/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-mult.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 11:51:00,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 11:51:00,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 11:51:00,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 11:51:00,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 11:51:00,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 11:51:00,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 11:51:00,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 11:51:00,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 11:51:00,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 11:51:00,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 11:51:00,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 11:51:00,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 11:51:00,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 11:51:00,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 11:51:00,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 11:51:00,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 11:51:00,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 11:51:00,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 11:51:00,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 11:51:00,289 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-MCRwithoutDepranks-Lazy.epf [2022-03-04 11:51:00,316 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 11:51:00,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 11:51:00,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 11:51:00,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 11:51:00,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 11:51:00,317 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 11:51:00,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 11:51:00,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 11:51:00,318 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 11:51:00,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 11:51:00,319 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 11:51:00,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 11:51:00,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 11:51:00,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 11:51:00,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 11:51:00,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 11:51:00,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 11:51:00,319 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 11:51:00,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 11:51:00,320 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 11:51:00,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 11:51:00,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 11:51:00,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 11:51:00,320 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 11:51:00,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 11:51:00,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:51:00,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 11:51:00,321 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 11:51:00,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 11:51:00,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 11:51:00,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 11:51:00,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 11:51:00,322 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 11:51:00,322 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 11:51:00,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 11:51:00,322 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 11:51:00,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 11:51:00,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 11:51:00,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 11:51:00,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 11:51:00,553 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 11:51:00,553 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 11:51:00,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-mult.wvr.bpl [2022-03-04 11:51:00,554 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-mult.wvr.bpl' [2022-03-04 11:51:00,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 11:51:00,574 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 11:51:00,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 11:51:00,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 11:51:00,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 11:51:00,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,593 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 11:51:00,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 11:51:00,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 11:51:00,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 11:51:00,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 11:51:00,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 11:51:00,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 11:51:00,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 11:51:00,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 11:51:00,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:51:00,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:51:00,653 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 11:51:00,668 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 11:51:00,685 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 11:51:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 11:51:00,685 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 11:51:00,685 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 11:51:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 11:51:00,685 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 11:51:00,685 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 11:51:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 11:51:00,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 11:51:00,686 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 11:51:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 11:51:00,686 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 11:51:00,686 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-04 11:51:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-04 11:51:00,686 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-04 11:51:00,687 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 11:51:00,724 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 11:51:00,725 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 11:51:00,808 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 11:51:00,835 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 11:51:00,835 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 11:51:00,836 INFO L202 PluginConnector]: Adding new model buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:51:00 BoogieIcfgContainer [2022-03-04 11:51:00,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 11:51:00,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 11:51:00,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 11:51:00,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 11:51:00,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/2) ... [2022-03-04 11:51:00,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11efd3fc and model type buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:51:00, skipping insertion in model container [2022-03-04 11:51:00,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:51:00" (2/2) ... [2022-03-04 11:51:00,845 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-mult.wvr.bpl [2022-03-04 11:51:00,848 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 11:51:00,849 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 11:51:00,849 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 11:51:00,849 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 11:51:00,896 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-04 11:51:00,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 11:51:00,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:51:00,934 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 11:51:00,935 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 11:51:00,953 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 11:51:00,958 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=true, mMcrOverapproximateWrwc=true [2022-03-04 11:51:00,958 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-04 11:51:01,537 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1423 transitions and produced 1337 states. [2022-03-04 11:51:01,540 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:51:01,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:51:01,547 INFO L85 PathProgramCache]: Analyzing trace with hash 447327611, now seen corresponding path program 1 times [2022-03-04 11:51:01,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:51:01,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253318274] [2022-03-04 11:51:01,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:51:01,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:51:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:51:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 8516 backedges. 2740 proven. 0 refuted. 0 times theorem prover too weak. 5776 trivial. 0 not checked. [2022-03-04 11:51:02,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:51:02,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253318274] [2022-03-04 11:51:02,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253318274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 11:51:02,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 11:51:02,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 11:51:02,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164844892] [2022-03-04 11:51:02,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 11:51:02,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 11:51:02,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:51:02,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 11:51:02,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 11:51:02,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:51:02,068 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:51:02,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 11:51:02,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:51:02,869 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2761 transitions and produced 2417 states. [2022-03-04 11:51:02,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:51:02,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 11:51:02,870 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:51:02,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:51:02,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1730886557, now seen corresponding path program 2 times [2022-03-04 11:51:02,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:51:02,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737057510] [2022-03-04 11:51:02,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:51:02,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:51:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:51:03,559 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 20513 proven. 8891 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2022-03-04 11:51:03,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:51:03,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737057510] [2022-03-04 11:51:03,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737057510] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:51:03,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581774925] [2022-03-04 11:51:03,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 11:51:03,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:51:03,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:51:03,580 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) [2022-03-04 11:51:03,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 11:51:03,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 11:51:03,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:51:03,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 1438 conjuncts, 52 conjunts are in the unsatisfiable core [2022-03-04 11:51:03,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:51:06,079 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 13334 proven. 2356 refuted. 0 times theorem prover too weak. 17020 trivial. 0 not checked. [2022-03-04 11:51:06,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:51:07,836 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 15624 proven. 48 refuted. 0 times theorem prover too weak. 17038 trivial. 0 not checked. [2022-03-04 11:51:07,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581774925] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:51:07,838 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:51:07,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 51, 39] total 103 [2022-03-04 11:51:07,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849238378] [2022-03-04 11:51:07,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:51:07,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-03-04 11:51:07,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:51:07,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-03-04 11:51:07,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2919, Invalid=7793, Unknown=0, NotChecked=0, Total=10712 [2022-03-04 11:51:07,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:51:07,849 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:51:07,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 3.8846153846153846) internal successors, (404), 103 states have internal predecessors, (404), 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 11:51:07,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:51:07,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:51:15,008 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2939 transitions and produced 2389 states. [2022-03-04 11:51:15,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:51:15,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-04 11:51:15,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-04 11:51:15,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-03-04 11:51:15,224 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:51:15,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:51:15,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1020910943, now seen corresponding path program 3 times [2022-03-04 11:51:15,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:51:15,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350031004] [2022-03-04 11:51:15,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:51:15,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:51:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:51:32,128 INFO L134 CoverageAnalysis]: Checked inductivity of 24452 backedges. 10437 proven. 11346 refuted. 0 times theorem prover too weak. 2669 trivial. 0 not checked. [2022-03-04 11:51:32,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:51:32,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350031004] [2022-03-04 11:51:32,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350031004] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:51:32,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091490676] [2022-03-04 11:51:32,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 11:51:32,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:51:32,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:51:32,141 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:51:32,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 11:51:32,277 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2022-03-04 11:51:32,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:51:32,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-04 11:51:32,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:51:34,067 INFO L134 CoverageAnalysis]: Checked inductivity of 24452 backedges. 5004 proven. 65 refuted. 0 times theorem prover too weak. 19383 trivial. 0 not checked. [2022-03-04 11:51:34,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:51:34,875 INFO L134 CoverageAnalysis]: Checked inductivity of 24452 backedges. 5004 proven. 65 refuted. 0 times theorem prover too weak. 19383 trivial. 0 not checked. [2022-03-04 11:51:34,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091490676] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:51:34,876 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:51:34,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [242, 13, 13] total 257 [2022-03-04 11:51:34,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039724790] [2022-03-04 11:51:34,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:51:34,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 257 states [2022-03-04 11:51:34,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:51:34,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 257 interpolants. [2022-03-04 11:51:34,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13885, Invalid=51907, Unknown=0, NotChecked=0, Total=65792 [2022-03-04 11:51:34,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:51:34,900 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:51:34,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 257 states, 257 states have (on average 1.972762645914397) internal successors, (507), 257 states have internal predecessors, (507), 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 11:51:34,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:51:34,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-04 11:51:34,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:52:24,244 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3847 transitions and produced 3338 states. [2022-03-04 11:52:24,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:52:24,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-04 11:52:24,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 672 states. [2022-03-04 11:52:24,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-04 11:52:24,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:52:24,462 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:52:24,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:52:24,462 INFO L85 PathProgramCache]: Analyzing trace with hash 924734159, now seen corresponding path program 4 times [2022-03-04 11:52:24,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:52:24,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968918826] [2022-03-04 11:52:24,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:52:24,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:52:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:52:53,624 INFO L134 CoverageAnalysis]: Checked inductivity of 45764 backedges. 13474 proven. 29623 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-03-04 11:52:53,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:52:53,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968918826] [2022-03-04 11:52:53,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968918826] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:52:53,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278900752] [2022-03-04 11:52:53,628 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 11:52:53,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:52:53,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:52:53,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:52:53,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 11:52:53,912 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 11:52:53,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:52:53,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 2090 conjuncts, 90 conjunts are in the unsatisfiable core [2022-03-04 11:52:53,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:53:07,422 INFO L134 CoverageAnalysis]: Checked inductivity of 45764 backedges. 14582 proven. 2752 refuted. 0 times theorem prover too weak. 28430 trivial. 0 not checked. [2022-03-04 11:53:07,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:53:21,913 INFO L134 CoverageAnalysis]: Checked inductivity of 45764 backedges. 14582 proven. 2752 refuted. 0 times theorem prover too weak. 28430 trivial. 0 not checked. [2022-03-04 11:53:21,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278900752] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:53:21,914 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:53:21,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [396, 89, 89] total 572 [2022-03-04 11:53:21,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143117754] [2022-03-04 11:53:21,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:53:21,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 573 states [2022-03-04 11:53:21,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:53:21,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 573 interpolants. [2022-03-04 11:53:21,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32748, Invalid=295008, Unknown=0, NotChecked=0, Total=327756 [2022-03-04 11:53:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:53:21,973 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:53:21,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 573 states, 573 states have (on average 2.155322862129145) internal successors, (1235), 572 states have internal predecessors, (1235), 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 11:53:21,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:53:21,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-04 11:53:21,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 672 states. [2022-03-04 11:53:21,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:53:56,913 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 37272 transitions and produced 29605 states. [2022-03-04 11:53:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:53:56,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2022-03-04 11:53:56,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 682 states. [2022-03-04 11:53:56,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 317 states. [2022-03-04 11:53:56,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 11:53:57,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:53:57,117 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:53:57,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:53:57,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1049204283, now seen corresponding path program 5 times [2022-03-04 11:53:57,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:53:57,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909531722] [2022-03-04 11:53:57,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:53:57,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:54:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-04 12:05:19,898 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-04 12:05:19,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-04 12:05:19,899 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1505 known predicates. [2022-03-04 12:05:19,901 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-04 12:05:19,902 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-04 12:05:19,902 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-04 12:05:19,902 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-04 12:05:19,907 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:05:19,907 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:05:19,919 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-03-04 12:05:19,926 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 12:05:19,926 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 12:05:19,930 INFO L202 PluginConnector]: Adding new model buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:05:19 BasicIcfg [2022-03-04 12:05:19,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 12:05:19,931 INFO L158 Benchmark]: Toolchain (without parser) took 859357.03ms. Allocated memory was 185.6MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 147.1MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2022-03-04 12:05:19,933 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 185.6MB. Free memory was 148.3MB in the beginning and 148.2MB in the end (delta: 122.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 12:05:19,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.81ms. Allocated memory is still 185.6MB. Free memory was 147.0MB in the beginning and 145.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 12:05:19,937 INFO L158 Benchmark]: Boogie Preprocessor took 19.72ms. Allocated memory is still 185.6MB. Free memory was 145.5MB in the beginning and 144.5MB in the end (delta: 937.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 12:05:19,938 INFO L158 Benchmark]: RCFGBuilder took 220.02ms. Allocated memory is still 185.6MB. Free memory was 144.4MB in the beginning and 133.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-04 12:05:19,938 INFO L158 Benchmark]: TraceAbstraction took 859092.53ms. Allocated memory was 185.6MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 133.4MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2022-03-04 12:05:19,939 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 0.11ms. Allocated memory is still 185.6MB. Free memory was 148.3MB in the beginning and 148.2MB in the end (delta: 122.5kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.81ms. Allocated memory is still 185.6MB. Free memory was 147.0MB in the beginning and 145.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.72ms. Allocated memory is still 185.6MB. Free memory was 145.5MB in the beginning and 144.5MB in the end (delta: 937.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 220.02ms. Allocated memory is still 185.6MB. Free memory was 144.4MB in the beginning and 133.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 859092.53ms. Allocated memory was 185.6MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 133.4MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 2.9GB. 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 - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1505 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1505 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1505 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1505 known predicates. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1505 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 859.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 92.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1176, 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: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 80.5s InterpolantComputationTime, 4140 NumberOfCodeBlocks, 3770 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 6058 ConstructedInterpolants, 0 QuantifiedInterpolants, 25324 SizeOfPredicates, 8 NumberOfNonLiveVariables, 3963 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 259396/317294 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown