/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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 00:26:33,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 00:26:33,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 00:26:33,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 00:26:33,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 00:26:33,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 00:26:33,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 00:26:33,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 00:26:33,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 00:26:33,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 00:26:33,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 00:26:33,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 00:26:33,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 00:26:33,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 00:26:33,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 00:26:33,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 00:26:33,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 00:26:33,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 00:26:33,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 00:26:33,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 00:26:33,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 00:26:33,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 00:26:33,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 00:26:33,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 00:26:33,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 00:26:33,376 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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-04 00:26:33,402 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 00:26:33,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 00:26:33,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 00:26:33,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 00:26:33,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 00:26:33,403 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 00:26:33,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 00:26:33,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 00:26:33,404 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 00:26:33,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 00:26:33,404 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 00:26:33,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 00:26:33,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 00:26:33,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 00:26:33,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 00:26:33,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 00:26:33,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 00:26:33,405 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 00:26:33,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 00:26:33,405 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 00:26:33,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 00:26:33,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 00:26:33,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 00:26:33,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 00:26:33,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 00:26:33,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:26:33,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 00:26:33,407 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 00:26:33,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 00:26:33,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 00:26:33,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 00:26:33,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 00:26:33,407 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 00:26:33,407 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 00:26:33,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 00:26:33,407 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 00:26:33,407 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 00:26:33,408 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 00:26:33,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 00:26:33,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 00:26:33,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 00:26:33,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 00:26:33,610 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 00:26:33,611 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 00:26:33,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl [2022-03-04 00:26:33,612 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl' [2022-03-04 00:26:33,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 00:26:33,637 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 00:26:33,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 00:26:33,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 00:26:33,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 00:26:33,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:33" (1/1) ... [2022-03-04 00:26:33,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:33" (1/1) ... [2022-03-04 00:26:33,660 INFO L137 Inliner]: procedures = 10, calls = 9, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 00:26:33,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 00:26:33,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 00:26:33,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 00:26:33,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 00:26:33,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:33" (1/1) ... [2022-03-04 00:26:33,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:33" (1/1) ... [2022-03-04 00:26:33,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:33" (1/1) ... [2022-03-04 00:26:33,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:33" (1/1) ... [2022-03-04 00:26:33,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:33" (1/1) ... [2022-03-04 00:26:33,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:33" (1/1) ... [2022-03-04 00:26:33,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:33" (1/1) ... [2022-03-04 00:26:33,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 00:26:33,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 00:26:33,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 00:26:33,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 00:26:33,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:33" (1/1) ... [2022-03-04 00:26:33,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:26:33,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:26:33,704 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) [2022-03-04 00:26:33,711 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 [2022-03-04 00:26:33,733 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-03-04 00:26:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-03-04 00:26:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-03-04 00:26:33,733 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-03-04 00:26:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-03-04 00:26:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-03-04 00:26:33,733 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-03-04 00:26:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-03-04 00:26:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-03-04 00:26:33,733 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-03-04 00:26:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-03-04 00:26:33,734 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-03-04 00:26:33,734 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-03-04 00:26:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-03-04 00:26:33,734 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-03-04 00:26:33,734 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 00:26:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 00:26:33,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 00:26:33,734 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-03-04 00:26:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-03-04 00:26:33,734 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-03-04 00:26:33,735 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2022-03-04 00:26:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2022-03-04 00:26:33,735 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2022-03-04 00:26:33,735 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2022-03-04 00:26:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2022-03-04 00:26:33,735 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2022-03-04 00:26:33,735 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2022-03-04 00:26:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2022-03-04 00:26:33,735 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2022-03-04 00:26:33,736 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 00:26:33,771 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 00:26:33,773 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 00:26:33,857 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 00:26:33,861 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 00:26:33,862 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 00:26:33,863 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:26:33 BoogieIcfgContainer [2022-03-04 00:26:33,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 00:26:33,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 00:26:33,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 00:26:33,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 00:26:33,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:33" (1/2) ... [2022-03-04 00:26:33,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dca4aa7 and model type example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:26:33, skipping insertion in model container [2022-03-04 00:26:33,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:26:33" (2/2) ... [2022-03-04 00:26:33,869 INFO L111 eAbstractionObserver]: Analyzing ICFG example_9.bpl [2022-03-04 00:26:33,872 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 00:26:33,872 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 00:26:33,872 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 00:26:33,872 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 00:26:33,915 INFO L148 ThreadInstanceAdder]: Constructed 81 joinOtherThreadTransitions. [2022-03-04 00:26:33,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 00:26:33,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:26:33,945 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) [2022-03-04 00:26:33,946 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 [2022-03-04 00:26:34,001 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 00:26:34,017 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-04 00:26:34,017 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-03-04 00:26:34,163 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 253 transitions and produced 254 states. [2022-03-04 00:26:34,164 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-03-04 00:26:34,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:34,172 INFO L85 PathProgramCache]: Analyzing trace with hash -169570670, now seen corresponding path program 1 times [2022-03-04 00:26:34,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:34,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085932734] [2022-03-04 00:26:34,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:34,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:34,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:26:34,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:26:34,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085932734] [2022-03-04 00:26:34,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085932734] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 00:26:34,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 00:26:34,302 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 00:26:34,302 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627117479] [2022-03-04 00:26:34,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 00:26:34,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 00:26:34,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:26:34,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 00:26:34,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 00:26:34,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:34,328 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:26:34,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-03-04 00:26:34,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:34,444 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 253 transitions and produced 254 states. [2022-03-04 00:26:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 00:26:34,445 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-03-04 00:26:34,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:34,445 INFO L85 PathProgramCache]: Analyzing trace with hash 342258774, now seen corresponding path program 1 times [2022-03-04 00:26:34,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:34,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821686347] [2022-03-04 00:26:34,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:34,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:26:34,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:26:34,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821686347] [2022-03-04 00:26:34,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821686347] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 00:26:34,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 00:26:34,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 00:26:34,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013999529] [2022-03-04 00:26:34,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 00:26:34,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 00:26:34,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:26:34,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 00:26:34,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 00:26:34,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:34,527 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:26:34,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-03-04 00:26:34,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:34,657 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 253 transitions and produced 254 states. [2022-03-04 00:26:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-04 00:26:34,658 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-03-04 00:26:34,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:34,658 INFO L85 PathProgramCache]: Analyzing trace with hash 969558878, now seen corresponding path program 1 times [2022-03-04 00:26:34,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:34,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863794725] [2022-03-04 00:26:34,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:34,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:26:34,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:26:34,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863794725] [2022-03-04 00:26:34,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863794725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 00:26:34,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 00:26:34,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 00:26:34,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119339] [2022-03-04 00:26:34,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 00:26:34,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 00:26:34,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:26:34,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 00:26:34,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 00:26:34,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:34,688 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:26:34,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-03-04 00:26:34,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:34,752 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 253 transitions and produced 254 states. [2022-03-04 00:26:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-04 00:26:34,757 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-03-04 00:26:34,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:34,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1793222788, now seen corresponding path program 1 times [2022-03-04 00:26:34,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:34,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302556727] [2022-03-04 00:26:34,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:34,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:26:34,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:26:34,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302556727] [2022-03-04 00:26:34,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302556727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 00:26:34,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 00:26:34,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 00:26:34,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859003282] [2022-03-04 00:26:34,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 00:26:34,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 00:26:34,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:26:34,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 00:26:34,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 00:26:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:34,808 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:26:34,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-03-04 00:26:34,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:34,864 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 253 transitions and produced 254 states. [2022-03-04 00:26:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-04 00:26:34,865 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-03-04 00:26:34,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:34,865 INFO L85 PathProgramCache]: Analyzing trace with hash -46428702, now seen corresponding path program 1 times [2022-03-04 00:26:34,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:34,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952533359] [2022-03-04 00:26:34,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:34,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:34,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:26:34,912 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:26:34,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952533359] [2022-03-04 00:26:34,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952533359] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 00:26:34,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 00:26:34,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 00:26:34,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140143706] [2022-03-04 00:26:34,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 00:26:34,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 00:26:34,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:26:34,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 00:26:34,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 00:26:34,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:34,914 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:26:34,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-03-04 00:26:34,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:34,984 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 253 transitions and produced 254 states. [2022-03-04 00:26:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:34,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-04 00:26:34,985 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-03-04 00:26:34,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:34,986 INFO L85 PathProgramCache]: Analyzing trace with hash 698273796, now seen corresponding path program 1 times [2022-03-04 00:26:34,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:34,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641896142] [2022-03-04 00:26:34,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:34,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:26:35,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:26:35,010 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641896142] [2022-03-04 00:26:35,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641896142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 00:26:35,010 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 00:26:35,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 00:26:35,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126878491] [2022-03-04 00:26:35,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 00:26:35,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 00:26:35,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:26:35,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 00:26:35,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 00:26:35,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:35,011 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:26:35,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-03-04 00:26:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:35,069 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 253 transitions and produced 254 states. [2022-03-04 00:26:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-04 00:26:35,070 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 6 more)] === [2022-03-04 00:26:35,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:35,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1110104188, now seen corresponding path program 1 times [2022-03-04 00:26:35,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:35,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218795299] [2022-03-04 00:26:35,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:35,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:26:35,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:26:35,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218795299] [2022-03-04 00:26:35,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218795299] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 00:26:35,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 00:26:35,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-04 00:26:35,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479272206] [2022-03-04 00:26:35,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 00:26:35,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-04 00:26:35,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:26:35,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-04 00:26:35,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-03-04 00:26:35,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:35,567 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:26:35,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 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) [2022-03-04 00:26:35,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:26:35,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:27:07,937 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 594714 transitions and produced 208207 states. [2022-03-04 00:27:07,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:27:07,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:27:07,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:27:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:27:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:27:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 00:27:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 00:27:07,940 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 10 remaining) [2022-03-04 00:27:07,941 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (8 of 10 remaining) [2022-03-04 00:27:07,941 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (7 of 10 remaining) [2022-03-04 00:27:07,941 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (6 of 10 remaining) [2022-03-04 00:27:07,941 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (5 of 10 remaining) [2022-03-04 00:27:07,942 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION (4 of 10 remaining) [2022-03-04 00:27:07,942 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION (3 of 10 remaining) [2022-03-04 00:27:07,942 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION (2 of 10 remaining) [2022-03-04 00:27:07,942 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION (1 of 10 remaining) [2022-03-04 00:27:07,942 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8INUSE_VIOLATION (0 of 10 remaining) [2022-03-04 00:27:07,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-04 00:27:07,947 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-03-04 00:27:07,948 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 00:27:07,949 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 00:27:07,950 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:27:07 BasicIcfg [2022-03-04 00:27:07,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 00:27:07,951 INFO L158 Benchmark]: Toolchain (without parser) took 34313.38ms. Allocated memory was 176.2MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 135.6MB in the beginning and 5.2GB in the end (delta: -5.1GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB. [2022-03-04 00:27:07,951 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 176.2MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 00:27:07,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.23ms. Allocated memory is still 176.2MB. Free memory was 135.6MB in the beginning and 134.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 00:27:07,951 INFO L158 Benchmark]: Boogie Preprocessor took 8.73ms. Allocated memory is still 176.2MB. Free memory was 134.0MB in the beginning and 133.1MB in the end (delta: 895.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 00:27:07,952 INFO L158 Benchmark]: RCFGBuilder took 190.74ms. Allocated memory is still 176.2MB. Free memory was 133.0MB in the beginning and 123.7MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 00:27:07,952 INFO L158 Benchmark]: TraceAbstraction took 34086.02ms. Allocated memory was 176.2MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 123.2MB in the beginning and 5.2GB in the end (delta: -5.1GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB. [2022-03-04 00:27:07,953 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 0.16ms. Allocated memory is still 176.2MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.23ms. Allocated memory is still 176.2MB. Free memory was 135.6MB in the beginning and 134.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 8.73ms. Allocated memory is still 176.2MB. Free memory was 134.0MB in the beginning and 133.1MB in the end (delta: 895.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 190.74ms. Allocated memory is still 176.2MB. Free memory was 133.0MB in the beginning and 123.7MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 34086.02ms. Allocated memory was 176.2MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 123.2MB in the beginning and 5.2GB in the end (delta: -5.1GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 31]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 19 procedures, 85 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 34.0s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 33.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 1754 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 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! [2022-03-04 00:27:07,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-03-04 00:27:08,198 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...