/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-None-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 17:39:48,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 17:39:48,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 17:39:48,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 17:39:48,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-06 17:39:48,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-06 17:39:48,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-06 17:39:48,734 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-None-NoLbe.epf [2021-08-06 17:39:48,760 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 17:39:48,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 17:39:48,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-06 17:39:48,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-06 17:39:48,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 17:39:48,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 17:39:48,763 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 17:39:48,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 17:39:48,764 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 17:39:48,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 17:39:48,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 17:39:48,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 17:39:48,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 17:39:48,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 17:39:48,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 17:39:48,765 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 17:39:48,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 17:39:48,765 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 17:39:48,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 17:39:48,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 17:39:48,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 17:39:48,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 17:39:48,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 17:39:48,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 17:39:48,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 17:39:48,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 17:39:48,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 17:39:48,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 17:39:48,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 17:39:48,766 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 17:39:48,767 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-06 17:39:48,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 17:39:48,767 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 17:39:49,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 17:39:49,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 17:39:49,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 17:39:49,028 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-06 17:39:49,029 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-06 17:39:49,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl [2021-08-06 17:39:49,030 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl' [2021-08-06 17:39:49,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 17:39:49,057 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-06 17:39:49,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 17:39:49,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 17:39:49,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 17:39:49,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 05:39:49" (1/1) ... [2021-08-06 17:39:49,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 05:39:49" (1/1) ... [2021-08-06 17:39:49,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 17:39:49,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 17:39:49,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 17:39:49,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 17:39:49,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 05:39:49" (1/1) ... [2021-08-06 17:39:49,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 05:39:49" (1/1) ... [2021-08-06 17:39:49,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 05:39:49" (1/1) ... [2021-08-06 17:39:49,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 05:39:49" (1/1) ... [2021-08-06 17:39:49,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 05:39:49" (1/1) ... [2021-08-06 17:39:49,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 05:39:49" (1/1) ... [2021-08-06 17:39:49,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 05:39:49" (1/1) ... [2021-08-06 17:39:49,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 17:39:49,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 17:39:49,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 17:39:49,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 17:39:49,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 05:39:49" (1/1) ... [2021-08-06 17:39:49,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 17:39:49,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 17:39:49,125 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) [2021-08-06 17:39:49,141 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 [2021-08-06 17:39:49,172 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-06 17:39:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-06 17:39:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-06 17:39:49,172 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-06 17:39:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-06 17:39:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-06 17:39:49,173 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-06 17:39:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 17:39:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 17:39:49,174 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-06 17:39:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-06 17:39:49,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-06 17:39:49,175 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-06 17:39:49,383 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 17:39:49,384 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-06 17:39:49,385 INFO L202 PluginConnector]: Adding new model three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 05:39:49 BoogieIcfgContainer [2021-08-06 17:39:49,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 17:39:49,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 17:39:49,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 17:39:49,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 17:39:49,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 05:39:49" (1/2) ... [2021-08-06 17:39:49,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c498b70 and model type three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 05:39:49, skipping insertion in model container [2021-08-06 17:39:49,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 05:39:49" (2/2) ... [2021-08-06 17:39:49,390 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-max.wvr.bpl [2021-08-06 17:39:49,393 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 17:39:49,393 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 17:39:49,393 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 17:39:49,393 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 17:39:49,418 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-08-06 17:39:49,446 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-06 17:39:49,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 17:39:49,447 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) [2021-08-06 17:39:49,448 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 [2021-08-06 17:39:49,465 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 17:39:49,469 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 [2021-08-06 17:39:49,469 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-06 17:39:49,475 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 32 transitions, 88 flow [2021-08-06 17:39:49,514 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 134 states, 133 states have (on average 2.9774436090225564) internal successors, (396), 133 states have internal predecessors, (396), 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) [2021-08-06 17:39:49,521 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 17:39:49,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 17:39:49,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1312335564, now seen corresponding path program 1 times [2021-08-06 17:39:49,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 17:39:49,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994859935] [2021-08-06 17:39:49,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 17:39:49,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 17:39:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 17:39:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 17:39:49,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 17:39:49,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994859935] [2021-08-06 17:39:49,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994859935] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 17:39:49,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428274754] [2021-08-06 17:39:49,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 17:39:49,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 17:39:49,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 17:39:49,764 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) [2021-08-06 17:39:49,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-06 17:39:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 17:39:49,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-06 17:39:49,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 17:39:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 17:39:50,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428274754] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 17:39:50,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 17:39:50,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-08-06 17:39:50,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450022377] [2021-08-06 17:39:50,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 17:39:50,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 17:39:50,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 17:39:50,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-06 17:39:50,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:50,094 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 17:39:50,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 17:39:50,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:50,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:50,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-08-06 17:39:50,382 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 [2021-08-06 17:39:50,382 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 17:39:50,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 17:39:50,383 INFO L82 PathProgramCache]: Analyzing trace with hash 736468360, now seen corresponding path program 2 times [2021-08-06 17:39:50,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 17:39:50,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92264144] [2021-08-06 17:39:50,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 17:39:50,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 17:39:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 17:39:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-08-06 17:39:50,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 17:39:50,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92264144] [2021-08-06 17:39:50,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92264144] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 17:39:50,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398837929] [2021-08-06 17:39:50,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-06 17:39:50,449 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 17:39:50,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 17:39:50,453 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) [2021-08-06 17:39:50,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-06 17:39:50,525 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-06 17:39:50,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 17:39:50,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-06 17:39:50,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 17:39:50,734 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-08-06 17:39:50,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398837929] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 17:39:50,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 17:39:50,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-08-06 17:39:50,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051827143] [2021-08-06 17:39:50,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 17:39:50,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 17:39:50,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 17:39:50,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-06 17:39:50,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:50,741 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 17:39:50,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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) [2021-08-06 17:39:50,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:50,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:50,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:50,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:50,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-06 17:39:51,040 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 [2021-08-06 17:39:51,041 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 17:39:51,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 17:39:51,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1268346894, now seen corresponding path program 3 times [2021-08-06 17:39:51,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 17:39:51,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404255495] [2021-08-06 17:39:51,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 17:39:51,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 17:39:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 17:39:51,140 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-06 17:39:51,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 17:39:51,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404255495] [2021-08-06 17:39:51,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404255495] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 17:39:51,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479857303] [2021-08-06 17:39:51,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-06 17:39:51,141 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 17:39:51,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 17:39:51,142 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) [2021-08-06 17:39:51,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-06 17:39:51,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-08-06 17:39:51,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 17:39:51,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-06 17:39:51,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 17:39:51,398 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-06 17:39:51,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479857303] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 17:39:51,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 17:39:51,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-08-06 17:39:51,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760384833] [2021-08-06 17:39:51,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 17:39:51,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 17:39:51,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 17:39:51,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-06 17:39:51,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:51,399 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 17:39:51,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 17:39:51,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:51,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:51,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:51,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:51,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:51,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 17:39:51,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-06 17:39:51,734 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 [2021-08-06 17:39:51,734 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 17:39:51,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 17:39:51,734 INFO L82 PathProgramCache]: Analyzing trace with hash 741692859, now seen corresponding path program 1 times [2021-08-06 17:39:51,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 17:39:51,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949609238] [2021-08-06 17:39:51,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 17:39:51,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 17:39:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 17:39:51,763 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-08-06 17:39:51,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 17:39:51,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949609238] [2021-08-06 17:39:51,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949609238] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 17:39:51,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 17:39:51,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-06 17:39:51,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648762919] [2021-08-06 17:39:51,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-06 17:39:51,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 17:39:51,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-06 17:39:51,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 17:39:51,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:51,765 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 17:39:51,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 17:39:51,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:51,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:51,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-06 17:39:51,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:51,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:51,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:51,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 17:39:51,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-06 17:39:51,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-06 17:39:51,776 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 17:39:51,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 17:39:51,777 INFO L82 PathProgramCache]: Analyzing trace with hash 836479748, now seen corresponding path program 4 times [2021-08-06 17:39:51,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 17:39:51,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350813497] [2021-08-06 17:39:51,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 17:39:51,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 17:39:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 17:39:51,876 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 19 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-06 17:39:51,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 17:39:51,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350813497] [2021-08-06 17:39:51,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350813497] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 17:39:51,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934670152] [2021-08-06 17:39:51,877 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-06 17:39:51,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 17:39:51,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 17:39:51,878 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) [2021-08-06 17:39:51,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-06 17:39:51,947 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-06 17:39:51,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 17:39:51,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-06 17:39:51,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 17:39:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-06 17:39:52,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934670152] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 17:39:52,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 17:39:52,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2021-08-06 17:39:52,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200066237] [2021-08-06 17:39:52,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-06 17:39:52,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 17:39:52,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-06 17:39:52,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-08-06 17:39:52,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:52,234 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 17:39:52,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 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) [2021-08-06 17:39:52,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:52,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:52,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-06 17:39:52,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-06 17:39:52,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:52,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:52,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:52,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 17:39:52,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-06 17:39:52,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-06 17:39:52,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-06 17:39:52,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 17:39:52,728 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 17:39:52,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 17:39:52,729 INFO L82 PathProgramCache]: Analyzing trace with hash 56088444, now seen corresponding path program 5 times [2021-08-06 17:39:52,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 17:39:52,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201079726] [2021-08-06 17:39:52,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 17:39:52,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 17:39:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 17:39:52,837 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 38 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-08-06 17:39:52,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 17:39:52,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201079726] [2021-08-06 17:39:52,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201079726] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 17:39:52,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092486890] [2021-08-06 17:39:52,838 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-06 17:39:52,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 17:39:52,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 17:39:52,839 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) [2021-08-06 17:39:52,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-06 17:39:52,952 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-06 17:39:52,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 17:39:52,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-06 17:39:52,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 17:39:53,238 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-08-06 17:39:53,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092486890] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 17:39:53,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 17:39:53,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-08-06 17:39:53,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320199615] [2021-08-06 17:39:53,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-06 17:39:53,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 17:39:53,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-06 17:39:53,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-08-06 17:39:53,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:53,241 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 17:39:53,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 12 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) [2021-08-06 17:39:53,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:53,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:53,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-06 17:39:53,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-06 17:39:53,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-06 17:39:53,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:53,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:53,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:53,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 17:39:53,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-06 17:39:53,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-06 17:39:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-06 17:39:53,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-06 17:39:53,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 17:39:53,699 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 17:39:53,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 17:39:53,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1413553680, now seen corresponding path program 6 times [2021-08-06 17:39:53,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 17:39:53,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878543950] [2021-08-06 17:39:53,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 17:39:53,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 17:39:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 17:39:53,866 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 70 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-08-06 17:39:53,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 17:39:53,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878543950] [2021-08-06 17:39:53,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878543950] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 17:39:53,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404301722] [2021-08-06 17:39:53,867 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-06 17:39:53,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 17:39:53,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 17:39:53,867 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) [2021-08-06 17:39:53,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-06 17:39:53,973 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-08-06 17:39:53,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 17:39:53,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-06 17:39:53,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 17:39:54,408 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 64 proven. 31 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-08-06 17:39:54,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404301722] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 17:39:54,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 17:39:54,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2021-08-06 17:39:54,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887853838] [2021-08-06 17:39:54,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-08-06 17:39:54,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 17:39:54,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-08-06 17:39:54,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2021-08-06 17:39:54,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:54,410 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-06 17:39:54,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.6296296296296298) internal successors, (98), 26 states have internal predecessors, (98), 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) [2021-08-06 17:39:54,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:54,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:54,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-06 17:39:54,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-06 17:39:54,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-06 17:39:54,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-06 17:39:54,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-06 17:39:54,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:54,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 17:39:54,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 17:39:54,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-06 17:39:54,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-06 17:39:54,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-06 17:39:54,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-06 17:39:54,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-06 17:39:55,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 17:39:55,147 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 17:39:55,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 17:39:55,148 INFO L82 PathProgramCache]: Analyzing trace with hash -2140226472, now seen corresponding path program 7 times [2021-08-06 17:39:55,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 17:39:55,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101327209] [2021-08-06 17:39:55,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 17:39:55,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 17:39:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 17:41:35,947 WARN L207 SmtUtils]: Spent 1.60 m on a formula simplification. DAG size of input: 153 DAG size of output: 115 [2021-08-06 17:44:45,732 WARN L207 SmtUtils]: Spent 1.58 m on a formula simplification. DAG size of input: 153 DAG size of output: 115 Received shutdown request... [2021-08-06 17:54:33,851 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 [2021-08-06 17:54:33,868 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 [2021-08-06 17:54:33,868 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-06 17:54:33,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-06 17:54:33,869 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 69 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-3-2-30-5-31-5-16-5-16-5-16-5-13-5-13-5-12-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-8-5-7-4-7-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-3-6-3-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-73-15-31-16-16-16-16-13-16-13-13-12-13-11-12-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-8-11-7-8-7-7-6-7-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-3-6-3-3-2-2-1 context. [2021-08-06 17:54:33,870 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 17:54:33,870 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 17:54:33,870 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 17:54:33,875 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 17:54:33,875 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 17:54:33,876 INFO L202 PluginConnector]: Adding new model three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 05:54:33 BasicIcfg [2021-08-06 17:54:33,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 17:54:33,881 INFO L168 Benchmark]: Toolchain (without parser) took 884819.68 ms. Allocated memory was 197.1 MB in the beginning and 949.0 MB in the end (delta: 751.8 MB). Free memory was 176.8 MB in the beginning and 593.3 MB in the end (delta: -416.5 MB). Peak memory consumption was 600.8 MB. Max. memory is 8.0 GB. [2021-08-06 17:54:33,881 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 197.1 MB. Free memory was 178.0 MB in the beginning and 178.0 MB in the end (delta: 75.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 17:54:33,881 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.83 ms. Allocated memory is still 197.1 MB. Free memory was 176.7 MB in the beginning and 175.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-06 17:54:33,881 INFO L168 Benchmark]: Boogie Preprocessor took 21.11 ms. Allocated memory is still 197.1 MB. Free memory was 175.2 MB in the beginning and 174.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-06 17:54:33,881 INFO L168 Benchmark]: RCFGBuilder took 284.62 ms. Allocated memory is still 197.1 MB. Free memory was 174.1 MB in the beginning and 159.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-06 17:54:33,881 INFO L168 Benchmark]: TraceAbstraction took 884490.01 ms. Allocated memory was 197.1 MB in the beginning and 949.0 MB in the end (delta: 751.8 MB). Free memory was 158.6 MB in the beginning and 593.3 MB in the end (delta: -434.7 MB). Peak memory consumption was 582.9 MB. Max. memory is 8.0 GB. [2021-08-06 17:54:33,881 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 0.09 ms. Allocated memory is still 197.1 MB. Free memory was 178.0 MB in the beginning and 178.0 MB in the end (delta: 75.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.83 ms. Allocated memory is still 197.1 MB. Free memory was 176.7 MB in the beginning and 175.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 21.11 ms. Allocated memory is still 197.1 MB. Free memory was 175.2 MB in the beginning and 174.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 284.62 ms. Allocated memory is still 197.1 MB. Free memory was 174.1 MB in the beginning and 159.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 884490.01 ms. Allocated memory was 197.1 MB in the beginning and 949.0 MB in the end (delta: 751.8 MB). Free memory was 158.6 MB in the beginning and 593.3 MB in the end (delta: -434.7 MB). Peak memory consumption was 582.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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 69 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-3-2-30-5-31-5-16-5-16-5-16-5-13-5-13-5-12-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-8-5-7-4-7-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-3-6-3-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-73-15-31-16-16-16-16-13-16-13-13-12-13-11-12-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-8-11-7-8-7-7-6-7-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-3-6-3-3-2-2-1 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 69 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-3-2-30-5-31-5-16-5-16-5-16-5-13-5-13-5-12-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-8-5-7-4-7-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-3-6-3-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-73-15-31-16-16-16-16-13-16-13-13-12-13-11-12-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-8-11-7-8-7-7-6-7-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-3-6-3-3-2-2-1 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 69 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-3-2-30-5-31-5-16-5-16-5-16-5-13-5-13-5-12-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-8-5-7-4-7-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-3-6-3-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-73-15-31-16-16-16-16-13-16-13-13-12-13-11-12-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-8-11-7-8-7-7-6-7-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-3-6-3-3-2-2-1 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 69 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-3-2-30-5-31-5-16-5-16-5-16-5-13-5-13-5-12-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-11-5-8-5-7-4-7-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-4-6-3-6-3-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-73-15-31-16-16-16-16-13-16-13-13-12-13-11-12-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-11-8-11-7-8-7-7-6-7-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-3-6-3-3-2-2-1 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: 884429.8ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 45.6ms, PartialOrderReductionTime: 1351.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=0, InterpolantAutomatonStates: 106, 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: 62.6ms SsaConstructionTime, 246.2ms SatisfiabilityAnalysisTime, 2256.3ms InterpolantComputationTime, 545 NumberOfCodeBlocks, 543 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 532 ConstructedInterpolants, 0 QuantifiedInterpolants, 1850 SizeOfPredicates, 8 NumberOfNonLiveVariables, 655 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 407/595 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