/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-NewStatesSleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-22 18:14:56,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-22 18:14:56,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-22 18:14:56,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-22 18:14:57,004 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-NewStatesSleepPersistent-NoLbe.epf [2021-08-22 18:14:57,033 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-22 18:14:57,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-22 18:14:57,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-22 18:14:57,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-22 18:14:57,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-22 18:14:57,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-22 18:14:57,036 INFO L138 SettingsManager]: * Use SBE=true [2021-08-22 18:14:57,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-22 18:14:57,037 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-22 18:14:57,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-22 18:14:57,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-22 18:14:57,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-22 18:14:57,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-22 18:14:57,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-22 18:14:57,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-22 18:14:57,038 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-22 18:14:57,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-22 18:14:57,038 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-22 18:14:57,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-22 18:14:57,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-22 18:14:57,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-22 18:14:57,039 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-22 18:14:57,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-22 18:14:57,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 18:14:57,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-22 18:14:57,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-22 18:14:57,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-22 18:14:57,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-22 18:14:57,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-22 18:14:57,040 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-22 18:14:57,040 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-22 18:14:57,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-22 18:14:57,040 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-08-22 18:14:57,041 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-08-22 18:14:57,041 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-22 18:14:57,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-22 18:14:57,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-22 18:14:57,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-22 18:14:57,330 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-22 18:14:57,331 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-22 18:14:57,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts.wvr.bpl [2021-08-22 18:14:57,332 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts.wvr.bpl' [2021-08-22 18:14:57,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-22 18:14:57,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-22 18:14:57,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-22 18:14:57,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-22 18:14:57,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-22 18:14:57,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 06:14:57" (1/1) ... [2021-08-22 18:14:57,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 06:14:57" (1/1) ... [2021-08-22 18:14:57,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-22 18:14:57,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-22 18:14:57,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-22 18:14:57,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-22 18:14:57,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 06:14:57" (1/1) ... [2021-08-22 18:14:57,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 06:14:57" (1/1) ... [2021-08-22 18:14:57,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 06:14:57" (1/1) ... [2021-08-22 18:14:57,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 06:14:57" (1/1) ... [2021-08-22 18:14:57,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 06:14:57" (1/1) ... [2021-08-22 18:14:57,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 06:14:57" (1/1) ... [2021-08-22 18:14:57,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 06:14:57" (1/1) ... [2021-08-22 18:14:57,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-22 18:14:57,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-22 18:14:57,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-22 18:14:57,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-22 18:14:57,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 06:14:57" (1/1) ... [2021-08-22 18:14:57,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 18:14:57,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 18:14:57,462 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) [2021-08-22 18:14:57,483 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 [2021-08-22 18:14:57,500 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-22 18:14:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-22 18:14:57,500 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-22 18:14:57,500 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-22 18:14:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-22 18:14:57,500 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-22 18:14:57,501 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-22 18:14:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-22 18:14:57,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-22 18:14:57,502 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-22 18:14:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-22 18:14:57,502 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-22 18:14:57,503 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-22 18:14:57,659 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-22 18:14:57,659 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-22 18:14:57,661 INFO L202 PluginConnector]: Adding new model mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:14:57 BoogieIcfgContainer [2021-08-22 18:14:57,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-22 18:14:57,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-22 18:14:57,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-22 18:14:57,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-22 18:14:57,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 06:14:57" (1/2) ... [2021-08-22 18:14:57,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd0523f and model type mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:14:57, skipping insertion in model container [2021-08-22 18:14:57,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:14:57" (2/2) ... [2021-08-22 18:14:57,666 INFO L111 eAbstractionObserver]: Analyzing ICFG mts.wvr.bpl [2021-08-22 18:14:57,669 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-22 18:14:57,669 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-22 18:14:57,669 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-22 18:14:57,669 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-22 18:14:57,721 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-08-22 18:14:57,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-22 18:14:57,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 18:14:57,781 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) [2021-08-22 18:14:57,782 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 [2021-08-22 18:14:57,802 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-22 18:14:57,807 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 [2021-08-22 18:14:57,807 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-22 18:14:57,924 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 18:14:57,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 18:14:57,931 INFO L82 PathProgramCache]: Analyzing trace with hash 665801877, now seen corresponding path program 1 times [2021-08-22 18:14:57,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 18:14:57,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501908915] [2021-08-22 18:14:57,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 18:14:57,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 18:14:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 18:14:58,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 18:14:58,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 18:14:58,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501908915] [2021-08-22 18:14:58,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501908915] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 18:14:58,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 18:14:58,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-22 18:14:58,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108265505] [2021-08-22 18:14:58,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-22 18:14:58,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 18:14:58,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-22 18:14:58,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-22 18:14:58,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:14:58,158 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 18:14:58,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-08-22 18:14:58,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:14:58,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:14:58,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-22 18:14:58,223 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 18:14:58,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 18:14:58,226 INFO L82 PathProgramCache]: Analyzing trace with hash 593416435, now seen corresponding path program 1 times [2021-08-22 18:14:58,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 18:14:58,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470125356] [2021-08-22 18:14:58,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 18:14:58,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 18:14:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 18:14:58,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 18:14:58,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 18:14:58,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470125356] [2021-08-22 18:14:58,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470125356] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 18:14:58,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 18:14:58,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-22 18:14:58,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374012150] [2021-08-22 18:14:58,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-22 18:14:58,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 18:14:58,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-22 18:14:58,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-22 18:14:58,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:14:58,287 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 18:14:58,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-08-22 18:14:58,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:14:58,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:14:58,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:14:58,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:14:58,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-22 18:14:58,318 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 18:14:58,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 18:14:58,318 INFO L82 PathProgramCache]: Analyzing trace with hash -831996591, now seen corresponding path program 1 times [2021-08-22 18:14:58,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 18:14:58,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697077905] [2021-08-22 18:14:58,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 18:14:58,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 18:14:58,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 18:14:58,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 18:14:58,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 18:14:58,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697077905] [2021-08-22 18:14:58,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697077905] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:14:58,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763748511] [2021-08-22 18:14:58,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 18:14:58,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 18:14:58,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 18:14:58,744 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) [2021-08-22 18:14:58,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-22 18:14:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 18:14:58,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-22 18:14:58,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 18:14:59,306 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-08-22 18:14:59,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 51 [2021-08-22 18:14:59,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 18:14:59,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763748511] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:14:59,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 18:14:59,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-22 18:14:59,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996103202] [2021-08-22 18:14:59,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-22 18:14:59,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 18:14:59,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-22 18:14:59,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-08-22 18:14:59,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:14:59,626 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 18:14:59,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-08-22 18:14:59,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:14:59,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:14:59,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:14:59,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:14:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:14:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:14:59,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-08-22 18:15:00,025 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 [2021-08-22 18:15:00,025 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 18:15:00,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 18:15:00,025 INFO L82 PathProgramCache]: Analyzing trace with hash 858184367, now seen corresponding path program 2 times [2021-08-22 18:15:00,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 18:15:00,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581825124] [2021-08-22 18:15:00,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 18:15:00,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 18:15:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 18:15:00,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 18:15:00,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 18:15:00,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581825124] [2021-08-22 18:15:00,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581825124] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:15:00,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053344912] [2021-08-22 18:15:00,086 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-22 18:15:00,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 18:15:00,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 18:15:00,093 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) [2021-08-22 18:15:00,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-22 18:15:00,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-22 18:15:00,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 18:15:00,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-22 18:15:00,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 18:15:00,347 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 18:15:00,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053344912] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:15:00,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 18:15:00,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-22 18:15:00,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769434738] [2021-08-22 18:15:00,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-22 18:15:00,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 18:15:00,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-22 18:15:00,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-08-22 18:15:00,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:15:00,349 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 18:15:00,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 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) [2021-08-22 18:15:00,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:15:00,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:15:00,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:15:00,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:15:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:15:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:15:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:15:00,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 18:15:00,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-22 18:15:00,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 18:15:00,709 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 18:15:00,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 18:15:00,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1873027571, now seen corresponding path program 1 times [2021-08-22 18:15:00,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 18:15:00,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073894831] [2021-08-22 18:15:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 18:15:00,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 18:15:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 18:15:00,780 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 18:15:00,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 18:15:00,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073894831] [2021-08-22 18:15:00,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073894831] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:15:00,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107608776] [2021-08-22 18:15:00,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 18:15:00,781 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 18:15:00,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 18:15:00,782 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) [2021-08-22 18:15:00,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-22 18:15:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 18:15:00,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-22 18:15:00,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 18:15:01,093 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 18:15:01,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107608776] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:15:01,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 18:15:01,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-08-22 18:15:01,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044199268] [2021-08-22 18:15:01,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-22 18:15:01,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 18:15:01,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-22 18:15:01,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-08-22 18:15:01,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:15:01,097 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 18:15:01,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 18:15:01,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:15:01,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:15:01,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:15:01,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-22 18:15:01,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:15:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:15:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:15:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:15:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 18:15:01,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 18:15:01,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-08-22 18:15:01,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 18:15:01,417 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 18:15:01,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 18:15:01,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1327644881, now seen corresponding path program 2 times [2021-08-22 18:15:01,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 18:15:01,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062484842] [2021-08-22 18:15:01,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 18:15:01,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 18:15:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 18:15:03,223 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 18:15:03,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 18:15:03,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062484842] [2021-08-22 18:15:03,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062484842] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:15:03,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614845396] [2021-08-22 18:15:03,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-22 18:15:03,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 18:15:03,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 18:15:03,224 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) [2021-08-22 18:15:03,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-22 18:15:03,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-22 18:15:03,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 18:15:03,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 38 conjunts are in the unsatisfiable core [2021-08-22 18:15:03,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 18:15:07,391 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-22 18:15:07,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 276 treesize of output 228 [2021-08-22 18:15:15,604 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 18:15:15,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614845396] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:15:15,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 18:15:15,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 23 [2021-08-22 18:15:15,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56243862] [2021-08-22 18:15:15,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-22 18:15:15,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 18:15:15,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-22 18:15:15,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2021-08-22 18:15:15,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:15:15,606 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 18:15:15,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.4347826086956523) 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) [2021-08-22 18:15:15,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:15:15,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:15:15,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:15:15,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-22 18:15:15,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 18:15:15,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:15:19,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:15:19,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:15:19,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:15:19,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 18:15:19,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 18:15:19,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-22 18:15:19,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-08-22 18:15:19,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 18:15:19,249 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 18:15:19,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 18:15:19,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1200889903, now seen corresponding path program 3 times [2021-08-22 18:15:19,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 18:15:19,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144114996] [2021-08-22 18:15:19,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 18:15:19,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 18:15:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 18:15:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 18:15:19,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 18:15:19,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144114996] [2021-08-22 18:15:19,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144114996] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:15:19,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477191593] [2021-08-22 18:15:19,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-22 18:15:19,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 18:15:19,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 18:15:19,364 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) [2021-08-22 18:15:19,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-22 18:15:19,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-08-22 18:15:19,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 18:15:19,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-22 18:15:19,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 18:15:19,899 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 18:15:19,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477191593] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:15:19,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 18:15:19,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-08-22 18:15:19,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480231832] [2021-08-22 18:15:19,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-22 18:15:19,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 18:15:19,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-22 18:15:19,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-08-22 18:15:19,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:15:19,901 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 18:15:19,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 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) [2021-08-22 18:15:19,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:15:19,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:15:19,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:15:19,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-22 18:15:19,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 18:15:19,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-22 18:15:19,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:15:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:15:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:15:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:15:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 18:15:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 18:15:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-22 18:15:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-22 18:15:20,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-22 18:15:20,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 18:15:20,463 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 18:15:20,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 18:15:20,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1492297587, now seen corresponding path program 4 times [2021-08-22 18:15:20,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 18:15:20,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148153620] [2021-08-22 18:15:20,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 18:15:20,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 18:15:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 18:15:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 18:15:20,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 18:15:20,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148153620] [2021-08-22 18:15:20,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148153620] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:15:20,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993153893] [2021-08-22 18:15:20,556 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-22 18:15:20,556 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 18:15:20,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 18:15:20,556 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) [2021-08-22 18:15:20,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-22 18:15:20,877 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-22 18:15:20,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 18:15:20,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-22 18:15:20,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 18:15:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 18:15:21,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993153893] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:15:21,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 18:15:21,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-08-22 18:15:21,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588565411] [2021-08-22 18:15:21,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-22 18:15:21,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 18:15:21,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-22 18:15:21,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-08-22 18:15:21,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:15:21,063 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 18:15:21,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 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) [2021-08-22 18:15:21,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:15:21,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:15:21,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:15:21,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-22 18:15:21,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 18:15:21,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-22 18:15:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-22 18:15:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:15:21,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:15:21,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:15:21,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:15:21,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 18:15:21,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 18:15:21,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-22 18:15:21,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-22 18:15:21,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-22 18:15:21,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-22 18:15:21,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 18:15:21,413 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 18:15:21,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 18:15:21,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1925908561, now seen corresponding path program 5 times [2021-08-22 18:15:21,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 18:15:21,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915996601] [2021-08-22 18:15:21,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 18:15:21,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 18:15:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 18:15:36,930 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 18:15:36,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 18:15:36,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915996601] [2021-08-22 18:15:36,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915996601] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:15:36,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516166015] [2021-08-22 18:15:36,931 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-22 18:15:36,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 18:15:36,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 18:15:36,932 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) [2021-08-22 18:15:36,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-22 18:15:37,516 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-22 18:15:37,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 18:15:37,517 WARN L261 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 54 conjunts are in the unsatisfiable core [2021-08-22 18:15:37,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 18:16:09,995 INFO L354 Elim1Store]: treesize reduction 70, result has 4.1 percent of original size [2021-08-22 18:16:09,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 1172 treesize of output 743 [2021-08-22 18:16:10,836 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 18:16:10,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516166015] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:16:10,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 18:16:10,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-08-22 18:16:10,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566375887] [2021-08-22 18:16:10,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-08-22 18:16:10,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 18:16:10,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-08-22 18:16:10,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=897, Unknown=0, NotChecked=0, Total=992 [2021-08-22 18:16:10,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:16:10,837 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 18:16:10,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.3125) internal successors, (74), 32 states have internal predecessors, (74), 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) [2021-08-22 18:16:10,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:16:10,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:16:10,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:16:10,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-22 18:16:10,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 18:16:10,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-22 18:16:10,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-22 18:16:10,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-22 18:16:10,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:16:16,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:16:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:16:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:16:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 18:16:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 18:16:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-22 18:16:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-22 18:16:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-22 18:16:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-22 18:16:16,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-22 18:16:16,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-08-22 18:16:16,969 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 18:16:16,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 18:16:16,969 INFO L82 PathProgramCache]: Analyzing trace with hash 839263467, now seen corresponding path program 6 times [2021-08-22 18:16:16,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 18:16:16,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092027335] [2021-08-22 18:16:16,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 18:16:16,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 18:16:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 18:16:17,107 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 18:16:17,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 18:16:17,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092027335] [2021-08-22 18:16:17,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092027335] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:16:17,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912469794] [2021-08-22 18:16:17,108 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-22 18:16:17,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 18:16:17,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 18:16:17,109 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) [2021-08-22 18:16:17,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-22 18:16:18,279 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-08-22 18:16:18,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 18:16:18,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-22 18:16:18,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 18:16:18,608 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 18:16:18,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912469794] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 18:16:18,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 18:16:18,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-08-22 18:16:18,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979886185] [2021-08-22 18:16:18,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-08-22 18:16:18,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 18:16:18,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-08-22 18:16:18,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-08-22 18:16:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:16:18,610 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 18:16:18,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.3793103448275863) internal successors, (69), 29 states have internal predecessors, (69), 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) [2021-08-22 18:16:18,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-22 18:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 18:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-22 18:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-22 18:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-22 18:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-22 18:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 18:16:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 18:16:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 18:16:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 18:16:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 18:16:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 18:16:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-22 18:16:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-22 18:16:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-22 18:16:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-22 18:16:18,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-22 18:16:18,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-22 18:16:19,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-08-22 18:16:19,057 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 18:16:19,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 18:16:19,058 INFO L82 PathProgramCache]: Analyzing trace with hash 819382217, now seen corresponding path program 7 times [2021-08-22 18:16:19,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 18:16:19,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648524637] [2021-08-22 18:16:19,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 18:16:19,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 18:16:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2021-08-22 18:29:30,230 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-22 18:29:30,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-22 18:29:30,230 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 47 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-3-3-13-4-12-6-13-6-12-6-13-6-12-6-13-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-10-6-10-6-10-6-10-6-10-6-10-6-9-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-4-6-4-3-4-2-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. [2021-08-22 18:29:30,231 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-22 18:29:30,231 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-22 18:29:30,231 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-22 18:29:30,236 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-22 18:29:30,237 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-22 18:29:30,238 INFO L202 PluginConnector]: Adding new model mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:29:30 BasicIcfg [2021-08-22 18:29:30,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-22 18:29:30,238 INFO L168 Benchmark]: Toolchain (without parser) took 872872.37 ms. Allocated memory was 199.2 MB in the beginning and 1.1 GB in the end (delta: 910.2 MB). Free memory was 178.4 MB in the beginning and 961.8 MB in the end (delta: -783.3 MB). Peak memory consumption was 711.2 MB. Max. memory is 8.0 GB. [2021-08-22 18:29:30,239 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 199.2 MB. Free memory is still 179.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-22 18:29:30,239 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.99 ms. Allocated memory is still 199.2 MB. Free memory was 178.4 MB in the beginning and 176.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-22 18:29:30,239 INFO L168 Benchmark]: Boogie Preprocessor took 34.62 ms. Allocated memory is still 199.2 MB. Free memory was 176.9 MB in the beginning and 175.9 MB in the end (delta: 913.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-22 18:29:30,239 INFO L168 Benchmark]: RCFGBuilder took 230.94 ms. Allocated memory is still 199.2 MB. Free memory was 175.7 MB in the beginning and 161.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-22 18:29:30,239 INFO L168 Benchmark]: TraceAbstraction took 872575.70 ms. Allocated memory was 199.2 MB in the beginning and 1.1 GB in the end (delta: 910.2 MB). Free memory was 160.6 MB in the beginning and 961.8 MB in the end (delta: -801.2 MB). Peak memory consumption was 693.4 MB. Max. memory is 8.0 GB. [2021-08-22 18:29:30,240 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 0.13 ms. Allocated memory is still 199.2 MB. Free memory is still 179.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.99 ms. Allocated memory is still 199.2 MB. Free memory was 178.4 MB in the beginning and 176.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.62 ms. Allocated memory is still 199.2 MB. Free memory was 176.9 MB in the beginning and 175.9 MB in the end (delta: 913.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 230.94 ms. Allocated memory is still 199.2 MB. Free memory was 175.7 MB in the beginning and 161.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 872575.70 ms. Allocated memory was 199.2 MB in the beginning and 1.1 GB in the end (delta: 910.2 MB). Free memory was 160.6 MB in the beginning and 961.8 MB in the end (delta: -801.2 MB). Peak memory consumption was 693.4 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: 2354, positive: 1968, positive conditional: 1727, positive unconditional: 241, negative: 386, negative conditional: 386, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1968, positive: 1968, positive conditional: 1727, positive unconditional: 241, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1968, positive: 1968, positive conditional: 1727, positive unconditional: 241, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1968, positive: 1968, positive conditional: 1668, positive unconditional: 300, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1968, positive: 1968, positive conditional: 1504, positive unconditional: 464, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1968, positive: 1968, positive conditional: 1504, positive unconditional: 464, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 229, positive: 229, positive conditional: 0, positive unconditional: 229, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 229, positive: 229, positive conditional: 0, positive unconditional: 229, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1968, positive: 1739, positive conditional: 1504, positive unconditional: 235, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 229, unknown conditional: 0, unknown unconditional: 229] , Statistics on independence cache: Total cache size (in pairs): 229, Positive cache size: 229, Positive conditional cache size: 0, Positive unconditional cache size: 229, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 164, Maximal queried relation: 0, Independence queries for same thread: 386 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 39, Number of persistent set computation: 21, Number of trivial persistent sets: 9, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 241, positive: 241, positive conditional: 0, positive unconditional: 241, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2354, positive: 1968, positive conditional: 1727, positive unconditional: 241, negative: 386, negative conditional: 386, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1968, positive: 1968, positive conditional: 1727, positive unconditional: 241, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1968, positive: 1968, positive conditional: 1727, positive unconditional: 241, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1968, positive: 1968, positive conditional: 1668, positive unconditional: 300, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1968, positive: 1968, positive conditional: 1504, positive unconditional: 464, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1968, positive: 1968, positive conditional: 1504, positive unconditional: 464, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 229, positive: 229, positive conditional: 0, positive unconditional: 229, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 229, positive: 229, positive conditional: 0, positive unconditional: 229, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1968, positive: 1739, positive conditional: 1504, positive unconditional: 235, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 229, unknown conditional: 0, unknown unconditional: 229] , Statistics on independence cache: Total cache size (in pairs): 229, Positive cache size: 229, Positive conditional cache size: 0, Positive unconditional cache size: 229, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 164, Maximal queried relation: 0, Independence queries for same thread: 386 - 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: 68]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 47 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-3-3-13-4-12-6-13-6-12-6-13-6-12-6-13-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-10-6-10-6-10-6-10-6-10-6-10-6-9-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-4-6-4-3-4-2-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 61]: 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 47 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-3-3-13-4-12-6-13-6-12-6-13-6-12-6-13-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-10-6-10-6-10-6-10-6-10-6-10-6-9-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-4-6-4-3-4-2-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 61]: 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 47 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-3-3-13-4-12-6-13-6-12-6-13-6-12-6-13-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-10-6-10-6-10-6-10-6-10-6-10-6-9-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-4-6-4-3-4-2-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 62]: 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 47 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-3-3-13-4-12-6-13-6-12-6-13-6-12-6-13-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-10-6-10-6-10-6-10-6-10-6-10-6-9-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-5-6-4-6-4-3-4-2-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 872476.6ms, OverallIterations: 11, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.5ms, PartialOrderReductionTime: 10741.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 149, 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: 58.2ms SsaConstructionTime, 363.6ms SatisfiabilityAnalysisTime, 65516.7ms InterpolantComputationTime, 546 NumberOfCodeBlocks, 546 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 528 ConstructedInterpolants, 20 QuantifiedInterpolants, 29575 SizeOfPredicates, 38 NumberOfNonLiveVariables, 695 ConjunctsInSsa, 167 ConjunctsInUnsatCore, 18 InterpolantComputations, 2 PerfectInterpolantSequences, 101/375 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