/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-07 23:18:19,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-07 23:18:19,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-07 23:18:19,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-07 23:18:19,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-07 23:18:19,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-07 23:18:19,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-07 23:18:19,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-07 23:18:19,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-07 23:18:19,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-07 23:18:19,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-07 23:18:19,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-07 23:18:19,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-07 23:18:19,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-07 23:18:19,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-07 23:18:19,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-07 23:18:19,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-07 23:18:19,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-07 23:18:19,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-07 23:18:19,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-07 23:18:19,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-07 23:18:19,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-07 23:18:19,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-07 23:18:19,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-07 23:18:19,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-07 23:18:19,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-07 23:18:19,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-07 23:18:19,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-07 23:18:19,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-07 23:18:19,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-07 23:18:19,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-07 23:18:19,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-07 23:18:19,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-07 23:18:19,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-07 23:18:19,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-07 23:18:19,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-07 23:18:19,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-07 23:18:19,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-07 23:18:19,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-07 23:18:19,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-07 23:18:19,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-07 23:18:19,146 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-Lockstep.epf [2021-08-07 23:18:19,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-07 23:18:19,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-07 23:18:19,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-07 23:18:19,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-07 23:18:19,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-07 23:18:19,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-07 23:18:19,171 INFO L138 SettingsManager]: * Use SBE=true [2021-08-07 23:18:19,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-07 23:18:19,172 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-07 23:18:19,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-07 23:18:19,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-07 23:18:19,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-07 23:18:19,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-07 23:18:19,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-07 23:18:19,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-07 23:18:19,173 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-07 23:18:19,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-07 23:18:19,173 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-07 23:18:19,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-07 23:18:19,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-07 23:18:19,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-07 23:18:19,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-07 23:18:19,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-07 23:18:19,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 23:18:19,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-07 23:18:19,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-07 23:18:19,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-07 23:18:19,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-07 23:18:19,175 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-08-07 23:18:19,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-07 23:18:19,175 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-07 23:18:19,175 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-07 23:18:19,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-07 23:18:19,175 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-08-07 23:18:19,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-07 23:18:19,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-07 23:18:19,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-07 23:18:19,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-07 23:18:19,537 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-07 23:18:19,539 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-07 23:18:19,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl [2021-08-07 23:18:19,539 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl' [2021-08-07 23:18:19,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-07 23:18:19,568 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-07 23:18:19,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-07 23:18:19,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-07 23:18:19,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-07 23:18:19,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 11:18:19" (1/1) ... [2021-08-07 23:18:19,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 11:18:19" (1/1) ... [2021-08-07 23:18:19,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-07 23:18:19,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-07 23:18:19,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-07 23:18:19,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-07 23:18:19,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 11:18:19" (1/1) ... [2021-08-07 23:18:19,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 11:18:19" (1/1) ... [2021-08-07 23:18:19,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 11:18:19" (1/1) ... [2021-08-07 23:18:19,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 11:18:19" (1/1) ... [2021-08-07 23:18:19,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 11:18:19" (1/1) ... [2021-08-07 23:18:19,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 11:18:19" (1/1) ... [2021-08-07 23:18:19,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 11:18:19" (1/1) ... [2021-08-07 23:18:19,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-07 23:18:19,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-07 23:18:19,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-07 23:18:19,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-07 23:18:19,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 11:18:19" (1/1) ... [2021-08-07 23:18:19,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 23:18:19,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 23:18:19,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-07 23:18:19,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-07 23:18:19,676 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-07 23:18:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-07 23:18:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-07 23:18:19,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-07 23:18:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-07 23:18:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-07 23:18:19,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-07 23:18:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-07 23:18:19,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-07 23:18:19,679 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-07 23:18:19,895 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-07 23:18:19,895 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-07 23:18:19,897 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 11:18:19 BoogieIcfgContainer [2021-08-07 23:18:19,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-07 23:18:19,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-07 23:18:19,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-07 23:18:19,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-07 23:18:19,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 11:18:19" (1/2) ... [2021-08-07 23:18:19,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb55c6 and model type counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 11:18:19, skipping insertion in model container [2021-08-07 23:18:19,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 11:18:19" (2/2) ... [2021-08-07 23:18:19,903 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-fun.wvr.bpl [2021-08-07 23:18:19,906 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-07 23:18:19,906 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-07 23:18:19,906 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-07 23:18:19,906 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-07 23:18:19,973 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-08-07 23:18:20,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-07 23:18:20,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 23:18:20,029 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-07 23:18:20,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-08-07 23:18:20,069 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-07 23:18:20,076 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-07 23:18:20,076 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-07 23:18:20,203 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 23:18:20,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 23:18:20,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1738436835, now seen corresponding path program 1 times [2021-08-07 23:18:20,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 23:18:20,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031163566] [2021-08-07 23:18:20,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 23:18:20,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 23:18:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 23:18:20,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 23:18:20,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 23:18:20,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031163566] [2021-08-07 23:18:20,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031163566] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:20,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342118492] [2021-08-07 23:18:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 23:18:20,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:18:20,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 23:18:20,432 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 23:18:20,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-07 23:18:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 23:18:20,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-07 23:18:20,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 23:18:20,644 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 [2021-08-07 23:18:20,731 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 [2021-08-07 23:18:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 23:18:20,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342118492] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:20,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 23:18:20,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-07 23:18:20,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659675077] [2021-08-07 23:18:20,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 23:18:20,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 23:18:20,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 23:18:20,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 23:18:20,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:20,820 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 23:18:20,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2021-08-07 23:18:20,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:20,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 23:18:20,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-07 23:18:21,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-08-07 23:18:21,108 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 23:18:21,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 23:18:21,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1296880869, now seen corresponding path program 2 times [2021-08-07 23:18:21,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 23:18:21,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212033997] [2021-08-07 23:18:21,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 23:18:21,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 23:18:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 23:18:21,270 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 23:18:21,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 23:18:21,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212033997] [2021-08-07 23:18:21,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212033997] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:21,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89386984] [2021-08-07 23:18:21,272 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 23:18:21,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:18:21,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 23:18:21,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 23:18:21,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-07 23:18:21,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 23:18:21,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 23:18:21,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-07 23:18:21,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 23:18:21,688 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 23:18:21,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89386984] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:21,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 23:18:21,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-08-07 23:18:21,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764794518] [2021-08-07 23:18:21,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-07 23:18:21,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 23:18:21,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-07 23:18:21,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-08-07 23:18:21,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:21,691 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 23:18:21,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 23:18:21,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 23:18:21,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 23:18:21,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 23:18:22,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-07 23:18:22,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:18:22,185 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 23:18:22,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 23:18:22,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1059802139, now seen corresponding path program 3 times [2021-08-07 23:18:22,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 23:18:22,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169014330] [2021-08-07 23:18:22,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 23:18:22,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 23:18:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 23:18:22,351 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 23:18:22,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 23:18:22,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169014330] [2021-08-07 23:18:22,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169014330] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:22,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422032446] [2021-08-07 23:18:22,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 23:18:22,352 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:18:22,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 23:18:22,353 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 23:18:22,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-07 23:18:22,412 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-08-07 23:18:22,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 23:18:22,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-07 23:18:22,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 23:18:22,939 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 23:18:22,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422032446] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:22,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 23:18:22,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-08-07 23:18:22,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328826666] [2021-08-07 23:18:22,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-07 23:18:22,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 23:18:22,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-07 23:18:22,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2021-08-07 23:18:22,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:22,942 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 23:18:22,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 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) [2021-08-07 23:18:22,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 23:18:22,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 23:18:22,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:23,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 23:18:23,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 23:18:23,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 23:18:23,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-08-07 23:18:23,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:18:23,565 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 23:18:23,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 23:18:23,566 INFO L82 PathProgramCache]: Analyzing trace with hash 142424739, now seen corresponding path program 4 times [2021-08-07 23:18:23,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 23:18:23,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559383165] [2021-08-07 23:18:23,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 23:18:23,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 23:18:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 23:18:23,665 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 23:18:23,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 23:18:23,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559383165] [2021-08-07 23:18:23,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559383165] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:23,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117107100] [2021-08-07 23:18:23,666 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 23:18:23,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:18:23,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 23:18:23,679 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 23:18:23,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-07 23:18:23,772 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 23:18:23,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 23:18:23,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 27 conjunts are in the unsatisfiable core [2021-08-07 23:18:23,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 23:18:24,006 INFO L354 Elim1Store]: treesize reduction 16, result has 67.3 percent of original size [2021-08-07 23:18:24,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 65 [2021-08-07 23:18:26,893 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-07 23:18:26,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 103 treesize of output 96 [2021-08-07 23:18:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 23:18:26,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117107100] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:26,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 23:18:26,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-08-07 23:18:26,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908587372] [2021-08-07 23:18:26,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-07 23:18:26,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 23:18:26,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-07 23:18:26,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-08-07 23:18:26,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:26,930 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 23:18:26,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 23:18:26,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 23:18:26,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 23:18:26,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 23:18:26,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 23:18:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 23:18:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 23:18:27,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 23:18:27,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-07 23:18:27,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:18:27,223 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 23:18:27,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 23:18:27,224 INFO L82 PathProgramCache]: Analyzing trace with hash 265616809, now seen corresponding path program 5 times [2021-08-07 23:18:27,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 23:18:27,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549359941] [2021-08-07 23:18:27,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 23:18:27,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 23:18:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 23:18:27,473 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 34 proven. 29 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 23:18:27,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 23:18:27,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549359941] [2021-08-07 23:18:27,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549359941] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:27,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681219695] [2021-08-07 23:18:27,474 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-07 23:18:27,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:18:27,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 23:18:27,479 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 23:18:27,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-07 23:18:27,614 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-08-07 23:18:27,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 23:18:27,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-07 23:18:27,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 23:18:28,285 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 23:18:28,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681219695] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:28,286 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 23:18:28,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-08-07 23:18:28,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779364952] [2021-08-07 23:18:28,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-07 23:18:28,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 23:18:28,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-07 23:18:28,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2021-08-07 23:18:28,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:28,288 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 23:18:28,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 27 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 23:18:28,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 23:18:28,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 23:18:28,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 23:18:28,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 23:18:28,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 23:18:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 23:18:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 23:18:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 23:18:28,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 23:18:28,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-07 23:18:29,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:18:29,103 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 23:18:29,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 23:18:29,103 INFO L82 PathProgramCache]: Analyzing trace with hash 2004278115, now seen corresponding path program 6 times [2021-08-07 23:18:29,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 23:18:29,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670733984] [2021-08-07 23:18:29,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 23:18:29,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 23:18:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 23:18:29,242 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 23:18:29,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 23:18:29,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670733984] [2021-08-07 23:18:29,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670733984] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:29,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233759303] [2021-08-07 23:18:29,242 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-07 23:18:29,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:18:29,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 23:18:29,244 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 23:18:29,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-07 23:18:29,420 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-08-07 23:18:29,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 23:18:29,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 49 conjunts are in the unsatisfiable core [2021-08-07 23:18:29,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 23:18:31,046 INFO L354 Elim1Store]: treesize reduction 1043, result has 19.6 percent of original size [2021-08-07 23:18:31,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 19 new quantified variables, introduced 78 case distinctions, treesize of input 224 treesize of output 343 [2021-08-07 23:18:31,224 INFO L354 Elim1Store]: treesize reduction 53, result has 76.4 percent of original size [2021-08-07 23:18:31,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 14 new quantified variables, introduced 28 case distinctions, treesize of input 492 treesize of output 289 [2021-08-07 23:18:32,303 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 23:18:32,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233759303] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:32,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 23:18:32,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-08-07 23:18:32,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509874186] [2021-08-07 23:18:32,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-07 23:18:32,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 23:18:32,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-07 23:18:32,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2021-08-07 23:18:32,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:32,305 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 23:18:32,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 23:18:32,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 23:18:32,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 23:18:32,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 23:18:32,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 23:18:32,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 23:18:32,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:32,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 23:18:32,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 23:18:32,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 23:18:32,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 23:18:32,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 23:18:32,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-07 23:18:32,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-07 23:18:32,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:18:32,633 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 23:18:32,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 23:18:32,633 INFO L82 PathProgramCache]: Analyzing trace with hash -482515607, now seen corresponding path program 7 times [2021-08-07 23:18:32,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 23:18:32,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562363271] [2021-08-07 23:18:32,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 23:18:32,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 23:18:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 23:18:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 68 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 23:18:32,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 23:18:32,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562363271] [2021-08-07 23:18:32,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562363271] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:32,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375965794] [2021-08-07 23:18:32,962 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-07 23:18:32,962 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:18:32,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 23:18:32,963 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 23:18:32,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-07 23:18:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 23:18:33,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-07 23:18:33,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 23:18:34,112 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 64 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 23:18:34,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375965794] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:34,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 23:18:34,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21] total 39 [2021-08-07 23:18:34,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012540886] [2021-08-07 23:18:34,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-08-07 23:18:34,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 23:18:34,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-08-07 23:18:34,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=1290, Unknown=0, NotChecked=0, Total=1560 [2021-08-07 23:18:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:34,114 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 23:18:34,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.225) internal successors, (89), 39 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 23:18:34,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 23:18:34,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 23:18:34,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 23:18:34,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 23:18:34,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 23:18:34,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-07 23:18:34,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 23:18:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 23:18:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 23:18:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 23:18:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 23:18:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 23:18:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-07 23:18:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-07 23:18:35,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-07 23:18:35,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-08-07 23:18:35,227 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 23:18:35,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 23:18:35,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1253338333, now seen corresponding path program 8 times [2021-08-07 23:18:35,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 23:18:35,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130705279] [2021-08-07 23:18:35,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 23:18:35,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 23:18:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 23:18:35,432 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 23:18:35,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 23:18:35,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130705279] [2021-08-07 23:18:35,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130705279] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 23:18:35,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62689074] [2021-08-07 23:18:35,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 23:18:35,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:18:35,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 23:18:35,434 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 23:18:35,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-07 23:18:35,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 23:18:35,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 23:18:35,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 63 conjunts are in the unsatisfiable core [2021-08-07 23:18:35,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 23:18:36,760 INFO L354 Elim1Store]: treesize reduction 160, result has 55.7 percent of original size [2021-08-07 23:18:36,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 19 new quantified variables, introduced 45 case distinctions, treesize of input 274 treesize of output 281 Received shutdown request... [2021-08-07 23:30:48,051 WARN L223 SmtUtils]: Removed 1 from assertion stack [2021-08-07 23:30:48,053 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-07 23:30:48,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-07 23:30:48,080 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 23:30:48,088 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 23:30:48,091 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 23:30:48,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 23:30:48,254 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 55 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 0ms.. [2021-08-07 23:30:48,255 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-07 23:30:48,256 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-07 23:30:48,262 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-07 23:30:48,262 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-07 23:30:48,264 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.08 11:30:48 BasicIcfg [2021-08-07 23:30:48,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-07 23:30:48,264 INFO L168 Benchmark]: Toolchain (without parser) took 748695.90 ms. Allocated memory was 181.4 MB in the beginning and 676.3 MB in the end (delta: 494.9 MB). Free memory was 160.9 MB in the beginning and 591.7 MB in the end (delta: -430.8 MB). Peak memory consumption was 421.7 MB. Max. memory is 8.0 GB. [2021-08-07 23:30:48,264 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 181.4 MB. Free memory is still 161.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-07 23:30:48,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.20 ms. Allocated memory is still 181.4 MB. Free memory was 160.7 MB in the beginning and 159.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-07 23:30:48,265 INFO L168 Benchmark]: Boogie Preprocessor took 11.42 ms. Allocated memory is still 181.4 MB. Free memory was 159.3 MB in the beginning and 158.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-07 23:30:48,265 INFO L168 Benchmark]: RCFGBuilder took 292.65 ms. Allocated memory is still 181.4 MB. Free memory was 158.2 MB in the beginning and 145.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-07 23:30:48,265 INFO L168 Benchmark]: TraceAbstraction took 748365.36 ms. Allocated memory was 181.4 MB in the beginning and 676.3 MB in the end (delta: 494.9 MB). Free memory was 145.5 MB in the beginning and 591.7 MB in the end (delta: -446.2 MB). Peak memory consumption was 405.9 MB. Max. memory is 8.0 GB. [2021-08-07 23:30:48,265 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 0.12 ms. Allocated memory is still 181.4 MB. Free memory is still 161.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.20 ms. Allocated memory is still 181.4 MB. Free memory was 160.7 MB in the beginning and 159.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.42 ms. Allocated memory is still 181.4 MB. Free memory was 159.3 MB in the beginning and 158.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 292.65 ms. Allocated memory is still 181.4 MB. Free memory was 158.2 MB in the beginning and 145.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 748365.36 ms. Allocated memory was 181.4 MB in the beginning and 676.3 MB in the end (delta: 494.9 MB). Free memory was 145.5 MB in the beginning and 591.7 MB in the end (delta: -446.2 MB). Peak memory consumption was 405.9 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: 645, positive: 442, positive conditional: 351, positive unconditional: 91, negative: 203, negative conditional: 201, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 448, positive: 442, positive conditional: 351, positive unconditional: 91, negative: 6, negative conditional: 4, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 448, positive: 442, positive conditional: 351, positive unconditional: 91, negative: 6, negative conditional: 4, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 461, positive: 442, positive conditional: 336, positive unconditional: 106, negative: 19, negative conditional: 13, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 461, positive: 442, positive conditional: 221, positive unconditional: 221, negative: 19, negative conditional: 6, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 461, positive: 442, positive conditional: 221, positive unconditional: 221, negative: 19, negative conditional: 6, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 86, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 5, negative conditional: 3, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 86, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 3, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 66, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 66, negative conditional: 13, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 461, positive: 361, positive conditional: 221, positive unconditional: 140, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 86, unknown conditional: 3, unknown unconditional: 83] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 5, Negative conditional cache size: 3, Negative unconditional cache size: 2, Eliminated conditions: 122, Maximal queried relation: 6, Independence queries for same thread: 197 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 79, Number of persistent set computation: 21, Number of trivial persistent sets: 14, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 93, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 645, positive: 442, positive conditional: 351, positive unconditional: 91, negative: 203, negative conditional: 201, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 448, positive: 442, positive conditional: 351, positive unconditional: 91, negative: 6, negative conditional: 4, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 448, positive: 442, positive conditional: 351, positive unconditional: 91, negative: 6, negative conditional: 4, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 461, positive: 442, positive conditional: 336, positive unconditional: 106, negative: 19, negative conditional: 13, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 461, positive: 442, positive conditional: 221, positive unconditional: 221, negative: 19, negative conditional: 6, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 461, positive: 442, positive conditional: 221, positive unconditional: 221, negative: 19, negative conditional: 6, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 86, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 5, negative conditional: 3, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 86, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 3, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 66, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 66, negative conditional: 13, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 461, positive: 361, positive conditional: 221, positive unconditional: 140, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 86, unknown conditional: 3, unknown unconditional: 83] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 5, Negative conditional cache size: 3, Negative unconditional cache size: 2, Eliminated conditions: 122, Maximal queried relation: 6, Independence queries for same thread: 197 - 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: 53]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 55 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 0ms.. - TimeoutResultAtElement [Line: 48]: 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 55 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 0ms.. - TimeoutResultAtElement [Line: 48]: 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 55 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 0ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 748241.9ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.0ms, PartialOrderReductionTime: 2558.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 103, 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: 45.1ms SsaConstructionTime, 221.7ms SatisfiabilityAnalysisTime, 9967.0ms InterpolantComputationTime, 444 NumberOfCodeBlocks, 444 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 430 ConstructedInterpolants, 7 QuantifiedInterpolants, 6999 SizeOfPredicates, 22 NumberOfNonLiveVariables, 630 ConjunctsInSsa, 139 ConjunctsInUnsatCore, 14 InterpolantComputations, 0 PerfectInterpolantSequences, 221/752 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