/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-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/vector-add.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 20:45:07,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 20:45:07,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 20:45:07,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-06 20:45:07,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-06 20:45:07,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-06 20:45:07,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-06 20:45:07,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-06 20:45:07,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-06 20:45:07,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-06 20:45:07,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-06 20:45:07,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-08-06 20:45:07,752 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-FA-NoLbe-Delay.epf [2021-08-06 20:45:07,778 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 20:45:07,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 20:45:07,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 20:45:07,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 20:45:07,780 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 20:45:07,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 20:45:07,780 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 20:45:07,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 20:45:07,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 20:45:07,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 20:45:07,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 20:45:07,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 20:45:07,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 20:45:07,781 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 20:45:07,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 20:45:07,781 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 20:45:07,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 20:45:07,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 20:45:07,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 20:45:07,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 20:45:07,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 20:45:07,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 20:45:07,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 20:45:07,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 20:45:07,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 20:45:07,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 20:45:07,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 20:45:07,782 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 20:45:07,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 20:45:07,783 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-06 20:45:07,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 20:45:08,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 20:45:08,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 20:45:08,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 20:45:08,052 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-06 20:45:08,053 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-06 20:45:08,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/vector-add.wvr.bpl [2021-08-06 20:45:08,054 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/vector-add.wvr.bpl' [2021-08-06 20:45:08,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 20:45:08,088 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-06 20:45:08,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 20:45:08,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 20:45:08,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 20:45:08,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:45:08" (1/1) ... [2021-08-06 20:45:08,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:45:08" (1/1) ... [2021-08-06 20:45:08,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 20:45:08,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 20:45:08,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 20:45:08,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 20:45:08,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:45:08" (1/1) ... [2021-08-06 20:45:08,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:45:08" (1/1) ... [2021-08-06 20:45:08,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:45:08" (1/1) ... [2021-08-06 20:45:08,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:45:08" (1/1) ... [2021-08-06 20:45:08,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:45:08" (1/1) ... [2021-08-06 20:45:08,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:45:08" (1/1) ... [2021-08-06 20:45:08,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:45:08" (1/1) ... [2021-08-06 20:45:08,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 20:45:08,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 20:45:08,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 20:45:08,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 20:45:08,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:45:08" (1/1) ... [2021-08-06 20:45:08,134 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 20:45:08,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 20:45:08,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-06 20:45:08,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-06 20:45:08,212 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-06 20:45:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-06 20:45:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-06 20:45:08,213 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-06 20:45:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-06 20:45:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-06 20:45:08,213 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-06 20:45:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 20:45:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 20:45:08,214 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-06 20:45:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-06 20:45:08,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-06 20:45:08,214 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-06 20:45:08,412 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 20:45:08,413 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-06 20:45:08,414 INFO L202 PluginConnector]: Adding new model vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 08:45:08 BoogieIcfgContainer [2021-08-06 20:45:08,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 20:45:08,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 20:45:08,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 20:45:08,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 20:45:08,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 08:45:08" (1/2) ... [2021-08-06 20:45:08,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57bd3ec8 and model type vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 08:45:08, skipping insertion in model container [2021-08-06 20:45:08,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 08:45:08" (2/2) ... [2021-08-06 20:45:08,419 INFO L111 eAbstractionObserver]: Analyzing ICFG vector-add.wvr.bpl [2021-08-06 20:45:08,422 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 20:45:08,422 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 20:45:08,422 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 20:45:08,422 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 20:45:08,481 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-08-06 20:45:08,509 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 20:45:08,513 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-06 20:45:08,513 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-06 20:45:08,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 80 states have (on average 1.7375) internal successors, (139), 112 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:08,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-06 20:45:08,597 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:45:08,597 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:45:08,598 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 20:45:08,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:45:08,602 INFO L82 PathProgramCache]: Analyzing trace with hash -230313036, now seen corresponding path program 1 times [2021-08-06 20:45:08,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:45:08,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865180297] [2021-08-06 20:45:08,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:45:08,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:45:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:45:08,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:45:08,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:45:08,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865180297] [2021-08-06 20:45:08,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865180297] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 20:45:08,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 20:45:08,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-06 20:45:08,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454303181] [2021-08-06 20:45:08,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-06 20:45:08,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:45:08,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-06 20:45:08,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 20:45:08,767 INFO L87 Difference]: Start difference. First operand has 113 states, 80 states have (on average 1.7375) internal successors, (139), 112 states have internal predecessors, (139), 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) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:08,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:45:08,798 INFO L93 Difference]: Finished difference Result 218 states and 270 transitions. [2021-08-06 20:45:08,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-06 20:45:08,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) Word has length 19 [2021-08-06 20:45:08,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:45:08,809 INFO L225 Difference]: With dead ends: 218 [2021-08-06 20:45:08,809 INFO L226 Difference]: Without dead ends: 65 [2021-08-06 20:45:08,811 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-06 20:45:08,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-08-06 20:45:08,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 46. [2021-08-06 20:45:08,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.6666666666666667) internal successors, (75), 45 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:08,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 75 transitions. [2021-08-06 20:45:08,844 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 75 transitions. Word has length 19 [2021-08-06 20:45:08,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:45:08,845 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 75 transitions. [2021-08-06 20:45:08,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 75 transitions. [2021-08-06 20:45:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-06 20:45:08,847 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:45:08,847 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:45:08,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 20:45:08,848 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 20:45:08,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:45:08,851 INFO L82 PathProgramCache]: Analyzing trace with hash -754493482, now seen corresponding path program 1 times [2021-08-06 20:45:08,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:45:08,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112821616] [2021-08-06 20:45:08,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:45:08,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:45:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:45:08,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-06 20:45:08,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:45:08,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112821616] [2021-08-06 20:45:08,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112821616] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 20:45:08,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 20:45:08,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-06 20:45:08,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126184030] [2021-08-06 20:45:08,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-06 20:45:08,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:45:08,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-06 20:45:08,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-06 20:45:08,938 INFO L87 Difference]: Start difference. First operand 46 states and 75 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:08,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:45:08,985 INFO L93 Difference]: Finished difference Result 56 states and 99 transitions. [2021-08-06 20:45:08,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-06 20:45:08,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) Word has length 21 [2021-08-06 20:45:08,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:45:08,987 INFO L225 Difference]: With dead ends: 56 [2021-08-06 20:45:08,987 INFO L226 Difference]: Without dead ends: 56 [2021-08-06 20:45:08,988 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-06 20:45:08,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-08-06 20:45:08,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2021-08-06 20:45:09,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.6875) internal successors, (81), 48 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:09,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 81 transitions. [2021-08-06 20:45:09,003 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 81 transitions. Word has length 21 [2021-08-06 20:45:09,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:45:09,003 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 81 transitions. [2021-08-06 20:45:09,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:09,003 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 81 transitions. [2021-08-06 20:45:09,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-06 20:45:09,005 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:45:09,005 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:45:09,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 20:45:09,005 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 20:45:09,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:45:09,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1850667822, now seen corresponding path program 1 times [2021-08-06 20:45:09,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:45:09,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329151024] [2021-08-06 20:45:09,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:45:09,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:45:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:45:09,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-06 20:45:09,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:45:09,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329151024] [2021-08-06 20:45:09,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329151024] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 20:45:09,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 20:45:09,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-06 20:45:09,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296598035] [2021-08-06 20:45:09,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-06 20:45:09,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:45:09,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-06 20:45:09,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-06 20:45:09,074 INFO L87 Difference]: Start difference. First operand 49 states and 81 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:09,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:45:09,112 INFO L93 Difference]: Finished difference Result 67 states and 115 transitions. [2021-08-06 20:45:09,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-06 20:45:09,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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) Word has length 21 [2021-08-06 20:45:09,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:45:09,116 INFO L225 Difference]: With dead ends: 67 [2021-08-06 20:45:09,116 INFO L226 Difference]: Without dead ends: 67 [2021-08-06 20:45:09,116 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.5ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-06 20:45:09,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-08-06 20:45:09,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 58. [2021-08-06 20:45:09,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.736842105263158) internal successors, (99), 57 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:09,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 99 transitions. [2021-08-06 20:45:09,131 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 99 transitions. Word has length 21 [2021-08-06 20:45:09,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:45:09,131 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 99 transitions. [2021-08-06 20:45:09,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:09,131 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 99 transitions. [2021-08-06 20:45:09,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-06 20:45:09,132 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:45:09,132 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:45:09,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-06 20:45:09,132 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 20:45:09,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:45:09,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1218064500, now seen corresponding path program 1 times [2021-08-06 20:45:09,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:45:09,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489788218] [2021-08-06 20:45:09,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:45:09,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:45:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:45:09,254 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 11, result has 74.4 percent of original size [2021-08-06 20:45:09,263 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 11, result has 74.4 percent of original size [2021-08-06 20:45:09,293 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 10, result has 78.3 percent of original size [2021-08-06 20:45:09,305 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 10, result has 78.3 percent of original size [2021-08-06 20:45:09,355 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 11, result has 77.1 percent of original size [2021-08-06 20:45:09,363 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 11, result has 77.1 percent of original size [2021-08-06 20:45:09,400 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 11, result has 73.8 percent of original size [2021-08-06 20:45:09,403 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 11, result has 73.8 percent of original size [2021-08-06 20:45:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:45:09,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:45:09,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489788218] [2021-08-06 20:45:09,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489788218] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 20:45:09,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128136996] [2021-08-06 20:45:09,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:45:09,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 20:45:09,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 20:45:09,439 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 20:45:09,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-06 20:45:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:45:09,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-06 20:45:09,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 20:45:09,840 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 25 treesize of output 21 [2021-08-06 20:45:09,842 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 21 treesize of output 17 [2021-08-06 20:45:09,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2021-08-06 20:45:09,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:45:09,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128136996] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 20:45:09,887 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 20:45:09,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-08-06 20:45:09,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501464990] [2021-08-06 20:45:09,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-06 20:45:09,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:45:09,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-06 20:45:09,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-08-06 20:45:09,890 INFO L87 Difference]: Start difference. First operand 58 states and 99 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:10,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:45:10,169 INFO L93 Difference]: Finished difference Result 134 states and 222 transitions. [2021-08-06 20:45:10,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-06 20:45:10,169 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 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) Word has length 23 [2021-08-06 20:45:10,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:45:10,170 INFO L225 Difference]: With dead ends: 134 [2021-08-06 20:45:10,170 INFO L226 Difference]: Without dead ends: 129 [2021-08-06 20:45:10,171 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 245.5ms TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2021-08-06 20:45:10,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-08-06 20:45:10,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 76. [2021-08-06 20:45:10,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.8533333333333333) internal successors, (139), 75 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:10,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 139 transitions. [2021-08-06 20:45:10,174 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 139 transitions. Word has length 23 [2021-08-06 20:45:10,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:45:10,174 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 139 transitions. [2021-08-06 20:45:10,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:10,175 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 139 transitions. [2021-08-06 20:45:10,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-06 20:45:10,175 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 20:45:10,175 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 20:45:10,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-06 20:45:10,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 20:45:10,389 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 20:45:10,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 20:45:10,389 INFO L82 PathProgramCache]: Analyzing trace with hash -354320268, now seen corresponding path program 2 times [2021-08-06 20:45:10,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 20:45:10,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725421618] [2021-08-06 20:45:10,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 20:45:10,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 20:45:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 20:45:10,445 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 11, result has 74.4 percent of original size [2021-08-06 20:45:10,449 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 11, result has 74.4 percent of original size [2021-08-06 20:45:10,475 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 10, result has 78.3 percent of original size [2021-08-06 20:45:10,480 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 10, result has 78.3 percent of original size [2021-08-06 20:45:10,513 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 11, result has 77.1 percent of original size [2021-08-06 20:45:10,516 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 11, result has 77.1 percent of original size [2021-08-06 20:45:10,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:45:10,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 20:45:10,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725421618] [2021-08-06 20:45:10,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725421618] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 20:45:10,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504294646] [2021-08-06 20:45:10,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-06 20:45:10,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 20:45:10,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 20:45:10,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-06 20:45:10,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-06 20:45:10,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-06 20:45:10,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-06 20:45:10,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-06 20:45:10,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-06 20:45:10,880 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-06 20:45:10,880 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 25 treesize of output 29 [2021-08-06 20:45:10,887 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-06 20:45:10,888 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 29 treesize of output 33 [2021-08-06 20:45:10,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2021-08-06 20:45:11,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 20:45:11,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504294646] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-06 20:45:11,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-06 20:45:11,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2021-08-06 20:45:11,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596450133] [2021-08-06 20:45:11,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-06 20:45:11,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 20:45:11,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-06 20:45:11,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-08-06 20:45:11,168 INFO L87 Difference]: Start difference. First operand 76 states and 139 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:11,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 20:45:11,724 INFO L93 Difference]: Finished difference Result 173 states and 289 transitions. [2021-08-06 20:45:11,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-06 20:45:11,724 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 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) Word has length 23 [2021-08-06 20:45:11,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 20:45:11,725 INFO L225 Difference]: With dead ends: 173 [2021-08-06 20:45:11,725 INFO L226 Difference]: Without dead ends: 0 [2021-08-06 20:45:11,725 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 475.6ms TimeCoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2021-08-06 20:45:11,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-06 20:45:11,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-06 20:45:11,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:11,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-06 20:45:11,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-08-06 20:45:11,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 20:45:11,730 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-06 20:45:11,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 20:45:11,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-06 20:45:11,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 20:45:11,732 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-06 20:45:11,732 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 20:45:11,732 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 20:45:11,732 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 20:45:11,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-06 20:45:11,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-06 20:45:11,944 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 20:45:11,944 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 20:45:11,945 INFO L202 PluginConnector]: Adding new model vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 08:45:11 BasicIcfg [2021-08-06 20:45:11,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 20:45:11,946 INFO L168 Benchmark]: Toolchain (without parser) took 3857.78 ms. Allocated memory was 178.3 MB in the beginning and 213.9 MB in the end (delta: 35.7 MB). Free memory was 158.9 MB in the beginning and 124.6 MB in the end (delta: 34.3 MB). Peak memory consumption was 70.7 MB. Max. memory is 8.0 GB. [2021-08-06 20:45:11,946 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 178.3 MB. Free memory is still 160.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 20:45:11,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.57 ms. Allocated memory is still 178.3 MB. Free memory was 158.9 MB in the beginning and 157.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 20:45:11,946 INFO L168 Benchmark]: Boogie Preprocessor took 16.04 ms. Allocated memory is still 178.3 MB. Free memory was 157.3 MB in the beginning and 156.5 MB in the end (delta: 804.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 20:45:11,946 INFO L168 Benchmark]: RCFGBuilder took 285.22 ms. Allocated memory is still 178.3 MB. Free memory was 156.4 MB in the beginning and 143.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-06 20:45:11,946 INFO L168 Benchmark]: TraceAbstraction took 3529.97 ms. Allocated memory was 178.3 MB in the beginning and 213.9 MB in the end (delta: 35.7 MB). Free memory was 142.6 MB in the beginning and 124.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 53.9 MB. Max. memory is 8.0 GB. [2021-08-06 20:45:11,947 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 178.3 MB. Free memory is still 160.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 21.57 ms. Allocated memory is still 178.3 MB. Free memory was 158.9 MB in the beginning and 157.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 16.04 ms. Allocated memory is still 178.3 MB. Free memory was 157.3 MB in the beginning and 156.5 MB in the end (delta: 804.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 285.22 ms. Allocated memory is still 178.3 MB. Free memory was 156.4 MB in the beginning and 143.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3529.97 ms. Allocated memory was 178.3 MB in the beginning and 213.9 MB in the end (delta: 35.7 MB). Free memory was 142.6 MB in the beginning and 124.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 53.9 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: 247, positive: 220, positive conditional: 220, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 220, positive: 220, positive conditional: 0, positive unconditional: 220, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 72, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 72, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 220, positive: 148, positive conditional: 0, positive unconditional: 148, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 72, unknown conditional: 0, unknown unconditional: 72] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 27 - 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: 67]: 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 7 procedures, 43 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3435.7ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 14.7ms, AutomataDifference: 991.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 72.7ms, PartialOrderReductionTime: 58.3ms, HoareTripleCheckerStatistics: 93 SDtfs, 408 SDslu, 219 SDs, 0 SdLazy, 489 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 321.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 762.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=0, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 61.7ms AutomataMinimizationTime, 5 MinimizatonAttempts, 88 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.3ms SsaConstructionTime, 76.3ms SatisfiabilityAnalysisTime, 1565.6ms InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 146 ConstructedInterpolants, 7 QuantifiedInterpolants, 1387 SizeOfPredicates, 11 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 2/10 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! [2021-08-06 20:45:11,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...