/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/send-receive-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 11:12:11,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 11:12:11,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 11:12:11,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-22 11:12:11,484 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe.epf [2021-10-22 11:12:11,501 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 11:12:11,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 11:12:11,501 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 11:12:11,501 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 11:12:11,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 11:12:11,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 11:12:11,502 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 11:12:11,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 11:12:11,502 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 11:12:11,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 11:12:11,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 11:12:11,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 11:12:11,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 11:12:11,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 11:12:11,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 11:12:11,503 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 11:12:11,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 11:12:11,503 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 11:12:11,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 11:12:11,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 11:12:11,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 11:12:11,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 11:12:11,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 11:12:11,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 11:12:11,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 11:12:11,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 11:12:11,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 11:12:11,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 11:12:11,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 11:12:11,504 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 11:12:11,504 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 11:12:11,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 11:12:11,504 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 11:12:11,505 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 11:12:11,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 11:12:11,505 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 11:12:11,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 11:12:11,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 11:12:11,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 11:12:11,686 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 11:12:11,688 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 11:12:11,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/send-receive-alt.wvr.bpl [2021-10-22 11:12:11,689 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/send-receive-alt.wvr.bpl' [2021-10-22 11:12:11,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 11:12:11,715 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 11:12:11,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 11:12:11,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 11:12:11,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 11:12:11,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:12:11" (1/1) ... [2021-10-22 11:12:11,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:12:11" (1/1) ... [2021-10-22 11:12:11,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 11:12:11,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 11:12:11,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 11:12:11,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 11:12:11,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:12:11" (1/1) ... [2021-10-22 11:12:11,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:12:11" (1/1) ... [2021-10-22 11:12:11,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:12:11" (1/1) ... [2021-10-22 11:12:11,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:12:11" (1/1) ... [2021-10-22 11:12:11,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:12:11" (1/1) ... [2021-10-22 11:12:11,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:12:11" (1/1) ... [2021-10-22 11:12:11,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:12:11" (1/1) ... [2021-10-22 11:12:11,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 11:12:11,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 11:12:11,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 11:12:11,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 11:12:11,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:12:11" (1/1) ... [2021-10-22 11:12:11,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 11:12:11,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:12:11,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-22 11:12:11,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-22 11:12:11,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-22 11:12:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 11:12:11,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 11:12:11,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-22 11:12:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-22 11:12:11,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-22 11:12:11,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 11:12:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 11:12:11,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 11:12:11,804 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-22 11:12:11,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 11:12:11,907 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-10-22 11:12:11,907 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-10-22 11:12:11,908 INFO L202 PluginConnector]: Adding new model send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:12:11 BoogieIcfgContainer [2021-10-22 11:12:11,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 11:12:11,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 11:12:11,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 11:12:11,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 11:12:11,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:12:11" (1/2) ... [2021-10-22 11:12:11,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f97d54 and model type send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:12:11, skipping insertion in model container [2021-10-22 11:12:11,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:12:11" (2/2) ... [2021-10-22 11:12:11,914 INFO L111 eAbstractionObserver]: Analyzing ICFG send-receive-alt.wvr.bpl [2021-10-22 11:12:11,917 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 11:12:11,917 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 11:12:11,917 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 11:12:11,917 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 11:12:11,950 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-22 11:12:11,998 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 11:12:11,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:12:12,001 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-22 11:12:12,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-22 11:12:12,028 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 11:12:12,032 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 11:12:12,032 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-22 11:12:12,113 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:12,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:12,117 INFO L82 PathProgramCache]: Analyzing trace with hash -612514274, now seen corresponding path program 1 times [2021-10-22 11:12:12,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:12,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523810054] [2021-10-22 11:12:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:12,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:12,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:12,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:12,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523810054] [2021-10-22 11:12:12,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523810054] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 11:12:12,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 11:12:12,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-22 11:12:12,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622651785] [2021-10-22 11:12:12,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 11:12:12,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:12:12,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 11:12:12,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 11:12:12,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:12,245 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:12:12,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:12:12,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:12,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:12,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 11:12:12,259 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:12,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:12,260 INFO L82 PathProgramCache]: Analyzing trace with hash -987070873, now seen corresponding path program 1 times [2021-10-22 11:12:12,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:12,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711721436] [2021-10-22 11:12:12,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:12,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:12,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:12,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711721436] [2021-10-22 11:12:12,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711721436] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 11:12:12,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 11:12:12,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-22 11:12:12,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996942162] [2021-10-22 11:12:12,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 11:12:12,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:12:12,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 11:12:12,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 11:12:12,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:12,283 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:12:12,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:12:12,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:12,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:12,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:12,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:12,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-22 11:12:12,297 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:12,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:12,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1304321976, now seen corresponding path program 1 times [2021-10-22 11:12:12,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:12,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048329573] [2021-10-22 11:12:12,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:12,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:12,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:12,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048329573] [2021-10-22 11:12:12,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048329573] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:12,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666747368] [2021-10-22 11:12:12,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:12,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:12,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:12:12,397 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:12:12,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-22 11:12:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:12,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-22 11:12:12,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:12:12,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-10-22 11:12:12,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:12,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666747368] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:12,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:12:12,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-22 11:12:12,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879788168] [2021-10-22 11:12:12,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-22 11:12:12,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:12:12,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-22 11:12:12,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-22 11:12:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:12,715 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:12:12,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:12:12,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:12,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:12,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:12,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:12,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:12,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:12,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-22 11:12:12,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-22 11:12:12,978 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:12,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:12,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1738430269, now seen corresponding path program 2 times [2021-10-22 11:12:12,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:12,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103129056] [2021-10-22 11:12:12,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:12,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:13,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:13,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103129056] [2021-10-22 11:12:13,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103129056] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 11:12:13,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 11:12:13,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 11:12:13,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004091750] [2021-10-22 11:12:13,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-22 11:12:13,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:12:13,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-22 11:12:13,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-22 11:12:13,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:13,031 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:12:13,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:12:13,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:13,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:13,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:13,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:13,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:13,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:13,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:13,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:13,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-22 11:12:13,046 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:13,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:13,046 INFO L82 PathProgramCache]: Analyzing trace with hash 2026072000, now seen corresponding path program 3 times [2021-10-22 11:12:13,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:13,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841255778] [2021-10-22 11:12:13,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:13,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:13,083 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 11:12:13,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:13,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841255778] [2021-10-22 11:12:13,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841255778] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:13,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787952811] [2021-10-22 11:12:13,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 11:12:13,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:13,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:12:13,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:12:13,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-22 11:12:13,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-22 11:12:13,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:12:13,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-22 11:12:13,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:12:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 11:12:13,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787952811] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:13,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:12:13,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-22 11:12:13,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84820515] [2021-10-22 11:12:13,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 11:12:13,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:12:13,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 11:12:13,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 11:12:13,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:13,196 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:12:13,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:12:13,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:13,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:13,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:13,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:13,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:13,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:13,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-22 11:12:13,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:13,435 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:13,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:13,436 INFO L82 PathProgramCache]: Analyzing trace with hash 22104032, now seen corresponding path program 1 times [2021-10-22 11:12:13,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:13,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856014917] [2021-10-22 11:12:13,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:13,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:13,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:13,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856014917] [2021-10-22 11:12:13,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856014917] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:13,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830300166] [2021-10-22 11:12:13,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:13,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:13,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:12:13,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:12:13,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-22 11:12:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:13,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-22 11:12:13,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:12:13,886 INFO L354 Elim1Store]: treesize reduction 26, result has 10.3 percent of original size [2021-10-22 11:12:13,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 28 [2021-10-22 11:12:13,931 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:13,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830300166] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:13,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:12:13,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-10-22 11:12:13,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352918658] [2021-10-22 11:12:13,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-22 11:12:13,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:12:13,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-22 11:12:13,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-22 11:12:13,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:13,933 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:12:13,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:12:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:13,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:13,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:13,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:13,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:13,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:13,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:13,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:14,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-22 11:12:14,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:14,185 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:14,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:14,185 INFO L82 PathProgramCache]: Analyzing trace with hash -623510552, now seen corresponding path program 2 times [2021-10-22 11:12:14,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:14,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366644207] [2021-10-22 11:12:14,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:14,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:14,392 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:14,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:14,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366644207] [2021-10-22 11:12:14,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366644207] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:14,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211483016] [2021-10-22 11:12:14,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 11:12:14,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:14,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:12:14,395 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:12:14,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-22 11:12:14,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 11:12:14,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:12:14,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-22 11:12:14,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:12:14,810 INFO L354 Elim1Store]: treesize reduction 98, result has 6.7 percent of original size [2021-10-22 11:12:14,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 36 [2021-10-22 11:12:14,845 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:14,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211483016] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:14,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:12:14,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-10-22 11:12:14,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126755424] [2021-10-22 11:12:14,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-22 11:12:14,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:12:14,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-22 11:12:14,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-10-22 11:12:14,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:14,847 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:12:14,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:12:14,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:14,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:14,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:14,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:14,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:14,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:14,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:14,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:14,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:14,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:14,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:12:14,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-10-22 11:12:15,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:15,155 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:15,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:15,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1773576048, now seen corresponding path program 3 times [2021-10-22 11:12:15,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:15,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749954291] [2021-10-22 11:12:15,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:15,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:15,452 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 59 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 11:12:15,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:15,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749954291] [2021-10-22 11:12:15,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749954291] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:15,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848806956] [2021-10-22 11:12:15,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 11:12:15,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:15,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:12:15,453 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:12:15,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-22 11:12:15,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-22 11:12:15,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:12:15,574 WARN L261 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-22 11:12:15,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:12:16,591 INFO L354 Elim1Store]: treesize reduction 605, result has 2.6 percent of original size [2021-10-22 11:12:16,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 115 treesize of output 64 [2021-10-22 11:12:16,650 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:16,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848806956] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:16,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:12:16,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 23 [2021-10-22 11:12:16,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219665650] [2021-10-22 11:12:16,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-22 11:12:16,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:12:16,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-22 11:12:16,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2021-10-22 11:12:16,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:16,652 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:12:16,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 23 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:12:16,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:16,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:16,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:16,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:16,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:16,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:16,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:12:16,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:16,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:16,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:12:16,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:12:16,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-22 11:12:17,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:17,012 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:17,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:17,012 INFO L82 PathProgramCache]: Analyzing trace with hash -894562683, now seen corresponding path program 4 times [2021-10-22 11:12:17,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:17,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393307234] [2021-10-22 11:12:17,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:17,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:17,062 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 25 proven. 21 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-22 11:12:17,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:17,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393307234] [2021-10-22 11:12:17,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393307234] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:17,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581203368] [2021-10-22 11:12:17,063 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 11:12:17,063 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:17,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:12:17,064 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:12:17,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-22 11:12:17,228 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 11:12:17,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:12:17,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-22 11:12:17,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:12:17,316 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 25 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-22 11:12:17,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581203368] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:17,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:12:17,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2021-10-22 11:12:17,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039529787] [2021-10-22 11:12:17,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-22 11:12:17,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:12:17,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-22 11:12:17,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-22 11:12:17,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:17,318 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:12:17,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:12:17,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:17,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:17,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:17,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:17,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:17,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:17,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:12:17,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:12:17,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:17,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:12:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:12:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 11:12:17,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-22 11:12:17,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:17,547 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:17,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:17,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1520765816, now seen corresponding path program 5 times [2021-10-22 11:12:17,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:17,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148014972] [2021-10-22 11:12:17,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:17,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:17,933 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 5 proven. 80 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 11:12:17,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:17,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148014972] [2021-10-22 11:12:17,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148014972] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:17,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792105478] [2021-10-22 11:12:17,934 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 11:12:17,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:17,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:12:17,936 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:12:17,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-22 11:12:18,118 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-10-22 11:12:18,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:12:18,119 WARN L261 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 58 conjunts are in the unsatisfiable core [2021-10-22 11:12:18,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:12:19,439 INFO L354 Elim1Store]: treesize reduction 870, result has 2.1 percent of original size [2021-10-22 11:12:19,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 132 treesize of output 72 [2021-10-22 11:12:19,476 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 22 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:19,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792105478] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:19,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:12:19,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 27 [2021-10-22 11:12:19,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724039390] [2021-10-22 11:12:19,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-22 11:12:19,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:12:19,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-22 11:12:19,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2021-10-22 11:12:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:19,478 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:12:19,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.2857142857142856) internal successors, (64), 27 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:12:19,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:19,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:19,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:19,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:19,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:19,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:19,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:12:19,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:12:19,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 11:12:19,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:12:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:12:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 11:12:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-22 11:12:19,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-22 11:12:19,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-22 11:12:19,982 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:19,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:19,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1261095213, now seen corresponding path program 6 times [2021-10-22 11:12:19,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:19,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015351701] [2021-10-22 11:12:19,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:19,983 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:20,622 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 7 proven. 238 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-22 11:12:20,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:20,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015351701] [2021-10-22 11:12:20,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015351701] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:20,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802314500] [2021-10-22 11:12:20,626 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 11:12:20,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:20,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:12:20,627 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:12:20,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-22 11:12:20,913 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-10-22 11:12:20,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:12:20,915 WARN L261 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 99 conjunts are in the unsatisfiable core [2021-10-22 11:12:20,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:12:25,727 INFO L354 Elim1Store]: treesize reduction 2959, result has 1.1 percent of original size [2021-10-22 11:12:25,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 23 select indices, 23 select index equivalence classes, 0 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 253 case distinctions, treesize of input 229 treesize of output 122 [2021-10-22 11:12:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 72 proven. 211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:25,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802314500] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:25,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:12:25,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 27] total 37 [2021-10-22 11:12:25,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71353319] [2021-10-22 11:12:25,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-22 11:12:25,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:12:25,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-22 11:12:25,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1209, Unknown=0, NotChecked=0, Total=1406 [2021-10-22 11:12:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:25,764 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:12:25,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.3421052631578947) internal successors, (89), 37 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:12:25,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:25,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:25,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:25,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:25,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:25,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:25,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:12:25,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:12:25,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 11:12:25,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-10-22 11:12:25,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:26,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:26,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:26,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:26,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:26,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:26,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:26,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:12:26,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:12:26,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 11:12:26,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-22 11:12:26,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-22 11:12:26,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-22 11:12:26,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:26,431 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:26,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:26,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1188030936, now seen corresponding path program 7 times [2021-10-22 11:12:26,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:26,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335901929] [2021-10-22 11:12:26,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:26,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:26,926 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 7 proven. 249 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-22 11:12:26,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:26,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335901929] [2021-10-22 11:12:26,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335901929] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:26,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789024029] [2021-10-22 11:12:26,927 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-22 11:12:26,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:26,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:12:26,928 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:12:26,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-22 11:12:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:27,390 WARN L261 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 105 conjunts are in the unsatisfiable core [2021-10-22 11:12:27,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:12:32,944 INFO L354 Elim1Store]: treesize reduction 3468, result has 1.1 percent of original size [2021-10-22 11:12:32,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 25 select indices, 25 select index equivalence classes, 0 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 300 case distinctions, treesize of input 240 treesize of output 126 [2021-10-22 11:12:32,977 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 74 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:32,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789024029] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:32,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:12:32,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 29] total 39 [2021-10-22 11:12:32,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125557824] [2021-10-22 11:12:32,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-22 11:12:32,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:12:32,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-22 11:12:32,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1353, Unknown=0, NotChecked=0, Total=1560 [2021-10-22 11:12:32,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:32,979 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:12:32,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.225) internal successors, (89), 39 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:12:32,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:32,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:32,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:32,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:32,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:32,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:32,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:12:32,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:12:32,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 11:12:32,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-10-22 11:12:32,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-22 11:12:32,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:33,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:12:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:12:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 11:12:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-22 11:12:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-22 11:12:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:12:33,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-22 11:12:33,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-22 11:12:33,472 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:33,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:33,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1538211328, now seen corresponding path program 8 times [2021-10-22 11:12:33,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:33,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86999631] [2021-10-22 11:12:33,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:33,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:33,979 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 8 proven. 293 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-22 11:12:33,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:33,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86999631] [2021-10-22 11:12:33,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86999631] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:33,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922120699] [2021-10-22 11:12:33,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 11:12:33,980 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:33,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:12:33,980 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:12:33,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-22 11:12:34,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 11:12:34,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:12:34,653 WARN L261 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 113 conjunts are in the unsatisfiable core [2021-10-22 11:12:34,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:12:41,568 INFO L354 Elim1Store]: treesize reduction 4069, result has 1.0 percent of original size [2021-10-22 11:12:41,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 0 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 351 case distinctions, treesize of input 259 treesize of output 136 [2021-10-22 11:12:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 86 proven. 257 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:12:41,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922120699] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:41,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:12:41,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 31] total 42 [2021-10-22 11:12:41,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354409989] [2021-10-22 11:12:41,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-10-22 11:12:41,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:12:41,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-10-22 11:12:41,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=1558, Unknown=0, NotChecked=0, Total=1806 [2021-10-22 11:12:41,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:41,605 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:12:41,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.255813953488372) internal successors, (97), 42 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:12:41,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:41,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:41,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:41,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:41,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:41,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:41,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:12:41,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:12:41,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 11:12:41,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-10-22 11:12:41,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-22 11:12:41,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:12:41,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:12:42,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:12:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:12:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:12:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:12:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:12:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:12:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 11:12:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-22 11:12:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-22 11:12:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:12:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 11:12:42,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-22 11:12:42,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-22 11:12:42,290 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:12:42,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:12:42,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1106150952, now seen corresponding path program 9 times [2021-10-22 11:12:42,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:12:42,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858943350] [2021-10-22 11:12:42,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:12:42,290 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:12:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:12:43,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 5 proven. 877 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-10-22 11:12:43,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:12:43,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858943350] [2021-10-22 11:12:43,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858943350] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:12:43,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682531057] [2021-10-22 11:12:43,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 11:12:43,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:12:43,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:12:43,037 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:12:43,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-22 11:12:43,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-10-22 11:12:43,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:12:43,987 WARN L261 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 185 conjunts are in the unsatisfiable core [2021-10-22 11:12:43,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:13:19,945 WARN L207 SmtUtils]: Spent 25.14 s on a formula simplification. DAG size of input: 4073 DAG size of output: 67 [2021-10-22 11:13:19,955 INFO L354 Elim1Store]: treesize reduction 11638, result has 0.6 percent of original size [2021-10-22 11:13:19,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 45 select indices, 45 select index equivalence classes, 0 disjoint index pairs (out of 990 index pairs), introduced 45 new quantified variables, introduced 990 case distinctions, treesize of input 420 treesize of output 216 [2021-10-22 11:13:20,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 274 proven. 769 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-22 11:13:20,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682531057] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:13:20,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:13:20,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 49] total 60 [2021-10-22 11:13:20,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687780875] [2021-10-22 11:13:20,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-10-22 11:13:20,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:13:20,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-10-22 11:13:20,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=3191, Unknown=0, NotChecked=0, Total=3660 [2021-10-22 11:13:20,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:13:20,002 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:13:20,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 2.3442622950819674) internal successors, (143), 60 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:13:20,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:13:20,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:13:20,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:13:20,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:13:20,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:13:20,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:13:20,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:13:20,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:13:20,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 11:13:20,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-10-22 11:13:20,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-22 11:13:20,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:13:20,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 11:13:20,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:13:21,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:13:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:13:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:13:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:13:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:13:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:13:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:13:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:13:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 11:13:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-22 11:13:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-22 11:13:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:13:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 11:13:21,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-22 11:13:21,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-22 11:13:21,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-22 11:13:21,332 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:13:21,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:13:21,333 INFO L82 PathProgramCache]: Analyzing trace with hash 959090701, now seen corresponding path program 10 times [2021-10-22 11:13:21,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:13:21,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654909089] [2021-10-22 11:13:21,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:13:21,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:13:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:13:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 31 proven. 1121 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-10-22 11:13:22,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:13:22,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654909089] [2021-10-22 11:13:22,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654909089] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:13:22,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852161607] [2021-10-22 11:13:22,294 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 11:13:22,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:13:22,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:13:22,295 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:13:22,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-22 11:13:23,802 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 11:13:23,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:13:23,806 WARN L261 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 225 conjunts are in the unsatisfiable core [2021-10-22 11:13:23,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:14:34,478 WARN L207 SmtUtils]: Spent 54.91 s on a formula simplification. DAG size of input: 6078 DAG size of output: 82 [2021-10-22 11:14:34,479 INFO L354 Elim1Store]: treesize reduction 17523, result has 0.5 percent of original size [2021-10-22 11:14:34,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 55 select indices, 55 select index equivalence classes, 0 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 1485 case distinctions, treesize of input 511 treesize of output 262 [2021-10-22 11:14:34,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 408 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:14:34,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852161607] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:14:34,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:14:34,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 59] total 72 [2021-10-22 11:14:34,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608823591] [2021-10-22 11:14:34,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-10-22 11:14:34,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:14:34,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-10-22 11:14:34,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=609, Invalid=4647, Unknown=0, NotChecked=0, Total=5256 [2021-10-22 11:14:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:14:34,523 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:14:34,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 2.232876712328767) internal successors, (163), 72 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-10-22 11:14:34,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:14:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:14:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:14:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:14:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:14:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:14:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:14:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:14:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:14:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 11:14:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-22 11:14:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-22 11:14:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:14:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 11:14:36,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-10-22 11:14:36,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-10-22 11:14:36,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-22 11:14:37,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-22 11:14:37,095 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 11:14:37,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:14:37,096 INFO L82 PathProgramCache]: Analyzing trace with hash -740289384, now seen corresponding path program 11 times [2021-10-22 11:14:37,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:14:37,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404065857] [2021-10-22 11:14:37,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:14:37,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:14:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:14:38,769 INFO L134 CoverageAnalysis]: Checked inductivity of 5294 backedges. 1 proven. 3818 refuted. 0 times theorem prover too weak. 1475 trivial. 0 not checked. [2021-10-22 11:14:38,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:14:38,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404065857] [2021-10-22 11:14:38,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404065857] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:14:38,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354082193] [2021-10-22 11:14:38,769 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 11:14:38,769 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:14:38,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:14:38,770 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:14:38,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-22 11:14:41,274 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 46 check-sat command(s) [2021-10-22 11:14:41,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:14:41,281 WARN L261 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 444 conjunts are in the unsatisfiable core [2021-10-22 11:14:41,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-10-22 11:24:14,853 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 11:24:14,854 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 11:24:14,854 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 11:24:14,911 WARN L223 SmtUtils]: Removed 1539 from assertion stack [2021-10-22 11:24:14,916 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-22 11:24:14,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-22 11:24:15,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:24:15,139 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 232 with TraceHistMax 55,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 24255 for 495933ms.. [2021-10-22 11:24:15,141 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 11:24:15,141 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-22 11:24:15,155 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 11:24:15,155 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 11:24:15,156 INFO L202 PluginConnector]: Adding new model send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:24:15 BasicIcfg [2021-10-22 11:24:15,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 11:24:15,157 INFO L168 Benchmark]: Toolchain (without parser) took 723442.04 ms. Allocated memory was 204.5 MB in the beginning and 868.2 MB in the end (delta: 663.7 MB). Free memory was 169.3 MB in the beginning and 396.7 MB in the end (delta: -227.5 MB). Peak memory consumption was 666.5 MB. Max. memory is 8.0 GB. [2021-10-22 11:24:15,157 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.08 ms. Allocated memory is still 204.5 MB. Free memory is still 170.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 11:24:15,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.71 ms. Allocated memory is still 204.5 MB. Free memory was 169.1 MB in the beginning and 167.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 11:24:15,157 INFO L168 Benchmark]: Boogie Preprocessor took 9.47 ms. Allocated memory is still 204.5 MB. Free memory was 167.7 MB in the beginning and 166.7 MB in the end (delta: 996.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 11:24:15,157 INFO L168 Benchmark]: RCFGBuilder took 164.84 ms. Allocated memory is still 204.5 MB. Free memory was 166.7 MB in the beginning and 154.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-22 11:24:15,158 INFO L168 Benchmark]: TraceAbstraction took 723246.78 ms. Allocated memory was 204.5 MB in the beginning and 868.2 MB in the end (delta: 663.7 MB). Free memory was 154.2 MB in the beginning and 396.7 MB in the end (delta: -242.6 MB). Peak memory consumption was 650.8 MB. Max. memory is 8.0 GB. [2021-10-22 11:24:15,158 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 0.08 ms. Allocated memory is still 204.5 MB. Free memory is still 170.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 16.71 ms. Allocated memory is still 204.5 MB. Free memory was 169.1 MB in the beginning and 167.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.47 ms. Allocated memory is still 204.5 MB. Free memory was 167.7 MB in the beginning and 166.7 MB in the end (delta: 996.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 164.84 ms. Allocated memory is still 204.5 MB. Free memory was 166.7 MB in the beginning and 154.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 723246.78 ms. Allocated memory was 204.5 MB in the beginning and 868.2 MB in the end (delta: 663.7 MB). Free memory was 154.2 MB in the beginning and 396.7 MB in the end (delta: -242.6 MB). Peak memory consumption was 650.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5753, positive: 3967, positive conditional: 3885, positive unconditional: 82, negative: 1786, negative conditional: 1784, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4333, positive: 3967, positive conditional: 0, positive unconditional: 3967, negative: 366, negative conditional: 0, negative unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 84, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 84, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4333, positive: 3885, positive conditional: 0, positive unconditional: 3885, negative: 364, negative conditional: 0, negative unconditional: 364, unknown: 84, unknown conditional: 0, unknown unconditional: 84] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 1420 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 61, Number of persistent set computation: 18, Number of trivial persistent sets: 13, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5753, positive: 3967, positive conditional: 3885, positive unconditional: 82, negative: 1786, negative conditional: 1784, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4333, positive: 3967, positive conditional: 0, positive unconditional: 3967, negative: 366, negative conditional: 0, negative unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 84, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 84, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4333, positive: 3885, positive conditional: 0, positive unconditional: 3885, negative: 364, negative conditional: 0, negative unconditional: 364, unknown: 84, unknown conditional: 0, unknown unconditional: 84] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 1420 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 232 with TraceHistMax 55,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 24255 for 495933ms.. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 232 with TraceHistMax 55,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 24255 for 495933ms.. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 232 with TraceHistMax 55,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 24255 for 495933ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 28 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 723164.8ms, OverallIterations: 16, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 5494.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 293, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 69.3ms SsaConstructionTime, 506.8ms SatisfiabilityAnalysisTime, 131994.7ms InterpolantComputationTime, 1265 NumberOfCodeBlocks, 1265 NumberOfCodeBlocksAsserted, 76 NumberOfCheckSat, 1238 ConstructedInterpolants, 25 QuantifiedInterpolants, 87870 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1592 ConjunctsInSsa, 902 ConjunctsInUnsatCore, 27 InterpolantComputations, 3 PerfectInterpolantSequences, 1717/7329 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown