/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/parallel/misc-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 10:51:16,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 10:51:16,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 10:51:16,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-22 10:51:16,766 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 10:51:16,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 10:51:16,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 10:51:16,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 10:51:16,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 10:51:16,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 10:51:16,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 10:51:16,795 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 10:51:16,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 10:51:16,795 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 10:51:16,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 10:51:16,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 10:51:16,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 10:51:16,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 10:51:16,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 10:51:16,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 10:51:16,797 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 10:51:16,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 10:51:16,797 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 10:51:16,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 10:51:16,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 10:51:16,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 10:51:16,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 10:51:16,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 10:51:16,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 10:51:16,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 10:51:16,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 10:51:16,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 10:51:16,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 10:51:16,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 10:51:16,799 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 10:51:16,799 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 10:51:16,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 10:51:16,799 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 10:51:16,799 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 10:51:16,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 10:51:16,800 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 10:51:17,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 10:51:17,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 10:51:17,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 10:51:17,020 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 10:51:17,021 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 10:51:17,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl [2021-10-22 10:51:17,022 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl' [2021-10-22 10:51:17,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 10:51:17,044 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 10:51:17,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 10:51:17,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 10:51:17,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 10:51:17,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:51:17" (1/1) ... [2021-10-22 10:51:17,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:51:17" (1/1) ... [2021-10-22 10:51:17,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 10:51:17,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 10:51:17,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 10:51:17,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 10:51:17,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:51:17" (1/1) ... [2021-10-22 10:51:17,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:51:17" (1/1) ... [2021-10-22 10:51:17,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:51:17" (1/1) ... [2021-10-22 10:51:17,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:51:17" (1/1) ... [2021-10-22 10:51:17,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:51:17" (1/1) ... [2021-10-22 10:51:17,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:51:17" (1/1) ... [2021-10-22 10:51:17,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:51:17" (1/1) ... [2021-10-22 10:51:17,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 10:51:17,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 10:51:17,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 10:51:17,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 10:51:17,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:51:17" (1/1) ... [2021-10-22 10:51:17,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 10:51:17,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 10:51:17,117 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 10:51:17,122 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 10:51:17,148 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-22 10:51:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 10:51:17,148 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 10:51:17,148 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-22 10:51:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-22 10:51:17,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-22 10:51:17,149 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 10:51:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 10:51:17,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 10:51:17,150 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 10:51:17,280 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 10:51:17,281 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-22 10:51:17,282 INFO L202 PluginConnector]: Adding new model misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:51:17 BoogieIcfgContainer [2021-10-22 10:51:17,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 10:51:17,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 10:51:17,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 10:51:17,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 10:51:17,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:51:17" (1/2) ... [2021-10-22 10:51:17,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5a1680 and model type misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 10:51:17, skipping insertion in model container [2021-10-22 10:51:17,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:51:17" (2/2) ... [2021-10-22 10:51:17,289 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-1.wvr.bpl [2021-10-22 10:51:17,293 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 10:51:17,293 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 10:51:17,294 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 10:51:17,294 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 10:51:17,322 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-22 10:51:17,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 10:51:17,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 10:51:17,363 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 10:51:17,384 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 10:51:17,443 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 10:51:17,448 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 10:51:17,448 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-22 10:51:17,516 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 10:51:17,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 10:51:17,521 INFO L82 PathProgramCache]: Analyzing trace with hash -2086014535, now seen corresponding path program 1 times [2021-10-22 10:51:17,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 10:51:17,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337663426] [2021-10-22 10:51:17,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:51:17,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 10:51:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:51:17,730 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 10:51:17,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 10:51:17,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337663426] [2021-10-22 10:51:17,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337663426] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 10:51:17,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 10:51:17,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 10:51:17,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136121480] [2021-10-22 10:51:17,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-22 10:51:17,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 10:51:17,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-22 10:51:17,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-22 10:51:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:51:17,750 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 10:51:17,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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 10:51:17,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:51:17,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:51:17,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 10:51:17,830 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 10:51:17,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 10:51:17,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1076017718, now seen corresponding path program 1 times [2021-10-22 10:51:17,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 10:51:17,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297420022] [2021-10-22 10:51:17,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:51:17,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 10:51:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:51:17,899 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-22 10:51:17,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 10:51:17,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297420022] [2021-10-22 10:51:17,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297420022] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:51:17,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186252505] [2021-10-22 10:51:17,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:51:17,901 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:51:17,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 10:51:17,907 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 10:51:17,912 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 10:51:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:51:17,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-22 10:51:17,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 10:51:18,174 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:51:18,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186252505] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:51:18,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 10:51:18,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-10-22 10:51:18,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971220598] [2021-10-22 10:51:18,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-22 10:51:18,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 10:51:18,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-22 10:51:18,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-22 10:51:18,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:51:18,184 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 10:51:18,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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 10:51:18,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:51:18,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:51:18,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:51:18,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:51:18,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-22 10:51:18,567 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,SelfDestructingSolverStorable1 [2021-10-22 10:51:18,568 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 10:51:18,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 10:51:18,569 INFO L82 PathProgramCache]: Analyzing trace with hash -627314951, now seen corresponding path program 1 times [2021-10-22 10:51:18,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 10:51:18,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666542925] [2021-10-22 10:51:18,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:51:18,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 10:51:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:51:19,325 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:51:19,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 10:51:19,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666542925] [2021-10-22 10:51:19,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666542925] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:51:19,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448970166] [2021-10-22 10:51:19,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:51:19,327 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:51:19,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 10:51:19,328 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 10:51:19,332 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 10:51:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:51:19,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-22 10:51:19,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 10:51:20,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-10-22 10:51:20,164 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:51:20,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448970166] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:51:20,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 10:51:20,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 19 [2021-10-22 10:51:20,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276993135] [2021-10-22 10:51:20,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-22 10:51:20,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 10:51:20,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-22 10:51:20,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2021-10-22 10:51:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:51:20,169 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 10:51:20,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 10:51:20,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:51:20,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:51:20,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:51:20,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:51:20,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:51:20,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:51:20,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-22 10:51:20,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:51:20,810 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 10:51:20,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 10:51:20,811 INFO L82 PathProgramCache]: Analyzing trace with hash 449884854, now seen corresponding path program 1 times [2021-10-22 10:51:20,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 10:51:20,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645392732] [2021-10-22 10:51:20,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:51:20,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 10:51:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:51:20,930 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:51:20,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 10:51:20,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645392732] [2021-10-22 10:51:20,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645392732] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:51:20,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629992038] [2021-10-22 10:51:20,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:51:20,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:51:20,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 10:51:20,932 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 10:51:20,933 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 10:51:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:51:21,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-22 10:51:21,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 10:51:21,197 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:51:21,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629992038] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:51:21,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 10:51:21,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 9 [2021-10-22 10:51:21,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374605177] [2021-10-22 10:51:21,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-22 10:51:21,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 10:51:21,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-22 10:51:21,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-22 10:51:21,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:51:21,200 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 10:51:21,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 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 10:51:21,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:51:21,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:51:21,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:51:21,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:51:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:51:21,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:51:21,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:51:21,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:51:21,418 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 10:51:21,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:51:21,604 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 10:51:21,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 10:51:21,604 INFO L82 PathProgramCache]: Analyzing trace with hash -460007367, now seen corresponding path program 2 times [2021-10-22 10:51:21,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 10:51:21,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732407094] [2021-10-22 10:51:21,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:51:21,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 10:51:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:51:22,788 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:51:22,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 10:51:22,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732407094] [2021-10-22 10:51:22,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732407094] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:51:22,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977567481] [2021-10-22 10:51:22,789 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 10:51:22,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:51:22,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 10:51:22,792 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 10:51:22,793 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 10:51:22,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 10:51:22,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 10:51:22,916 WARN L261 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-22 10:51:22,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 10:51:24,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2021-10-22 10:51:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:51:24,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977567481] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:51:24,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 10:51:24,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 35 [2021-10-22 10:51:24,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372576649] [2021-10-22 10:51:24,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-22 10:51:24,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 10:51:24,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-22 10:51:24,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2021-10-22 10:51:24,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:51:24,460 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 10:51:24,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.1666666666666665) internal successors, (78), 35 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 10:51:24,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:51:24,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:51:24,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:51:24,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:51:24,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:51:26,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:51:26,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:51:26,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:51:26,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:51:26,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-22 10:51:26,482 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 10:51:26,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:51:26,667 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 10:51:26,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 10:51:26,668 INFO L82 PathProgramCache]: Analyzing trace with hash -196042078, now seen corresponding path program 2 times [2021-10-22 10:51:26,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 10:51:26,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128435751] [2021-10-22 10:51:26,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:51:26,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 10:51:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:51:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 118 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:51:26,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 10:51:26,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128435751] [2021-10-22 10:51:26,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128435751] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:51:26,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424067543] [2021-10-22 10:51:26,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 10:51:26,871 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:51:26,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 10:51:26,872 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 10:51:26,872 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 10:51:27,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 10:51:27,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 10:51:27,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-22 10:51:27,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 10:51:27,357 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 139 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:51:27,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424067543] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:51:27,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 10:51:27,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 17 [2021-10-22 10:51:27,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206702943] [2021-10-22 10:51:27,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-22 10:51:27,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 10:51:27,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-22 10:51:27,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-10-22 10:51:27,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:51:27,359 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 10:51:27,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 17 states have internal predecessors, (80), 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 10:51:27,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:51:27,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:51:27,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:51:27,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:51:27,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-22 10:51:27,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:51:27,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:51:27,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:51:27,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:51:27,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:51:27,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 10:51:27,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 10:51:27,903 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 10:51:28,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:51:28,088 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 10:51:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 10:51:28,088 INFO L82 PathProgramCache]: Analyzing trace with hash -243196935, now seen corresponding path program 3 times [2021-10-22 10:51:28,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 10:51:28,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779641909] [2021-10-22 10:51:28,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:51:28,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 10:51:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:51:31,412 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 91 proven. 289 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:51:31,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 10:51:31,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779641909] [2021-10-22 10:51:31,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779641909] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:51:31,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817266734] [2021-10-22 10:51:31,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 10:51:31,413 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:51:31,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 10:51:31,414 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 10:51:31,415 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 10:51:31,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-10-22 10:51:31,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 10:51:31,731 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 95 conjunts are in the unsatisfiable core [2021-10-22 10:51:31,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 10:51:38,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:38,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 10:51:39,926 INFO L354 Elim1Store]: treesize reduction 606, result has 49.9 percent of original size [2021-10-22 10:51:39,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 24 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 112 case distinctions, treesize of input 144 treesize of output 650 [2021-10-22 10:52:34,416 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:52:34,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817266734] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:52:34,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 10:52:34,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 87 [2021-10-22 10:52:34,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576290891] [2021-10-22 10:52:34,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2021-10-22 10:52:34,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 10:52:34,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2021-10-22 10:52:34,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=639, Invalid=7017, Unknown=0, NotChecked=0, Total=7656 [2021-10-22 10:52:34,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:52:34,421 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 10:52:34,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 1.9772727272727273) internal successors, (174), 87 states have internal predecessors, (174), 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 10:52:34,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:52:34,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:52:34,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:52:34,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:52:34,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 10:52:34,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 10:52:34,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:52:49,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:52:49,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:52:49,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:52:49,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:52:49,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 10:52:49,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 10:52:49,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:52:49,477 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 10:52:49,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:52:49,661 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 10:52:49,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 10:52:49,661 INFO L82 PathProgramCache]: Analyzing trace with hash -435790997, now seen corresponding path program 3 times [2021-10-22 10:52:49,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 10:52:49,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177418440] [2021-10-22 10:52:49,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:52:49,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 10:52:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:52:50,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1462 backedges. 1067 proven. 395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:52:50,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 10:52:50,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177418440] [2021-10-22 10:52:50,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177418440] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:52:50,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191026020] [2021-10-22 10:52:50,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 10:52:50,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:52:50,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 10:52:50,350 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 10:52:50,351 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 10:52:50,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2021-10-22 10:52:50,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 10:52:50,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-22 10:52:50,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 10:52:51,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1462 backedges. 1135 proven. 327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:52:51,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191026020] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:52:51,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 10:52:51,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 39] total 40 [2021-10-22 10:52:51,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348272548] [2021-10-22 10:52:51,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-22 10:52:51,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 10:52:51,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-22 10:52:51,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=471, Invalid=1169, Unknown=0, NotChecked=0, Total=1640 [2021-10-22 10:52:51,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:52:51,403 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 10:52:51,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 4.195121951219512) internal successors, (172), 40 states have internal predecessors, (172), 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 10:52:51,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:52:51,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:52:51,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:52:51,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:52:51,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 10:52:51,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 10:52:51,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:52:51,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:52:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:52:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:52:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:52:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:52:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 10:52:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 10:52:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:52:52,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 10:52:52,838 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 10:52:53,023 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,SelfDestructingSolverStorable7 [2021-10-22 10:52:53,024 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 10:52:53,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 10:52:53,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1553446393, now seen corresponding path program 4 times [2021-10-22 10:52:53,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 10:52:53,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576116431] [2021-10-22 10:52:53,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:52:53,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 10:52:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:53:11,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 727 proven. 1925 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:53:11,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 10:53:11,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576116431] [2021-10-22 10:53:11,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576116431] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:53:11,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168816009] [2021-10-22 10:53:11,594 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 10:53:11,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:53:11,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 10:53:11,595 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 10:53:11,602 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 10:53:12,362 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 10:53:12,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 10:53:12,366 WARN L261 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 221 conjunts are in the unsatisfiable core [2021-10-22 10:53:12,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 10:53:45,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 325 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 88 [2021-10-22 10:53:45,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:53:45,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168816009] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:53:45,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 10:53:45,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [110, 106] total 211 [2021-10-22 10:53:45,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377901710] [2021-10-22 10:53:45,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 212 states [2021-10-22 10:53:45,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 10:53:45,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 212 interpolants. [2021-10-22 10:53:45,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4030, Invalid=40702, Unknown=0, NotChecked=0, Total=44732 [2021-10-22 10:53:45,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:53:45,850 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 10:53:45,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 212 states, 212 states have (on average 2.0283018867924527) internal successors, (430), 211 states have internal predecessors, (430), 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 10:53:45,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:53:45,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:53:45,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:53:45,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:53:45,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 10:53:45,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 10:53:45,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:53:45,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 10:53:45,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:54:28,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:54:28,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:54:28,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:54:28,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:54:28,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 10:54:28,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 10:54:28,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:54:28,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 10:54:28,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2021-10-22 10:54:28,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-22 10:54:28,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:54:28,259 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 10:54:28,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 10:54:28,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1348090571, now seen corresponding path program 4 times [2021-10-22 10:54:28,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 10:54:28,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275922821] [2021-10-22 10:54:28,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:54:28,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 10:54:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:54:30,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4742 backedges. 3035 proven. 1707 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:54:30,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 10:54:30,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275922821] [2021-10-22 10:54:30,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275922821] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:54:30,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603277709] [2021-10-22 10:54:30,245 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 10:54:30,245 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:54:30,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 10:54:30,246 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 10:54:30,247 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 10:54:31,540 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 10:54:31,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 10:54:31,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 72 conjunts are in the unsatisfiable core [2021-10-22 10:54:31,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 10:54:32,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4742 backedges. 3151 proven. 1591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:54:32,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603277709] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:54:32,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 10:54:32,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 71] total 72 [2021-10-22 10:54:32,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221387290] [2021-10-22 10:54:32,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-10-22 10:54:32,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 10:54:32,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-10-22 10:54:32,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1383, Invalid=3873, Unknown=0, NotChecked=0, Total=5256 [2021-10-22 10:54:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:54:32,401 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 10:54:32,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 4.109589041095891) internal successors, (300), 72 states have internal predecessors, (300), 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 10:54:32,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:54:32,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:54:32,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:54:32,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:54:32,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 10:54:32,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 10:54:32,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:54:32,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 10:54:32,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2021-10-22 10:54:32,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:54:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:54:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:54:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:54:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:54:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 10:54:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 10:54:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:54:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 10:54:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2021-10-22 10:54:35,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:54:35,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-10-22 10:54:35,719 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,SelfDestructingSolverStorable9 [2021-10-22 10:54:35,720 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 10:54:35,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 10:54:35,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1030311929, now seen corresponding path program 5 times [2021-10-22 10:54:35,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 10:54:35,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68094877] [2021-10-22 10:54:35,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:54:35,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 10:54:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:55:35,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6972 backedges. 1638 proven. 5334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:55:35,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 10:55:35,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68094877] [2021-10-22 10:55:35,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68094877] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:55:35,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721948423] [2021-10-22 10:55:35,845 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 10:55:35,846 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:55:35,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 10:55:35,848 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 10:55:35,849 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 10:55:37,759 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 43 check-sat command(s) [2021-10-22 10:55:37,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 10:55:37,765 WARN L261 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 349 conjunts are in the unsatisfiable core [2021-10-22 10:55:37,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 10:57:23,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 42 select indices, 42 select index equivalence classes, 861 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 0 case distinctions, treesize of input 388 treesize of output 136 [2021-10-22 10:57:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 6972 backedges. 0 proven. 6972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:57:24,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721948423] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:57:24,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 10:57:24,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [174, 170] total 339 [2021-10-22 10:57:24,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737857943] [2021-10-22 10:57:24,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 340 states [2021-10-22 10:57:24,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 10:57:24,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 340 interpolants. [2021-10-22 10:57:24,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9692, Invalid=105568, Unknown=0, NotChecked=0, Total=115260 [2021-10-22 10:57:24,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:57:24,041 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 10:57:24,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 340 states, 340 states have (on average 2.0176470588235293) internal successors, (686), 339 states have internal predecessors, (686), 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 10:57:24,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:57:24,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:57:24,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:57:24,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:57:24,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 10:57:24,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 10:57:24,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:57:24,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 10:57:24,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2021-10-22 10:57:24,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:57:24,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:59:21,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:59:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:59:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:59:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:59:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 10:59:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 10:59:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:59:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 10:59:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2021-10-22 10:59:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:59:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2021-10-22 10:59:21,130 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 10:59:21,311 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,SelfDestructingSolverStorable10 [2021-10-22 10:59:21,311 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 10:59:21,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 10:59:21,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1059579349, now seen corresponding path program 5 times [2021-10-22 10:59:21,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 10:59:21,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363144422] [2021-10-22 10:59:21,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:59:21,312 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 10:59:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 10:59:25,547 INFO L134 CoverageAnalysis]: Checked inductivity of 10070 backedges. 6027 proven. 4043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:59:25,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 10:59:25,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363144422] [2021-10-22 10:59:25,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363144422] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:59:25,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557446643] [2021-10-22 10:59:25,548 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 10:59:25,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 10:59:25,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 10:59:25,549 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 10:59:25,549 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 10:59:28,319 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 59 check-sat command(s) [2021-10-22 10:59:28,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 10:59:28,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 104 conjunts are in the unsatisfiable core [2021-10-22 10:59:28,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 10:59:29,625 INFO L134 CoverageAnalysis]: Checked inductivity of 10070 backedges. 6191 proven. 3879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 10:59:29,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557446643] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 10:59:29,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 10:59:29,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 103] total 104 [2021-10-22 10:59:29,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181985390] [2021-10-22 10:59:29,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2021-10-22 10:59:29,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 10:59:29,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2021-10-22 10:59:29,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2807, Invalid=8113, Unknown=0, NotChecked=0, Total=10920 [2021-10-22 10:59:29,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:59:29,629 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 10:59:29,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 4.076190476190476) internal successors, (428), 104 states have internal predecessors, (428), 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 10:59:29,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:59:29,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:59:29,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:59:29,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:59:29,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 10:59:29,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 10:59:29,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:59:29,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 10:59:29,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2021-10-22 10:59:29,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:59:29,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 231 states. [2021-10-22 10:59:29,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 10:59:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 10:59:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 10:59:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:59:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 10:59:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 10:59:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 10:59:35,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:59:35,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 10:59:35,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2021-10-22 10:59:35,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-22 10:59:35,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2021-10-22 10:59:35,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-10-22 10:59:35,619 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 10:59:35,794 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,SelfDestructingSolverStorable11 [2021-10-22 10:59:35,795 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 10:59:35,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 10:59:35,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1946818055, now seen corresponding path program 6 times [2021-10-22 10:59:35,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 10:59:35,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796218780] [2021-10-22 10:59:35,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 10:59:35,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 10:59:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:01:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 13340 backedges. 5175 proven. 8165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:01:57,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:01:57,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796218780] [2021-10-22 11:01:57,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796218780] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:01:57,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115722062] [2021-10-22 11:01:57,267 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 11:01:57,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:01:57,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:01:57,269 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 11:01:57,296 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 11:02:01,026 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 59 check-sat command(s) [2021-10-22 11:02:01,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:02:01,036 WARN L261 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 479 conjunts are in the unsatisfiable core [2021-10-22 11:02:01,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-10-22 11:04:34,148 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-22 11:04:34,162 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 11:04:34,162 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 11:04:34,162 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 11:04:34,174 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 11:04:34,348 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,SelfDestructingSolverStorable12 [2021-10-22 11:04:34,349 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 478 with TraceHistMax 58,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 380 known predicates. [2021-10-22 11:04:34,351 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 11:04:34,351 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-22 11:04:34,357 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 11:04:34,357 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 11:04:34,359 INFO L202 PluginConnector]: Adding new model misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:04:34 BasicIcfg [2021-10-22 11:04:34,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 11:04:34,360 INFO L168 Benchmark]: Toolchain (without parser) took 797315.36 ms. Allocated memory was 192.9 MB in the beginning and 6.0 GB in the end (delta: 5.8 GB). Free memory was 151.1 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 4.1 GB. Max. memory is 8.0 GB. [2021-10-22 11:04:34,360 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 192.9 MB. Free memory is still 152.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 11:04:34,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.43 ms. Allocated memory is still 192.9 MB. Free memory was 151.0 MB in the beginning and 149.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-22 11:04:34,360 INFO L168 Benchmark]: Boogie Preprocessor took 13.55 ms. Allocated memory is still 192.9 MB. Free memory was 149.5 MB in the beginning and 148.6 MB in the end (delta: 937.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 11:04:34,361 INFO L168 Benchmark]: RCFGBuilder took 195.92 ms. Allocated memory is still 192.9 MB. Free memory was 148.4 MB in the beginning and 136.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-22 11:04:34,362 INFO L168 Benchmark]: TraceAbstraction took 797074.95 ms. Allocated memory was 192.9 MB in the beginning and 6.0 GB in the end (delta: 5.8 GB). Free memory was 136.1 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 4.0 GB. Max. memory is 8.0 GB. [2021-10-22 11:04:34,363 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 0.11 ms. Allocated memory is still 192.9 MB. Free memory is still 152.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.43 ms. Allocated memory is still 192.9 MB. Free memory was 151.0 MB in the beginning and 149.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.55 ms. Allocated memory is still 192.9 MB. Free memory was 149.5 MB in the beginning and 148.6 MB in the end (delta: 937.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 195.92 ms. Allocated memory is still 192.9 MB. Free memory was 148.4 MB in the beginning and 136.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 797074.95 ms. Allocated memory was 192.9 MB in the beginning and 6.0 GB in the end (delta: 5.8 GB). Free memory was 136.1 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 4.0 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7808, positive: 5466, positive conditional: 5208, positive unconditional: 258, negative: 2342, negative conditional: 2342, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5466, positive: 5466, positive conditional: 0, positive unconditional: 5466, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 238, positive: 238, positive conditional: 0, positive unconditional: 238, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 238, positive: 238, positive conditional: 0, positive unconditional: 238, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5466, positive: 5228, positive conditional: 0, positive unconditional: 5228, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 238, unknown conditional: 0, unknown unconditional: 238] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 238, Positive conditional cache size: 0, Positive unconditional cache size: 238, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 2342 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 27, Number of persistent set computation: 23, Number of trivial persistent sets: 6, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7808, positive: 5466, positive conditional: 5208, positive unconditional: 258, negative: 2342, negative conditional: 2342, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5466, positive: 5466, positive conditional: 0, positive unconditional: 5466, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 238, positive: 238, positive conditional: 0, positive unconditional: 238, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 238, positive: 238, positive conditional: 0, positive unconditional: 238, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5466, positive: 5228, positive conditional: 0, positive unconditional: 5228, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 238, unknown conditional: 0, unknown unconditional: 238] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 238, Positive conditional cache size: 0, Positive unconditional cache size: 238, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 2342 - 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: 65]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 478 with TraceHistMax 58,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 380 known predicates. - TimeoutResultAtElement [Line: 60]: 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 478 with TraceHistMax 58,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 380 known predicates. - TimeoutResultAtElement [Line: 60]: 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 478 with TraceHistMax 58,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 380 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 48 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 796999.5ms, OverallIterations: 13, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.2ms, PartialOrderReductionTime: 188238.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 756, 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: 128.1ms SsaConstructionTime, 1152.0ms SatisfiabilityAnalysisTime, 298800.2ms InterpolantComputationTime, 3519 NumberOfCodeBlocks, 3519 NumberOfCodeBlocksAsserted, 161 NumberOfCheckSat, 3496 ConstructedInterpolants, 42 QuantifiedInterpolants, 255249 SizeOfPredicates, 50 NumberOfNonLiveVariables, 2822 ConjunctsInSsa, 986 ConjunctsInUnsatCore, 23 InterpolantComputations, 1 PerfectInterpolantSequences, 23346/53170 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