-24 22:52:09,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1353, Unknown=0, NotChecked=0, Total=1560 [2021-10-24 22:52:09,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:52:09,803 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:52:09,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.225) internal successors, (89), 39 states have internal predecessors, (89), 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) [2021-10-24 22:52:09,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:09,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:09,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:52:09,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:09,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:09,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:52:09,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:52:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:52:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:52:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-10-24 22:52:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-24 22:52:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:52:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:52:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:52:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:52:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:52:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:52:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-24 22:52:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-24 22:52:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-24 22:52:10,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-24 22:52:10,280 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,SelfDestructingSolverStorable11 [2021-10-24 22:52:10,280 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:52:10,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:52:10,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1538211328, now seen corresponding path program 8 times [2021-10-24 22:52:10,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:52:10,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169416043] [2021-10-24 22:52:10,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:52:10,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:52:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:52:10,877 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 8 proven. 293 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-24 22:52:10,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:52:10,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169416043] [2021-10-24 22:52:10,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169416043] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:52:10,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257286540] [2021-10-24 22:52:10,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-24 22:52:10,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:52:10,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:52:10,879 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) [2021-10-24 22:52:10,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-24 22:52:11,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-24 22:52:11,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:52:11,585 WARN L261 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 113 conjunts are in the unsatisfiable core [2021-10-24 22:52:11,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:52:18,545 INFO L354 Elim1Store]: treesize reduction 4069, result has 1.0 percent of original size [2021-10-24 22:52:18,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 0 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 351 case distinctions, treesize of input 259 treesize of output 136 [2021-10-24 22:52:18,584 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 86 proven. 257 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:52:18,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257286540] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:52:18,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:52:18,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 31] total 42 [2021-10-24 22:52:18,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139928825] [2021-10-24 22:52:18,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-10-24 22:52:18,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:52:18,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-10-24 22:52:18,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=1558, Unknown=0, NotChecked=0, Total=1806 [2021-10-24 22:52:18,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:52:18,586 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:52:18,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.255813953488372) internal successors, (97), 42 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 22:52:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:52:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:52:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:52:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:52:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:52:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-10-24 22:52:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-24 22:52:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-24 22:52:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:52:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:52:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:52:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:52:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:52:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:52:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-24 22:52:19,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-24 22:52:19,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-24 22:52:19,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-24 22:52:19,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-24 22:52:19,262 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,SelfDestructingSolverStorable12 [2021-10-24 22:52:19,262 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:52:19,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:52:19,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1106150952, now seen corresponding path program 9 times [2021-10-24 22:52:19,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:52:19,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341521657] [2021-10-24 22:52:19,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:52:19,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:52:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:52:20,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 5 proven. 877 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-10-24 22:52:20,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:52:20,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341521657] [2021-10-24 22:52:20,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341521657] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:52:20,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125137055] [2021-10-24 22:52:20,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-24 22:52:20,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:52:20,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:52:20,100 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) [2021-10-24 22:52:20,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-24 22:52:21,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-10-24 22:52:21,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:52:21,095 WARN L261 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 185 conjunts are in the unsatisfiable core [2021-10-24 22:52:21,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:52:57,423 WARN L207 SmtUtils]: Spent 25.16 s on a formula simplification. DAG size of input: 4073 DAG size of output: 67 [2021-10-24 22:52:57,435 INFO L354 Elim1Store]: treesize reduction 11638, result has 0.6 percent of original size [2021-10-24 22:52:57,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 45 select indices, 45 select index equivalence classes, 0 disjoint index pairs (out of 990 index pairs), introduced 45 new quantified variables, introduced 990 case distinctions, treesize of input 420 treesize of output 216 [2021-10-24 22:52:57,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 274 proven. 769 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-24 22:52:57,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125137055] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:52:57,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:52:57,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 49] total 60 [2021-10-24 22:52:57,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879293030] [2021-10-24 22:52:57,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-10-24 22:52:57,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:52:57,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-10-24 22:52:57,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=3191, Unknown=0, NotChecked=0, Total=3660 [2021-10-24 22:52:57,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:52:57,484 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:52:57,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 2.3442622950819674) internal successors, (143), 60 states have internal predecessors, (143), 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) [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-24 22:52:57,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:52:58,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:58,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:52:58,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:52:58,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:58,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:52:58,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:52:58,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:52:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:52:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:52:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-24 22:52:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-24 22:52:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-24 22:52:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-24 22:52:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:52:58,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-24 22:52:58,739 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,SelfDestructingSolverStorable13 [2021-10-24 22:52:58,740 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:52:58,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:52:58,740 INFO L82 PathProgramCache]: Analyzing trace with hash 959090701, now seen corresponding path program 10 times [2021-10-24 22:52:58,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:52:58,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879965489] [2021-10-24 22:52:58,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:52:58,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:52:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:52:59,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 31 proven. 1121 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-10-24 22:52:59,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:52:59,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879965489] [2021-10-24 22:52:59,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879965489] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:52:59,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834299751] [2021-10-24 22:52:59,639 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-24 22:52:59,639 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:52:59,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:52:59,639 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) [2021-10-24 22:52:59,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-24 22:53:01,150 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-24 22:53:01,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:53:01,155 WARN L261 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 225 conjunts are in the unsatisfiable core [2021-10-24 22:53:01,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:54:12,016 WARN L207 SmtUtils]: Spent 54.06 s on a formula simplification. DAG size of input: 6078 DAG size of output: 82 [2021-10-24 22:54:12,016 INFO L354 Elim1Store]: treesize reduction 17523, result has 0.5 percent of original size [2021-10-24 22:54:12,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 55 select indices, 55 select index equivalence classes, 0 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 1485 case distinctions, treesize of input 511 treesize of output 262 [2021-10-24 22:54:12,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 408 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:54:12,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834299751] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:54:12,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:54:12,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 59] total 72 [2021-10-24 22:54:12,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119072287] [2021-10-24 22:54:12,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-10-24 22:54:12,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:54:12,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-10-24 22:54:12,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=609, Invalid=4647, Unknown=0, NotChecked=0, Total=5256 [2021-10-24 22:54:12,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:54:12,060 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:54:12,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 2.232876712328767) internal successors, (163), 72 states have internal predecessors, (163), 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) [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:54:12,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:54:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:54:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 22:54:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 22:54:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:54:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 22:54:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:54:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:54:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 22:54:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:54:14,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-24 22:54:14,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-24 22:54:14,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-24 22:54:14,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-24 22:54:14,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-10-24 22:54:14,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-10-24 22:54:14,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-24 22:54:14,578 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,SelfDestructingSolverStorable14 [2021-10-24 22:54:14,578 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 22:54:14,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:54:14,578 INFO L82 PathProgramCache]: Analyzing trace with hash -740289384, now seen corresponding path program 11 times [2021-10-24 22:54:14,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:54:14,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485190548] [2021-10-24 22:54:14,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:54:14,579 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:54:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:54:16,379 INFO L134 CoverageAnalysis]: Checked inductivity of 5294 backedges. 1 proven. 3818 refuted. 0 times theorem prover too weak. 1475 trivial. 0 not checked. [2021-10-24 22:54:16,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:54:16,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485190548] [2021-10-24 22:54:16,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485190548] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:54:16,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795674762] [2021-10-24 22:54:16,380 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-24 22:54:16,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:54:16,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:54:16,381 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) [2021-10-24 22:54:16,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-24 22:54:18,916 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 46 check-sat command(s) [2021-10-24 22:54:18,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:54:18,922 WARN L261 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 444 conjunts are in the unsatisfiable core [2021-10-24 22:54:18,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-10-24 23:06:12,572 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 [2021-10-24 23:06:12,579 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 [2021-10-24 23:06:12,579 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 [2021-10-24 23:06:12,632 WARN L223 SmtUtils]: Removed 985 from assertion stack [2021-10-24 23:06:12,634 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-24 23:06:12,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-10-24 23:06:12,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 23:06:12,849 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 232 with TraceHistMax 55,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 24255 for 629168ms.. [2021-10-24 23:06:12,853 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-24 23:06:12,854 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-24 23:06:12,889 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-24 23:06:12,889 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 23:06:12,890 INFO L202 PluginConnector]: Adding new model send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:06:12 BasicIcfg [2021-10-24 23:06:12,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 23:06:12,891 INFO L168 Benchmark]: Toolchain (without parser) took 864374.82 ms. Allocated memory was 195.0 MB in the beginning and 846.2 MB in the end (delta: 651.2 MB). Free memory was 157.6 MB in the beginning and 467.2 MB in the end (delta: -309.7 MB). Peak memory consumption was 651.9 MB. Max. memory is 8.0 GB. [2021-10-24 23:06:12,891 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 195.0 MB. Free memory was 158.7 MB in the beginning and 158.7 MB in the end (delta: 72.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-24 23:06:12,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.27 ms. Allocated memory is still 195.0 MB. Free memory was 157.5 MB in the beginning and 156.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-24 23:06:12,891 INFO L168 Benchmark]: Boogie Preprocessor took 10.53 ms. Allocated memory is still 195.0 MB. Free memory was 156.0 MB in the beginning and 155.2 MB in the end (delta: 888.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-24 23:06:12,892 INFO L168 Benchmark]: RCFGBuilder took 213.91 ms. Allocated memory is still 195.0 MB. Free memory was 155.1 MB in the beginning and 142.4 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-24 23:06:12,892 INFO L168 Benchmark]: TraceAbstraction took 864127.29 ms. Allocated memory was 195.0 MB in the beginning and 846.2 MB in the end (delta: 651.2 MB). Free memory was 141.9 MB in the beginning and 467.2 MB in the end (delta: -325.4 MB). Peak memory consumption was 636.1 MB. Max. memory is 8.0 GB. [2021-10-24 23:06:12,893 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 0.10 ms. Allocated memory is still 195.0 MB. Free memory was 158.7 MB in the beginning and 158.7 MB in the end (delta: 72.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.27 ms. Allocated memory is still 195.0 MB. Free memory was 157.5 MB in the beginning and 156.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.53 ms. Allocated memory is still 195.0 MB. Free memory was 156.0 MB in the beginning and 155.2 MB in the end (delta: 888.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 213.91 ms. Allocated memory is still 195.0 MB. Free memory was 155.1 MB in the beginning and 142.4 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 864127.29 ms. Allocated memory was 195.0 MB in the beginning and 846.2 MB in the end (delta: 651.2 MB). Free memory was 141.9 MB in the beginning and 467.2 MB in the end (delta: -325.4 MB). Peak memory consumption was 636.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5753, positive: 3967, positive conditional: 3885, positive unconditional: 82, negative: 1786, negative conditional: 1784, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4333, positive: 3967, positive conditional: 0, positive unconditional: 3967, negative: 366, negative conditional: 0, negative unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 84, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 84, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4333, positive: 3885, positive conditional: 0, positive unconditional: 3885, negative: 364, negative conditional: 0, negative unconditional: 364, unknown: 84, unknown conditional: 0, unknown unconditional: 84] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 1420 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 54, Number of persistent set computation: 18, Number of trivial persistent sets: 13, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5753, positive: 3967, positive conditional: 3885, positive unconditional: 82, negative: 1786, negative conditional: 1784, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4333, positive: 3967, positive conditional: 0, positive unconditional: 3967, negative: 366, negative conditional: 0, negative unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 84, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 84, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4333, positive: 3885, positive conditional: 0, positive unconditional: 3885, negative: 364, negative conditional: 0, negative unconditional: 364, unknown: 84, unknown conditional: 0, unknown unconditional: 84] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 1420 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 232 with TraceHistMax 55,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 24255 for 629168ms.. - TimeoutResultAtElement [Line: 55]: 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 232 with TraceHistMax 55,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 24255 for 629168ms.. - TimeoutResultAtElement [Line: 55]: 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 232 with TraceHistMax 55,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 24255 for 629168ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 28 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 864013.1ms, OverallIterations: 16, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.6ms, PartialOrderReductionTime: 5273.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 293, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 83.8ms SsaConstructionTime, 474.2ms SatisfiabilityAnalysisTime, 132611.3ms InterpolantComputationTime, 1265 NumberOfCodeBlocks, 1265 NumberOfCodeBlocksAsserted, 76 NumberOfCheckSat, 1238 ConstructedInterpolants, 25 QuantifiedInterpolants, 87870 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1592 ConjunctsInSsa, 902 ConjunctsInUnsatCore, 27 InterpolantComputations, 3 PerfectInterpolantSequences, 1717/7329 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