/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-23 04:50:34,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-23 04:50:34,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-23 04:50:34,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-23 04:50:34,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-08-23 04:50:34,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-23 04:50:34,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-23 04:50:34,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-23 04:50:34,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-23 04:50:34,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-23 04:50:34,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-23 04:50:34,642 INFO L138 SettingsManager]: * Use SBE=true [2021-08-23 04:50:34,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-23 04:50:34,643 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-23 04:50:34,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-23 04:50:34,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-23 04:50:34,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-23 04:50:34,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-23 04:50:34,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-23 04:50:34,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-23 04:50:34,645 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-23 04:50:34,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-23 04:50:34,645 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-23 04:50:34,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-23 04:50:34,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-23 04:50:34,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-23 04:50:34,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-23 04:50:34,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-23 04:50:34,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-23 04:50:34,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-23 04:50:34,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-23 04:50:34,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-23 04:50:34,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-23 04:50:34,647 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-08-23 04:50:34,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-23 04:50:34,647 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-23 04:50:34,647 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-23 04:50:34,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-23 04:50:34,648 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-08-23 04:50:34,648 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-08-23 04:50:34,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-23 04:50:34,648 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-23 04:50:34,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-23 04:50:35,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-23 04:50:35,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-23 04:50:35,011 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-23 04:50:35,012 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-23 04:50:35,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl [2021-08-23 04:50:35,013 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl' [2021-08-23 04:50:35,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-23 04:50:35,045 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-23 04:50:35,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-23 04:50:35,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-23 04:50:35,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-23 04:50:35,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 04:50:35" (1/1) ... [2021-08-23 04:50:35,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 04:50:35" (1/1) ... [2021-08-23 04:50:35,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-23 04:50:35,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-23 04:50:35,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-23 04:50:35,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-23 04:50:35,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 04:50:35" (1/1) ... [2021-08-23 04:50:35,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 04:50:35" (1/1) ... [2021-08-23 04:50:35,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 04:50:35" (1/1) ... [2021-08-23 04:50:35,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 04:50:35" (1/1) ... [2021-08-23 04:50:35,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 04:50:35" (1/1) ... [2021-08-23 04:50:35,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 04:50:35" (1/1) ... [2021-08-23 04:50:35,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 04:50:35" (1/1) ... [2021-08-23 04:50:35,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-23 04:50:35,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-23 04:50:35,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-23 04:50:35,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-23 04:50:35,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 04:50:35" (1/1) ... [2021-08-23 04:50:35,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-23 04:50:35,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 04:50:35,142 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) [2021-08-23 04:50:35,168 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 [2021-08-23 04:50:35,194 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-23 04:50:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-23 04:50:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-23 04:50:35,194 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-23 04:50:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-23 04:50:35,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-23 04:50:35,196 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-23 04:50:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-23 04:50:35,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-23 04:50:35,197 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-23 04:50:35,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-23 04:50:35,388 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-23 04:50:35,390 INFO L202 PluginConnector]: Adding new model inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 04:50:35 BoogieIcfgContainer [2021-08-23 04:50:35,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-23 04:50:35,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-23 04:50:35,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-23 04:50:35,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-23 04:50:35,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 04:50:35" (1/2) ... [2021-08-23 04:50:35,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0fd956 and model type inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 04:50:35, skipping insertion in model container [2021-08-23 04:50:35,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 04:50:35" (2/2) ... [2021-08-23 04:50:35,397 INFO L111 eAbstractionObserver]: Analyzing ICFG inc-subseq-array.wvr.bpl [2021-08-23 04:50:35,401 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-23 04:50:35,402 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-23 04:50:35,402 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-23 04:50:35,402 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-23 04:50:35,430 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-08-23 04:50:35,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-23 04:50:35,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 04:50:35,506 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) [2021-08-23 04:50:35,541 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 [2021-08-23 04:50:35,567 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-23 04:50:35,574 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 [2021-08-23 04:50:35,574 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-23 04:50:35,761 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-23 04:50:35,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 04:50:35,766 INFO L82 PathProgramCache]: Analyzing trace with hash -395297103, now seen corresponding path program 1 times [2021-08-23 04:50:35,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 04:50:35,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87561807] [2021-08-23 04:50:35,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 04:50:35,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 04:50:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 04:50:35,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-23 04:50:35,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 04:50:35,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87561807] [2021-08-23 04:50:35,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87561807] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-23 04:50:35,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-23 04:50:35,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-23 04:50:35,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629428845] [2021-08-23 04:50:35,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-23 04:50:35,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 04:50:35,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-23 04:50:35,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-23 04:50:35,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 04:50:35,969 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 04:50:35,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-08-23 04:50:35,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 04:50:36,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:36,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-23 04:50:36,001 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-23 04:50:36,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 04:50:36,005 INFO L82 PathProgramCache]: Analyzing trace with hash 2128314804, now seen corresponding path program 1 times [2021-08-23 04:50:36,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 04:50:36,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295708129] [2021-08-23 04:50:36,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 04:50:36,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 04:50:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 04:50:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-23 04:50:36,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 04:50:36,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295708129] [2021-08-23 04:50:36,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295708129] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-23 04:50:36,068 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-23 04:50:36,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-23 04:50:36,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7599834] [2021-08-23 04:50:36,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-23 04:50:36,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 04:50:36,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-23 04:50:36,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-23 04:50:36,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 04:50:36,071 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 04:50:36,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-23 04:50:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 04:50:36,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:36,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-23 04:50:36,114 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-23 04:50:36,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 04:50:36,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1790188498, now seen corresponding path program 1 times [2021-08-23 04:50:36,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 04:50:36,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856487376] [2021-08-23 04:50:36,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 04:50:36,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 04:50:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 04:50:36,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-23 04:50:36,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 04:50:36,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856487376] [2021-08-23 04:50:36,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856487376] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 04:50:36,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489888867] [2021-08-23 04:50:36,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 04:50:36,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 04:50:36,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 04:50:36,349 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) [2021-08-23 04:50:36,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-23 04:50:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 04:50:36,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-23 04:50:36,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 04:50:36,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-08-23 04:50:36,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-08-23 04:50:36,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-23 04:50:36,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489888867] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 04:50:36,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 04:50:36,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2021-08-23 04:50:36,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009299259] [2021-08-23 04:50:36,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-23 04:50:36,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 04:50:36,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-23 04:50:36,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-08-23 04:50:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 04:50:36,747 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 04:50:36,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 11 states have internal predecessors, (33), 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) [2021-08-23 04:50:36,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:36,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:36,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 04:50:36,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:36,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:36,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-23 04:50:36,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-23 04:50:37,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-08-23 04:50:37,057 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-23 04:50:37,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 04:50:37,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1404692053, now seen corresponding path program 2 times [2021-08-23 04:50:37,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 04:50:37,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962322070] [2021-08-23 04:50:37,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 04:50:37,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 04:50:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 04:50:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-23 04:50:37,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 04:50:37,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962322070] [2021-08-23 04:50:37,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962322070] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 04:50:37,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174525256] [2021-08-23 04:50:37,146 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-23 04:50:37,146 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 04:50:37,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 04:50:37,149 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) [2021-08-23 04:50:37,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-23 04:50:37,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-23 04:50:37,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-23 04:50:37,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-23 04:50:37,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 04:50:37,343 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-23 04:50:37,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174525256] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-23 04:50:37,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-23 04:50:37,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-08-23 04:50:37,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380019016] [2021-08-23 04:50:37,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-23 04:50:37,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 04:50:37,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-23 04:50:37,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-23 04:50:37,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 04:50:37,347 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 04:50:37,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-08-23 04:50:37,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:37,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:37,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-23 04:50:37,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 04:50:37,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:37,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:37,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-23 04:50:37,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-23 04:50:37,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-23 04:50:37,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 04:50:37,631 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-23 04:50:37,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 04:50:37,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1800003988, now seen corresponding path program 3 times [2021-08-23 04:50:37,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 04:50:37,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187817232] [2021-08-23 04:50:37,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 04:50:37,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 04:50:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 04:50:37,769 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-08-23 04:50:37,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 04:50:37,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187817232] [2021-08-23 04:50:37,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187817232] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 04:50:37,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000356987] [2021-08-23 04:50:37,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-23 04:50:37,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 04:50:37,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 04:50:37,772 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) [2021-08-23 04:50:37,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-23 04:50:37,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-08-23 04:50:37,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-23 04:50:37,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-23 04:50:37,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 04:50:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-08-23 04:50:38,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000356987] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-23 04:50:38,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-23 04:50:38,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-08-23 04:50:38,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972001329] [2021-08-23 04:50:38,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-23 04:50:38,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 04:50:38,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-23 04:50:38,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-23 04:50:38,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 04:50:38,052 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 04:50:38,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 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) [2021-08-23 04:50:38,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:38,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:38,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-23 04:50:38,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-23 04:50:38,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 04:50:38,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:38,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:38,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-23 04:50:38,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-23 04:50:38,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-23 04:50:38,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-23 04:50:38,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 04:50:38,341 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-23 04:50:38,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 04:50:38,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1477413935, now seen corresponding path program 4 times [2021-08-23 04:50:38,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 04:50:38,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494221408] [2021-08-23 04:50:38,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 04:50:38,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 04:50:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 04:50:38,801 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-23 04:50:38,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 04:50:38,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494221408] [2021-08-23 04:50:38,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494221408] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 04:50:38,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084996948] [2021-08-23 04:50:38,802 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-23 04:50:38,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 04:50:38,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 04:50:38,803 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) [2021-08-23 04:50:38,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-23 04:50:38,885 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-23 04:50:38,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-23 04:50:38,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-23 04:50:38,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 04:50:39,536 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-23 04:50:39,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 36 [2021-08-23 04:50:39,681 INFO L354 Elim1Store]: treesize reduction 30, result has 9.1 percent of original size [2021-08-23 04:50:39,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 23 [2021-08-23 04:50:39,723 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-23 04:50:39,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084996948] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 04:50:39,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 04:50:39,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 22 [2021-08-23 04:50:39,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337860170] [2021-08-23 04:50:39,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-23 04:50:39,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 04:50:39,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-23 04:50:39,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2021-08-23 04:50:39,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 04:50:39,727 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 04:50:39,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 22 states have internal predecessors, (49), 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) [2021-08-23 04:50:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-23 04:50:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-23 04:50:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-23 04:50:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 04:50:40,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:40,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 04:50:40,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-23 04:50:40,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-23 04:50:40,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-23 04:50:40,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-23 04:50:40,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-23 04:50:40,269 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-23 04:50:40,269 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-23 04:50:40,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-23 04:50:40,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 04:50:40,497 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-23 04:50:40,497 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-23 04:50:40,499 INFO L202 PluginConnector]: Adding new model inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.08 04:50:40 BasicIcfg [2021-08-23 04:50:40,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-23 04:50:40,500 INFO L168 Benchmark]: Toolchain (without parser) took 5454.25 ms. Allocated memory was 177.2 MB in the beginning and 218.1 MB in the end (delta: 40.9 MB). Free memory was 158.5 MB in the beginning and 92.6 MB in the end (delta: 65.8 MB). Peak memory consumption was 107.3 MB. Max. memory is 8.0 GB. [2021-08-23 04:50:40,500 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 177.2 MB. Free memory is still 159.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-23 04:50:40,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.87 ms. Allocated memory is still 177.2 MB. Free memory was 158.3 MB in the beginning and 156.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-23 04:50:40,501 INFO L168 Benchmark]: Boogie Preprocessor took 25.41 ms. Allocated memory is still 177.2 MB. Free memory was 156.9 MB in the beginning and 155.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-23 04:50:40,501 INFO L168 Benchmark]: RCFGBuilder took 278.26 ms. Allocated memory is still 177.2 MB. Free memory was 155.9 MB in the beginning and 142.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-23 04:50:40,502 INFO L168 Benchmark]: TraceAbstraction took 5107.14 ms. Allocated memory was 177.2 MB in the beginning and 218.1 MB in the end (delta: 40.9 MB). Free memory was 142.3 MB in the beginning and 92.6 MB in the end (delta: 49.7 MB). Peak memory consumption was 91.6 MB. Max. memory is 8.0 GB. [2021-08-23 04:50:40,503 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 177.2 MB. Free memory is still 159.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 37.87 ms. Allocated memory is still 177.2 MB. Free memory was 158.3 MB in the beginning and 156.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.41 ms. Allocated memory is still 177.2 MB. Free memory was 156.9 MB in the beginning and 155.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 278.26 ms. Allocated memory is still 177.2 MB. Free memory was 155.9 MB in the beginning and 142.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5107.14 ms. Allocated memory was 177.2 MB in the beginning and 218.1 MB in the end (delta: 40.9 MB). Free memory was 142.3 MB in the beginning and 92.6 MB in the end (delta: 49.7 MB). Peak memory consumption was 91.6 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: 1178, positive: 919, positive conditional: 730, positive unconditional: 189, negative: 259, negative conditional: 254, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 972, positive: 919, positive conditional: 730, positive unconditional: 189, negative: 53, negative conditional: 48, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 972, positive: 919, positive conditional: 730, positive unconditional: 189, negative: 53, negative conditional: 48, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1105, positive: 919, positive conditional: 596, positive unconditional: 323, negative: 186, negative conditional: 133, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1105, positive: 919, positive conditional: 534, positive unconditional: 385, negative: 186, negative conditional: 110, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1105, positive: 919, positive conditional: 534, positive unconditional: 385, negative: 186, negative conditional: 110, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 210, positive: 177, positive conditional: 18, positive unconditional: 159, negative: 33, negative conditional: 28, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 210, positive: 155, positive conditional: 0, positive unconditional: 155, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 55, positive: 22, positive conditional: 18, positive unconditional: 4, negative: 33, negative conditional: 28, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 175, positive: 87, positive conditional: 34, positive unconditional: 53, negative: 88, negative conditional: 55, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1105, positive: 742, positive conditional: 516, positive unconditional: 226, negative: 153, negative conditional: 82, negative unconditional: 71, unknown: 210, unknown conditional: 46, unknown unconditional: 164] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 177, Positive conditional cache size: 18, Positive unconditional cache size: 159, Negative cache size: 33, Negative conditional cache size: 28, Negative unconditional cache size: 5, Eliminated conditions: 85, Maximal queried relation: 6, Independence queries for same thread: 206 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 114, Number of persistent set computation: 34, Number of trivial persistent sets: 26, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 194, positive: 189, positive conditional: 0, positive unconditional: 189, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1178, positive: 919, positive conditional: 730, positive unconditional: 189, negative: 259, negative conditional: 254, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 972, positive: 919, positive conditional: 730, positive unconditional: 189, negative: 53, negative conditional: 48, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 972, positive: 919, positive conditional: 730, positive unconditional: 189, negative: 53, negative conditional: 48, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1105, positive: 919, positive conditional: 596, positive unconditional: 323, negative: 186, negative conditional: 133, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1105, positive: 919, positive conditional: 534, positive unconditional: 385, negative: 186, negative conditional: 110, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1105, positive: 919, positive conditional: 534, positive unconditional: 385, negative: 186, negative conditional: 110, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 210, positive: 177, positive conditional: 18, positive unconditional: 159, negative: 33, negative conditional: 28, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 210, positive: 155, positive conditional: 0, positive unconditional: 155, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 55, positive: 22, positive conditional: 18, positive unconditional: 4, negative: 33, negative conditional: 28, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 175, positive: 87, positive conditional: 34, positive unconditional: 53, negative: 88, negative conditional: 55, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1105, positive: 742, positive conditional: 516, positive unconditional: 226, negative: 153, negative conditional: 82, negative unconditional: 71, unknown: 210, unknown conditional: 46, unknown unconditional: 164] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 177, Positive conditional cache size: 18, Positive unconditional cache size: 159, Negative cache size: 33, Negative conditional cache size: 28, Negative unconditional cache size: 5, Eliminated conditions: 85, Maximal queried relation: 6, Independence queries for same thread: 206 - 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 - PositiveResult [Line: 62]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 41 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 5013.7ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.2ms, PartialOrderReductionTime: 982.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 42, 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: 34.7ms SsaConstructionTime, 191.2ms SatisfiabilityAnalysisTime, 2393.1ms InterpolantComputationTime, 288 NumberOfCodeBlocks, 279 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 278 ConstructedInterpolants, 11 QuantifiedInterpolants, 1332 SizeOfPredicates, 18 NumberOfNonLiveVariables, 253 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 105/143 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-23 04:50:40,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-08-23 04:50:40,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...