/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 05:33:37,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 05:33:37,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 05:33:37,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 05:33:37,994 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.epf [2022-03-04 05:33:38,012 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 05:33:38,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 05:33:38,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 05:33:38,012 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 05:33:38,013 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 05:33:38,013 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 05:33:38,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 05:33:38,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 05:33:38,013 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 05:33:38,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 05:33:38,014 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 05:33:38,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 05:33:38,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 05:33:38,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 05:33:38,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 05:33:38,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 05:33:38,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 05:33:38,014 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 05:33:38,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 05:33:38,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 05:33:38,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 05:33:38,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 05:33:38,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 05:33:38,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 05:33:38,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 05:33:38,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 05:33:38,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 05:33:38,018 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 05:33:38,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 05:33:38,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 05:33:38,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 05:33:38,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 05:33:38,019 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 05:33:38,019 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 05:33:38,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 05:33:38,019 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 05:33:38,020 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 05:33:38,020 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 05:33:38,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 05:33:38,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 05:33:38,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 05:33:38,215 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 05:33:38,216 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 05:33:38,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl [2022-03-04 05:33:38,217 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl' [2022-03-04 05:33:38,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 05:33:38,238 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 05:33:38,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 05:33:38,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 05:33:38,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 05:33:38,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:33:38" (1/1) ... [2022-03-04 05:33:38,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:33:38" (1/1) ... [2022-03-04 05:33:38,256 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 05:33:38,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 05:33:38,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 05:33:38,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 05:33:38,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 05:33:38,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:33:38" (1/1) ... [2022-03-04 05:33:38,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:33:38" (1/1) ... [2022-03-04 05:33:38,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:33:38" (1/1) ... [2022-03-04 05:33:38,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:33:38" (1/1) ... [2022-03-04 05:33:38,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:33:38" (1/1) ... [2022-03-04 05:33:38,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:33:38" (1/1) ... [2022-03-04 05:33:38,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:33:38" (1/1) ... [2022-03-04 05:33:38,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 05:33:38,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 05:33:38,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 05:33:38,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 05:33:38,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:33:38" (1/1) ... [2022-03-04 05:33:38,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 05:33:38,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:33:38,291 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 05:33:38,296 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 05:33:38,322 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 05:33:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 05:33:38,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 05:33:38,322 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 05:33:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 05:33:38,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 05:33:38,323 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 05:33:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 05:33:38,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 05:33:38,323 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 05:33:38,357 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 05:33:38,358 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 05:33:38,464 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 05:33:38,478 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 05:33:38,479 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 05:33:38,483 INFO L202 PluginConnector]: Adding new model misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 05:33:38 BoogieIcfgContainer [2022-03-04 05:33:38,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 05:33:38,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 05:33:38,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 05:33:38,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 05:33:38,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 05:33:38" (1/2) ... [2022-03-04 05:33:38,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471ba480 and model type misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 05:33:38, skipping insertion in model container [2022-03-04 05:33:38,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 05:33:38" (2/2) ... [2022-03-04 05:33:38,525 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-2-unrolled.wvr.bpl [2022-03-04 05:33:38,528 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 05:33:38,528 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 05:33:38,528 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 05:33:38,528 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 05:33:38,557 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-04 05:33:38,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 05:33:38,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:33:38,615 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 05:33:38,617 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 05:33:38,649 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 05:33:38,654 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=true [2022-03-04 05:33:38,654 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 05:33:38,768 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1114 transitions and produced 846 states. [2022-03-04 05:33:38,770 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 05:33:38,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:33:38,774 INFO L85 PathProgramCache]: Analyzing trace with hash -106007834, now seen corresponding path program 1 times [2022-03-04 05:33:38,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:33:38,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697416808] [2022-03-04 05:33:38,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:33:38,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:33:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:33:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 5498 proven. 271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:33:42,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:33:42,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697416808] [2022-03-04 05:33:42,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697416808] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:33:42,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159694738] [2022-03-04 05:33:42,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:33:42,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:33:42,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:33:42,438 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 05:33:42,453 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 05:33:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:33:42,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 110 conjunts are in the unsatisfiable core [2022-03-04 05:33:42,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:33:43,207 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 5498 proven. 271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:33:43,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:33:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 5498 proven. 271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:33:49,531 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159694738] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:33:49,531 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:33:49,531 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 91, 108] total 198 [2022-03-04 05:33:49,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269058287] [2022-03-04 05:33:49,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:33:49,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 199 states [2022-03-04 05:33:49,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:33:49,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 199 interpolants. [2022-03-04 05:33:49,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18172, Invalid=21230, Unknown=0, NotChecked=0, Total=39402 [2022-03-04 05:33:49,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:33:49,567 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:33:49,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 199 states, 199 states have (on average 2.798994974874372) internal successors, (557), 198 states have internal predecessors, (557), 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 05:33:49,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:34:01,890 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1496 transitions and produced 1298 states. [2022-03-04 05:34:01,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 294 states. [2022-03-04 05:34:01,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 05:34:02,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 05:34:02,093 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 05:34:02,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:34:02,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1228101904, now seen corresponding path program 2 times [2022-03-04 05:34:02,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:34:02,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664050464] [2022-03-04 05:34:02,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:34:02,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:34:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:34:14,951 INFO L134 CoverageAnalysis]: Checked inductivity of 16573 backedges. 11799 proven. 4774 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:34:14,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:34:14,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664050464] [2022-03-04 05:34:14,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664050464] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:34:14,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008525141] [2022-03-04 05:34:14,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 05:34:14,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:34:14,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:34:14,953 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 05:34:14,953 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 05:34:15,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 05:34:15,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:34:15,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1043 conjuncts, 180 conjunts are in the unsatisfiable core [2022-03-04 05:34:15,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:34:16,097 INFO L134 CoverageAnalysis]: Checked inductivity of 16573 backedges. 10299 proven. 4774 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2022-03-04 05:34:16,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:34:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 16573 backedges. 10299 proven. 4774 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2022-03-04 05:34:25,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008525141] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:34:25,834 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:34:25,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [227, 179, 179] total 316 [2022-03-04 05:34:25,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279768841] [2022-03-04 05:34:25,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:34:25,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 317 states [2022-03-04 05:34:25,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:34:25,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 317 interpolants. [2022-03-04 05:34:25,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25700, Invalid=74472, Unknown=0, NotChecked=0, Total=100172 [2022-03-04 05:34:25,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:34:25,854 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:34:25,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 317 states, 317 states have (on average 2.529968454258675) internal successors, (802), 316 states have internal predecessors, (802), 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 05:34:25,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 294 states. [2022-03-04 05:34:25,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:34:50,770 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9612 transitions and produced 5580 states. [2022-03-04 05:34:50,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 464 states. [2022-03-04 05:34:50,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-03-04 05:34:50,788 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 05:34:50,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:34:50,971 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 05:34:50,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:34:50,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1615244582, now seen corresponding path program 3 times [2022-03-04 05:34:50,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:34:50,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076869751] [2022-03-04 05:34:50,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:34:50,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:34:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:35:10,993 INFO L134 CoverageAnalysis]: Checked inductivity of 29900 backedges. 16308 proven. 13592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:35:10,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:35:10,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076869751] [2022-03-04 05:35:10,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076869751] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:35:10,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903436698] [2022-03-04 05:35:10,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 05:35:10,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:35:10,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:35:10,995 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 05:35:10,996 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 05:35:11,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 83 check-sat command(s) [2022-03-04 05:35:11,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:35:11,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 312 conjunts are in the unsatisfiable core [2022-03-04 05:35:11,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:35:12,644 INFO L134 CoverageAnalysis]: Checked inductivity of 29900 backedges. 16308 proven. 13592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:35:12,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:35:35,612 INFO L134 CoverageAnalysis]: Checked inductivity of 29900 backedges. 16308 proven. 13592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:35:35,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903436698] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:35:35,613 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:35:35,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [297, 297, 311] total 483 [2022-03-04 05:35:35,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14501412] [2022-03-04 05:35:35,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:35:35,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 484 states [2022-03-04 05:35:35,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:35:35,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 484 interpolants. [2022-03-04 05:35:35,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66016, Invalid=167756, Unknown=0, NotChecked=0, Total=233772 [2022-03-04 05:35:35,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:35:35,643 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:35:35,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 484 states, 484 states have (on average 2.605371900826446) internal successors, (1261), 483 states have internal predecessors, (1261), 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 05:35:35,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 464 states. [2022-03-04 05:35:35,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2022-03-04 05:35:35,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:36:27,781 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2197 transitions and produced 1818 states. [2022-03-04 05:36:27,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 464 states. [2022-03-04 05:36:27,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-03-04 05:36:27,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 327 states. [2022-03-04 05:36:27,801 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 05:36:27,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:36:27,982 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 05:36:27,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:36:27,983 INFO L85 PathProgramCache]: Analyzing trace with hash 229666541, now seen corresponding path program 4 times [2022-03-04 05:36:27,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:36:27,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591845915] [2022-03-04 05:36:27,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:36:27,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:36:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:36:51,793 INFO L134 CoverageAnalysis]: Checked inductivity of 32171 backedges. 16687 proven. 15484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:36:51,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:36:51,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591845915] [2022-03-04 05:36:51,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591845915] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:36:51,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582257958] [2022-03-04 05:36:51,795 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 05:36:51,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:36:51,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:36:51,796 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 05:36:51,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 05:36:52,027 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 05:36:52,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:36:52,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 320 conjunts are in the unsatisfiable core [2022-03-04 05:36:52,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:36:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 32171 backedges. 16672 proven. 15484 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-04 05:36:53,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:37:15,091 INFO L134 CoverageAnalysis]: Checked inductivity of 32171 backedges. 16672 proven. 15484 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-04 05:37:15,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582257958] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:37:15,091 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:37:15,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [323, 319, 319] total 482 [2022-03-04 05:37:15,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972272269] [2022-03-04 05:37:15,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:37:15,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 483 states [2022-03-04 05:37:15,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:37:15,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 483 interpolants. [2022-03-04 05:37:15,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64569, Invalid=168237, Unknown=0, NotChecked=0, Total=232806 [2022-03-04 05:37:15,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:37:15,163 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:37:15,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 483 states, 483 states have (on average 2.5196687370600412) internal successors, (1217), 482 states have internal predecessors, (1217), 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 05:37:15,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 464 states. [2022-03-04 05:37:15,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2022-03-04 05:37:15,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 327 states. [2022-03-04 05:37:15,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:38:17,323 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9945 transitions and produced 6147 states. [2022-03-04 05:38:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 464 states. [2022-03-04 05:38:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-03-04 05:38:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2022-03-04 05:38:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-03-04 05:38:17,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-04 05:38:17,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:38:17,526 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 05:38:17,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:38:17,526 INFO L85 PathProgramCache]: Analyzing trace with hash -488485469, now seen corresponding path program 5 times [2022-03-04 05:38:17,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:38:17,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107276911] [2022-03-04 05:38:17,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:38:17,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:38:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:38:52,466 INFO L134 CoverageAnalysis]: Checked inductivity of 52408 backedges. 33493 proven. 18915 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:38:52,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:38:52,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107276911] [2022-03-04 05:38:52,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107276911] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:38:52,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416343038] [2022-03-04 05:38:52,467 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 05:38:52,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:38:52,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:38:52,468 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 05:38:52,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 05:38:53,043 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 118 check-sat command(s) [2022-03-04 05:38:53,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:38:53,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 1853 conjuncts, 348 conjunts are in the unsatisfiable core [2022-03-04 05:38:53,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:39:05,513 INFO L134 CoverageAnalysis]: Checked inductivity of 52408 backedges. 18361 proven. 33762 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-03-04 05:39:05,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:39:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 52408 backedges. 18361 proven. 33762 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-03-04 05:39:35,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416343038] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:39:35,468 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:39:35,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [393, 345, 347] total 627 [2022-03-04 05:39:35,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376573576] [2022-03-04 05:39:35,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:39:35,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 628 states [2022-03-04 05:39:35,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:39:35,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 628 interpolants. [2022-03-04 05:39:35,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106476, Invalid=287280, Unknown=0, NotChecked=0, Total=393756 [2022-03-04 05:39:35,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:39:35,496 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:39:35,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 628 states, 628 states have (on average 2.6321656050955413) internal successors, (1653), 627 states have internal predecessors, (1653), 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 05:39:35,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 464 states. [2022-03-04 05:39:35,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2022-03-04 05:39:35,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 424 states. [2022-03-04 05:39:35,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 400 states. [2022-03-04 05:39:35,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:41:52,374 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3098 transitions and produced 2514 states. [2022-03-04 05:41:52,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 464 states. [2022-03-04 05:41:52,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-03-04 05:41:52,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2022-03-04 05:41:52,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-03-04 05:41:52,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 455 states. [2022-03-04 05:41:52,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 05:41:52,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:41:52,584 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 05:41:52,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:41:52,584 INFO L85 PathProgramCache]: Analyzing trace with hash 157286896, now seen corresponding path program 6 times [2022-03-04 05:41:52,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:41:52,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523831398] [2022-03-04 05:41:52,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:41:52,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:41:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:42:39,248 INFO L134 CoverageAnalysis]: Checked inductivity of 64072 backedges. 31753 proven. 32319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:42:39,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:42:39,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523831398] [2022-03-04 05:42:39,249 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523831398] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:42:39,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124024608] [2022-03-04 05:42:39,249 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 05:42:39,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:42:39,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:42:39,250 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 05:42:39,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 05:42:39,812 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 115 check-sat command(s) [2022-03-04 05:42:39,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:42:39,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 2069 conjuncts, 456 conjunts are in the unsatisfiable core [2022-03-04 05:42:39,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:42:41,648 INFO L134 CoverageAnalysis]: Checked inductivity of 64072 backedges. 31753 proven. 32319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:42:41,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:43:25,626 INFO L134 CoverageAnalysis]: Checked inductivity of 64072 backedges. 31753 proven. 32319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:43:25,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124024608] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:43:25,627 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:43:25,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [455, 455, 455] total 682 [2022-03-04 05:43:25,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225362458] [2022-03-04 05:43:25,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:43:25,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 683 states [2022-03-04 05:43:25,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:43:25,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 683 interpolants. [2022-03-04 05:43:25,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129845, Invalid=335961, Unknown=0, NotChecked=0, Total=465806 [2022-03-04 05:43:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:43:25,669 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:43:25,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 683 states, 683 states have (on average 2.5109809663250364) internal successors, (1715), 682 states have internal predecessors, (1715), 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 05:43:25,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 464 states. [2022-03-04 05:43:25,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2022-03-04 05:43:25,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 424 states. [2022-03-04 05:43:25,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 400 states. [2022-03-04 05:43:25,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 455 states. [2022-03-04 05:43:25,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:45:26,087 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3105 transitions and produced 2521 states. [2022-03-04 05:45:26,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 464 states. [2022-03-04 05:45:26,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-03-04 05:45:26,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2022-03-04 05:45:26,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-03-04 05:45:26,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 455 states. [2022-03-04 05:45:26,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 457 states. [2022-03-04 05:45:26,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 05:45:26,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:45:26,288 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 05:45:26,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:45:26,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1738174098, now seen corresponding path program 7 times [2022-03-04 05:45:26,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:45:26,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851728816] [2022-03-04 05:45:26,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:45:26,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:45:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:45:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 64638 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64638 trivial. 0 not checked. [2022-03-04 05:45:28,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:45:28,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851728816] [2022-03-04 05:45:28,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851728816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 05:45:28,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 05:45:28,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-04 05:45:28,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940406962] [2022-03-04 05:45:28,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 05:45:28,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-04 05:45:28,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:45:28,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-04 05:45:28,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-04 05:45:28,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:45:28,543 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:45:28,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 05:45:28,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 464 states. [2022-03-04 05:45:28,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2022-03-04 05:45:28,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 424 states. [2022-03-04 05:45:28,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 400 states. [2022-03-04 05:45:28,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 455 states. [2022-03-04 05:45:28,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 457 states. [2022-03-04 05:45:28,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-04 05:46:16,698 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 05:46:16,698 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 05:46:16,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-04 05:46:16,883 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-03-04 05:46:16,885 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-04 05:46:16,885 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-04 05:46:16,885 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-04 05:46:16,889 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-03-04 05:46:16,891 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 05:46:16,891 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 05:46:16,892 INFO L202 PluginConnector]: Adding new model misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 05:46:16 BasicIcfg [2022-03-04 05:46:16,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 05:46:16,893 INFO L158 Benchmark]: Toolchain (without parser) took 758654.81ms. Allocated memory was 207.6MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 166.8MB in the beginning and 693.7MB in the end (delta: -526.8MB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2022-03-04 05:46:16,893 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 207.6MB. Free memory is still 167.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 05:46:16,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.03ms. Allocated memory is still 207.6MB. Free memory was 166.8MB in the beginning and 165.2MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-04 05:46:16,893 INFO L158 Benchmark]: Boogie Preprocessor took 12.67ms. Allocated memory is still 207.6MB. Free memory was 165.2MB in the beginning and 164.3MB in the end (delta: 933.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 05:46:16,894 INFO L158 Benchmark]: RCFGBuilder took 212.63ms. Allocated memory is still 207.6MB. Free memory was 164.3MB in the beginning and 155.7MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-04 05:46:16,894 INFO L158 Benchmark]: TraceAbstraction took 758407.59ms. Allocated memory was 207.6MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 155.2MB in the beginning and 693.7MB in the end (delta: -538.5MB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2022-03-04 05:46:16,895 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 0.10ms. Allocated memory is still 207.6MB. Free memory is still 167.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.03ms. Allocated memory is still 207.6MB. Free memory was 166.8MB in the beginning and 165.2MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.67ms. Allocated memory is still 207.6MB. Free memory was 165.2MB in the beginning and 164.3MB in the end (delta: 933.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 212.63ms. Allocated memory is still 207.6MB. Free memory was 164.3MB in the beginning and 155.7MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 758407.59ms. Allocated memory was 207.6MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 155.2MB in the beginning and 693.7MB in the end (delta: -538.5MB). Peak memory consumption was 1.7GB. 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: 45]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 40]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 40]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 40 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 758.3s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 457.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2430, 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: 0.3s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 294.6s InterpolantComputationTime, 10413 NumberOfCodeBlocks, 10413 NumberOfCodeBlocksAsserted, 327 NumberOfCheckSat, 15025 ConstructedInterpolants, 0 QuantifiedInterpolants, 111639 SizeOfPredicates, 18 NumberOfNonLiveVariables, 8373 ConjunctsInSsa, 1726 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 381558/667317 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