/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-min.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-07 03:54:24,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-07 03:54:24,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-07 03:54:25,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-07 03:54:25,094 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf [2021-08-07 03:54:25,128 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-07 03:54:25,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-07 03:54:25,129 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-07 03:54:25,129 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-07 03:54:25,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-07 03:54:25,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-07 03:54:25,132 INFO L138 SettingsManager]: * Use SBE=true [2021-08-07 03:54:25,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-07 03:54:25,133 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-07 03:54:25,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-07 03:54:25,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-07 03:54:25,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-07 03:54:25,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-07 03:54:25,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-07 03:54:25,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-07 03:54:25,135 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-07 03:54:25,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-07 03:54:25,135 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-07 03:54:25,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-07 03:54:25,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-07 03:54:25,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-07 03:54:25,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-07 03:54:25,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-07 03:54:25,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 03:54:25,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-07 03:54:25,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-07 03:54:25,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-07 03:54:25,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-07 03:54:25,137 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-08-07 03:54:25,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-07 03:54:25,137 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-07 03:54:25,137 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-07 03:54:25,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-07 03:54:25,138 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-08-07 03:54:25,138 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-07 03:54:25,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-07 03:54:25,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-07 03:54:25,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-07 03:54:25,501 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-07 03:54:25,502 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-07 03:54:25,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-min.wvr.bpl [2021-08-07 03:54:25,503 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-min.wvr.bpl' [2021-08-07 03:54:25,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-07 03:54:25,540 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-07 03:54:25,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-07 03:54:25,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-07 03:54:25,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-07 03:54:25,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:54:25" (1/1) ... [2021-08-07 03:54:25,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:54:25" (1/1) ... [2021-08-07 03:54:25,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-07 03:54:25,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-07 03:54:25,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-07 03:54:25,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-07 03:54:25,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:54:25" (1/1) ... [2021-08-07 03:54:25,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:54:25" (1/1) ... [2021-08-07 03:54:25,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:54:25" (1/1) ... [2021-08-07 03:54:25,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:54:25" (1/1) ... [2021-08-07 03:54:25,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:54:25" (1/1) ... [2021-08-07 03:54:25,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:54:25" (1/1) ... [2021-08-07 03:54:25,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:54:25" (1/1) ... [2021-08-07 03:54:25,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-07 03:54:25,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-07 03:54:25,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-07 03:54:25,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-07 03:54:25,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:54:25" (1/1) ... [2021-08-07 03:54:25,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 03:54:25,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:54:25,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-07 03:54:25,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-07 03:54:25,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-07 03:54:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-07 03:54:25,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-07 03:54:25,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-07 03:54:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-07 03:54:25,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-07 03:54:25,678 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-07 03:54:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-07 03:54:25,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-07 03:54:25,678 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-07 03:54:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-07 03:54:25,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-07 03:54:25,679 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-07 03:54:25,935 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-07 03:54:25,935 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-07 03:54:25,937 INFO L202 PluginConnector]: Adding new model three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 03:54:25 BoogieIcfgContainer [2021-08-07 03:54:25,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-07 03:54:25,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-07 03:54:25,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-07 03:54:25,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-07 03:54:25,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:54:25" (1/2) ... [2021-08-07 03:54:25,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46203bf2 and model type three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 03:54:25, skipping insertion in model container [2021-08-07 03:54:25,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 03:54:25" (2/2) ... [2021-08-07 03:54:25,946 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-min.wvr.bpl [2021-08-07 03:54:25,950 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-07 03:54:25,950 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-07 03:54:25,950 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-07 03:54:25,950 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-07 03:54:25,998 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-08-07 03:54:26,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-07 03:54:26,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:54:26,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-07 03:54:26,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-08-07 03:54:26,083 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-07 03:54:26,087 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-07 03:54:26,087 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-07 03:54:26,210 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-07 03:54:26,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:54:26,214 INFO L82 PathProgramCache]: Analyzing trace with hash -705211932, now seen corresponding path program 1 times [2021-08-07 03:54:26,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:54:26,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394211072] [2021-08-07 03:54:26,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:54:26,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:54:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:54:26,489 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-07 03:54:26,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:54:26,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394211072] [2021-08-07 03:54:26,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394211072] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:54:26,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358616345] [2021-08-07 03:54:26,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:54:26,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:54:26,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:54:26,496 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 03:54:26,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-07 03:54:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:54:26,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-07 03:54:26,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:54:26,869 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-07 03:54:26,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358616345] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:54:26,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:54:26,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-08-07 03:54:26,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509944223] [2021-08-07 03:54:26,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-07 03:54:26,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:54:26,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-07 03:54:26,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-07 03:54:26,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:54:26,892 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:54:26,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 03:54:26,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:54:27,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:54:27,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-07 03:54:27,221 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,SelfDestructingSolverStorable0 [2021-08-07 03:54:27,221 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-07 03:54:27,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:54:27,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1191221638, now seen corresponding path program 2 times [2021-08-07 03:54:27,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:54:27,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509797859] [2021-08-07 03:54:27,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:54:27,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:54:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:54:29,137 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 03:54:29,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:54:29,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509797859] [2021-08-07 03:54:29,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509797859] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:54:29,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142131216] [2021-08-07 03:54:29,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 03:54:29,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:54:29,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:54:29,141 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 03:54:29,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-07 03:54:29,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 03:54:29,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:54:29,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 29 conjunts are in the unsatisfiable core [2021-08-07 03:54:29,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:54:31,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-08-07 03:54:32,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-07 03:54:32,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-07 03:54:32,155 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-07 03:54:32,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 144 [2021-08-07 03:54:32,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-07 03:54:32,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-07 03:54:32,180 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-07 03:54:32,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 115 [2021-08-07 03:54:32,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-07 03:54:32,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 111 [2021-08-07 03:54:33,378 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-07 03:54:33,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 108 treesize of output 94 [2021-08-07 03:54:33,684 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 03:54:33,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142131216] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:54:33,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:54:33,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2021-08-07 03:54:33,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530052561] [2021-08-07 03:54:33,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-07 03:54:33,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:54:33,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-07 03:54:33,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2021-08-07 03:54:33,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:54:33,688 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:54:33,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 03:54:33,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:54:33,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:54:35,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:54:35,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:54:35,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-07 03:54:35,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:54:35,261 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-07 03:54:35,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:54:35,261 INFO L82 PathProgramCache]: Analyzing trace with hash 980925092, now seen corresponding path program 3 times [2021-08-07 03:54:35,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:54:35,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451203815] [2021-08-07 03:54:35,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:54:35,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:54:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:54:35,354 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-07 03:54:35,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:54:35,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451203815] [2021-08-07 03:54:35,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451203815] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:54:35,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678460217] [2021-08-07 03:54:35,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 03:54:35,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:54:35,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:54:35,369 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 03:54:35,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-07 03:54:35,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-08-07 03:54:35,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:54:35,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-07 03:54:35,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:54:35,812 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-07 03:54:35,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678460217] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:54:35,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:54:35,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-08-07 03:54:35,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234270063] [2021-08-07 03:54:35,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-07 03:54:35,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:54:35,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-07 03:54:35,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-08-07 03:54:35,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:54:35,814 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:54:35,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 03:54:35,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:54:35,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:54:35,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:54:35,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:54:35,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:54:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 03:54:35,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-07 03:54:36,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:54:36,175 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-07 03:54:36,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:54:36,175 INFO L82 PathProgramCache]: Analyzing trace with hash 488028610, now seen corresponding path program 4 times [2021-08-07 03:54:36,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:54:36,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839306633] [2021-08-07 03:54:36,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:54:36,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:54:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:54:36,270 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-07 03:54:36,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:54:36,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839306633] [2021-08-07 03:54:36,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839306633] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:54:36,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225620816] [2021-08-07 03:54:36,271 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 03:54:36,271 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:54:36,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:54:36,277 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 03:54:36,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-07 03:54:36,497 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 03:54:36,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:54:36,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-07 03:54:36,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:54:36,750 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 28 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-08-07 03:54:36,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225620816] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:54:36,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:54:36,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 11 [2021-08-07 03:54:36,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498348498] [2021-08-07 03:54:36,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-07 03:54:36,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:54:36,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-07 03:54:36,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-08-07 03:54:36,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:54:36,752 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:54:36,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 03:54:36,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:54:36,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:54:36,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 03:54:36,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:54:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:54:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:54:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 03:54:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:54:36,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-07 03:54:37,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:54:37,103 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-07 03:54:37,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:54:37,103 INFO L82 PathProgramCache]: Analyzing trace with hash -739088032, now seen corresponding path program 5 times [2021-08-07 03:54:37,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:54:37,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878856035] [2021-08-07 03:54:37,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:54:37,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:54:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:54:37,224 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-07 03:54:37,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:54:37,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878856035] [2021-08-07 03:54:37,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878856035] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:54:37,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951246643] [2021-08-07 03:54:37,225 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-07 03:54:37,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:54:37,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:54:37,226 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 03:54:37,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-07 03:54:37,482 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-08-07 03:54:37,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:54:37,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-07 03:54:37,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:54:37,744 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-08-07 03:54:37,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951246643] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:54:37,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:54:37,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 16 [2021-08-07 03:54:37,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871474916] [2021-08-07 03:54:37,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-07 03:54:37,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:54:37,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-07 03:54:37,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-08-07 03:54:37,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:54:37,747 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:54:37,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 03:54:37,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:54:37,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:54:37,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 03:54:37,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:54:37,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:54:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:54:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:54:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 03:54:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:54:38,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-08-07 03:54:38,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-07 03:54:39,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:54:39,018 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-07 03:54:39,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:54:39,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1101321359, now seen corresponding path program 1 times [2021-08-07 03:54:39,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:54:39,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053842625] [2021-08-07 03:54:39,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:54:39,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:54:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:54:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 03:54:59,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:54:59,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053842625] [2021-08-07 03:54:59,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053842625] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:54:59,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080549319] [2021-08-07 03:54:59,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:54:59,273 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:54:59,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:54:59,276 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 03:54:59,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-07 03:54:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:54:59,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 47 conjunts are in the unsatisfiable core [2021-08-07 03:54:59,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:55:07,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-08-07 03:55:13,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-07 03:55:13,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-08-07 03:55:15,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-07 03:55:15,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-07 03:55:15,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-07 03:55:15,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2021-08-07 03:55:28,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 875 treesize of output 665 [2021-08-07 03:55:28,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 1010 treesize of output 682 [2021-08-07 03:55:28,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 682 treesize of output 566 [2021-08-07 03:55:40,842 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 505 treesize of output 299 [2021-08-07 03:55:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 03:55:40,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080549319] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:40,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:55:40,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 32 [2021-08-07 03:55:40,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529877376] [2021-08-07 03:55:40,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-08-07 03:55:40,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:55:40,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-08-07 03:55:40,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=907, Unknown=0, NotChecked=0, Total=1056 [2021-08-07 03:55:40,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:40,985 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:55:40,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.5757575757575757) internal successors, (85), 32 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 03:55:40,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:55:40,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:55:40,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 03:55:40,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:55:40,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-08-07 03:55:40,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:52,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:55:52,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:55:52,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 03:55:52,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:55:52,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-08-07 03:55:52,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 03:55:52,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-07 03:55:52,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:55:52,525 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-07 03:55:52,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:55:52,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1583941677, now seen corresponding path program 2 times [2021-08-07 03:55:52,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:55:52,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081439016] [2021-08-07 03:55:52,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:55:52,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:55:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:55:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 16 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-08-07 03:55:52,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:55:52,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081439016] [2021-08-07 03:55:52,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081439016] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:52,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914382393] [2021-08-07 03:55:52,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 03:55:52,645 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:55:52,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:55:52,649 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 03:55:52,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-07 03:55:54,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 03:55:54,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:55:54,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-07 03:55:54,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:55:54,356 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 43 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-08-07 03:55:54,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914382393] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:54,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:55:54,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 13 [2021-08-07 03:55:54,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516140967] [2021-08-07 03:55:54,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-07 03:55:54,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:55:54,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-07 03:55:54,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-08-07 03:55:54,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:54,359 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:55:54,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 03:55:54,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:55:54,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:55:54,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 03:55:54,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:55:54,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-08-07 03:55:54,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 03:55:54,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:55:54,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:55:54,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 03:55:54,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:55:54,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-08-07 03:55:54,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 03:55:54,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 03:55:54,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-07 03:55:54,744 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,SelfDestructingSolverStorable6 [2021-08-07 03:55:54,745 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-07 03:55:54,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:55:54,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1791228405, now seen corresponding path program 3 times [2021-08-07 03:55:54,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:55:54,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866919044] [2021-08-07 03:55:54,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:55:54,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:55:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:55:54,922 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 24 proven. 58 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-08-07 03:55:54,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:55:54,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866919044] [2021-08-07 03:55:54,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866919044] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:54,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502523979] [2021-08-07 03:55:54,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 03:55:54,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:55:54,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:55:54,923 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 03:55:54,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-07 03:55:56,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-08-07 03:55:56,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:55:56,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-07 03:55:56,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:55:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 36 proven. 35 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-07 03:55:56,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502523979] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:56,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:55:56,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 24 [2021-08-07 03:55:56,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248730673] [2021-08-07 03:55:56,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-07 03:55:56,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:55:56,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-07 03:55:56,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2021-08-07 03:55:56,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:56,736 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:55:56,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.4) internal successors, (85), 24 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 03:55:56,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:55:56,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:55:56,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 03:55:56,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:55:56,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-08-07 03:55:56,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 03:55:56,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 03:55:56,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:56:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:56:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:56:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 03:56:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:56:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-08-07 03:56:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 03:56:00,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 03:56:00,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2021-08-07 03:56:00,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-07 03:56:00,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:56:00,453 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-07 03:56:00,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:56:00,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1737601163, now seen corresponding path program 4 times [2021-08-07 03:56:00,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:56:00,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387843421] [2021-08-07 03:56:00,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:56:00,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:56:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:56:00,602 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 49 proven. 25 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-08-07 03:56:00,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:56:00,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387843421] [2021-08-07 03:56:00,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387843421] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:56:00,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968262720] [2021-08-07 03:56:00,603 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 03:56:00,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:56:00,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:56:00,604 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) [2021-08-07 03:56:00,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-07 03:56:02,080 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 03:56:02,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:56:02,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-07 03:56:02,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:56:02,336 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 49 proven. 25 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-08-07 03:56:02,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968262720] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:56:02,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:56:02,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-08-07 03:56:02,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877104703] [2021-08-07 03:56:02,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-07 03:56:02,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:56:02,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-07 03:56:02,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-08-07 03:56:02,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:56:02,338 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:56:02,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 03:56:02,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:56:02,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:56:02,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 03:56:02,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:56:02,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-08-07 03:56:02,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 03:56:02,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 03:56:02,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2021-08-07 03:56:02,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:56:02,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 03:56:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 03:56:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 03:56:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:56:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-08-07 03:56:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 03:56:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 03:56:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2021-08-07 03:56:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 03:56:02,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-07 03:56:02,768 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,SelfDestructingSolverStorable8 [2021-08-07 03:56:02,769 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-07 03:56:02,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:56:02,769 INFO L82 PathProgramCache]: Analyzing trace with hash 512757655, now seen corresponding path program 5 times [2021-08-07 03:56:02,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:56:02,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837731500] [2021-08-07 03:56:02,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:56:02,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:56:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2021-08-07 04:08:40,294 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-07 04:08:40,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-07 04:08:40,294 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 64 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-25-3-22-4-24-4-24-4-24-4-24-4-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-23-3-22-3-22-3-21-3-20-3-18-3-18-3-17-3-17-3-17-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-14-3-14-3-14-3-11-3-11-3-11-3-11-3-11-3-10-3-9-3-9-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-4-3-4-3-4-3-4-3-3-3-3-2-3-2-3-2-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-62-16-22-17-24-16-24-16-24-16-24-16-24-16-24-14-24-14-24-14-24-14-24-14-24-14-24-11-24-11-24-11-24-11-24-11-24-10-24-9-24-9-24-8-24-8-24-8-24-8-23-7-22-7-22-7-21-7-20-4-18-4-18-4-17-4-17-3-17-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-14-3-14-3-14-3-11-3-11-3-11-3-11-3-11-3-10-3-9-3-9-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-4-3-4-3-4-3-4-3-3-3-3-2-3-2-3-2-3-2-3-1 context. [2021-08-07 04:08:40,300 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-07 04:08:40,300 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-07 04:08:40,301 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-07 04:08:40,303 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 [2021-08-07 04:08:40,303 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 [2021-08-07 04:08:40,309 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-07 04:08:40,309 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-07 04:08:40,316 INFO L202 PluginConnector]: Adding new model three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.08 04:08:40 BasicIcfg [2021-08-07 04:08:40,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-07 04:08:40,317 INFO L168 Benchmark]: Toolchain (without parser) took 854777.24 ms. Allocated memory was 206.6 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 187.4 MB in the beginning and 884.6 MB in the end (delta: -697.1 MB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. [2021-08-07 04:08:40,317 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 206.6 MB. Free memory is still 188.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-07 04:08:40,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.57 ms. Allocated memory is still 206.6 MB. Free memory was 187.4 MB in the beginning and 185.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-07 04:08:40,322 INFO L168 Benchmark]: Boogie Preprocessor took 26.31 ms. Allocated memory is still 206.6 MB. Free memory was 185.9 MB in the beginning and 185.0 MB in the end (delta: 910.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-07 04:08:40,322 INFO L168 Benchmark]: RCFGBuilder took 341.47 ms. Allocated memory is still 206.6 MB. Free memory was 184.8 MB in the beginning and 169.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-07 04:08:40,322 INFO L168 Benchmark]: TraceAbstraction took 854377.84 ms. Allocated memory was 206.6 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 169.1 MB in the beginning and 884.6 MB in the end (delta: -715.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. [2021-08-07 04:08:40,322 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 0.14 ms. Allocated memory is still 206.6 MB. Free memory is still 188.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.57 ms. Allocated memory is still 206.6 MB. Free memory was 187.4 MB in the beginning and 185.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.31 ms. Allocated memory is still 206.6 MB. Free memory was 185.9 MB in the beginning and 185.0 MB in the end (delta: 910.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 341.47 ms. Allocated memory is still 206.6 MB. Free memory was 184.8 MB in the beginning and 169.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 854377.84 ms. Allocated memory was 206.6 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 169.1 MB in the beginning and 884.6 MB in the end (delta: -715.4 MB). Peak memory consumption was 1.0 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: 37007, positive: 29871, positive conditional: 29871, positive unconditional: 0, negative: 7136, negative conditional: 7136, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30901, positive: 29871, positive conditional: 29871, positive unconditional: 0, negative: 1030, negative conditional: 1030, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 30901, positive: 29871, positive conditional: 29871, positive unconditional: 0, negative: 1030, negative conditional: 1030, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 43169, positive: 29871, positive conditional: 29808, positive unconditional: 63, negative: 13298, negative conditional: 12268, negative unconditional: 1030, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 43169, positive: 29871, positive conditional: 16267, positive unconditional: 13604, negative: 13298, negative conditional: 5321, negative unconditional: 7977, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 43169, positive: 29871, positive conditional: 16267, positive unconditional: 13604, negative: 13298, negative conditional: 5321, negative unconditional: 7977, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 426, positive: 117, positive conditional: 46, positive unconditional: 71, negative: 309, negative conditional: 304, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 426, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 353, negative conditional: 0, negative unconditional: 353, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 353, positive: 44, positive conditional: 44, positive unconditional: 0, negative: 309, negative conditional: 304, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 701, positive: 110, positive conditional: 110, positive unconditional: 0, negative: 592, negative conditional: 520, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 43169, positive: 29754, positive conditional: 16221, positive unconditional: 13533, negative: 12989, negative conditional: 5017, negative unconditional: 7972, unknown: 426, unknown conditional: 350, unknown unconditional: 76] , Statistics on independence cache: Total cache size (in pairs): 426, Positive cache size: 117, Positive conditional cache size: 46, Positive unconditional cache size: 71, Negative cache size: 309, Negative conditional cache size: 304, Negative unconditional cache size: 5, Eliminated conditions: 20488, Maximal queried relation: 9, Independence queries for same thread: 6106 - 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: 74]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 64 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-25-3-22-4-24-4-24-4-24-4-24-4-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-23-3-22-3-22-3-21-3-20-3-18-3-18-3-17-3-17-3-17-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-14-3-14-3-14-3-11-3-11-3-11-3-11-3-11-3-10-3-9-3-9-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-4-3-4-3-4-3-4-3-3-3-3-2-3-2-3-2-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-62-16-22-17-24-16-24-16-24-16-24-16-24-16-24-14-24-14-24-14-24-14-24-14-24-14-24-11-24-11-24-11-24-11-24-11-24-10-24-9-24-9-24-8-24-8-24-8-24-8-23-7-22-7-22-7-21-7-20-4-18-4-18-4-17-4-17-3-17-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-14-3-14-3-14-3-11-3-11-3-11-3-11-3-11-3-10-3-9-3-9-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-4-3-4-3-4-3-4-3-3-3-3-2-3-2-3-2-3-2-3-1 context. - TimeoutResultAtElement [Line: 67]: 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 64 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-25-3-22-4-24-4-24-4-24-4-24-4-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-23-3-22-3-22-3-21-3-20-3-18-3-18-3-17-3-17-3-17-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-14-3-14-3-14-3-11-3-11-3-11-3-11-3-11-3-10-3-9-3-9-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-4-3-4-3-4-3-4-3-3-3-3-2-3-2-3-2-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-62-16-22-17-24-16-24-16-24-16-24-16-24-16-24-14-24-14-24-14-24-14-24-14-24-14-24-11-24-11-24-11-24-11-24-11-24-10-24-9-24-9-24-8-24-8-24-8-24-8-23-7-22-7-22-7-21-7-20-4-18-4-18-4-17-4-17-3-17-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-14-3-14-3-14-3-11-3-11-3-11-3-11-3-11-3-10-3-9-3-9-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-4-3-4-3-4-3-4-3-3-3-3-2-3-2-3-2-3-2-3-1 context. - TimeoutResultAtElement [Line: 68]: 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 64 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-25-3-22-4-24-4-24-4-24-4-24-4-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-23-3-22-3-22-3-21-3-20-3-18-3-18-3-17-3-17-3-17-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-14-3-14-3-14-3-11-3-11-3-11-3-11-3-11-3-10-3-9-3-9-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-4-3-4-3-4-3-4-3-3-3-3-2-3-2-3-2-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-62-16-22-17-24-16-24-16-24-16-24-16-24-16-24-14-24-14-24-14-24-14-24-14-24-14-24-11-24-11-24-11-24-11-24-11-24-10-24-9-24-9-24-8-24-8-24-8-24-8-23-7-22-7-22-7-21-7-20-4-18-4-18-4-17-4-17-3-17-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-14-3-14-3-14-3-11-3-11-3-11-3-11-3-11-3-10-3-9-3-9-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-4-3-4-3-4-3-4-3-3-3-3-2-3-2-3-2-3-2-3-1 context. - TimeoutResultAtElement [Line: 67]: 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 64 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-25-3-22-4-24-4-24-4-24-4-24-4-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-24-3-23-3-22-3-22-3-21-3-20-3-18-3-18-3-17-3-17-3-17-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-14-3-14-3-14-3-11-3-11-3-11-3-11-3-11-3-10-3-9-3-9-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-4-3-4-3-4-3-4-3-3-3-3-2-3-2-3-2-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-62-16-22-17-24-16-24-16-24-16-24-16-24-16-24-14-24-14-24-14-24-14-24-14-24-14-24-11-24-11-24-11-24-11-24-11-24-10-24-9-24-9-24-8-24-8-24-8-24-8-23-7-22-7-22-7-21-7-20-4-18-4-18-4-17-4-17-3-17-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-14-3-14-3-14-3-11-3-11-3-11-3-11-3-11-3-10-3-9-3-9-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-4-3-4-3-4-3-4-3-3-3-3-2-3-2-3-2-3-2-3-1 context. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 854258.1ms, OverallIterations: 10, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.2ms, PartialOrderReductionTime: 18115.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 313, 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: 68.3ms SsaConstructionTime, 625.3ms SatisfiabilityAnalysisTime, 70402.5ms InterpolantComputationTime, 828 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 810 ConstructedInterpolants, 0 QuantifiedInterpolants, 36997 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1073 ConjunctsInSsa, 144 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 626/1052 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