/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-mult.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 01:27:24,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 01:27:24,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 01:27:24,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 01:27:24,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 01:27:24,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 01:27:24,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 01:27:24,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 01:27:24,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 01:27:24,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 01:27:24,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 01:27:24,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 01:27:24,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 01:27:24,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 01:27:24,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 01:27:24,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 01:27:24,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 01:27:24,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 01:27:24,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 01:27:24,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 01:27:24,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 01:27:24,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 01:27:24,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 01:27:24,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 01:27:24,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 01:27:24,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 01:27:24,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 01:27:24,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 01:27:24,176 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-04 01:27:24,206 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 01:27:24,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 01:27:24,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 01:27:24,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 01:27:24,208 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 01:27:24,208 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 01:27:24,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 01:27:24,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 01:27:24,209 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 01:27:24,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 01:27:24,210 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 01:27:24,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 01:27:24,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 01:27:24,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 01:27:24,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 01:27:24,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 01:27:24,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 01:27:24,211 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 01:27:24,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 01:27:24,211 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 01:27:24,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 01:27:24,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 01:27:24,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 01:27:24,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 01:27:24,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 01:27:24,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:27:24,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 01:27:24,212 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 01:27:24,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 01:27:24,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 01:27:24,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 01:27:24,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 01:27:24,213 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 01:27:24,213 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 01:27:24,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 01:27:24,213 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 01:27:24,213 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 01:27:24,213 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 01:27:24,214 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 01:27:24,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 01:27:24,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 01:27:24,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 01:27:24,455 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 01:27:24,456 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 01:27:24,457 INFO L432 ainManager$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 01:27:24,457 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 01:27:24,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 01:27:24,481 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 01:27:24,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 01:27:24,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 01:27:24,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 01:27:24,491 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 01:27:24" (1/1) ... [2022-03-04 01:27:24,497 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 01:27:24" (1/1) ... [2022-03-04 01:27:24,502 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 01:27:24,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 01:27:24,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 01:27:24,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 01:27:24,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 01:27:24,511 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 01:27:24" (1/1) ... [2022-03-04 01:27:24,511 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 01:27:24" (1/1) ... [2022-03-04 01:27:24,512 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 01:27:24" (1/1) ... [2022-03-04 01:27:24,512 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 01:27:24" (1/1) ... [2022-03-04 01:27:24,514 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 01:27:24" (1/1) ... [2022-03-04 01:27:24,517 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 01:27:24" (1/1) ... [2022-03-04 01:27:24,517 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 01:27:24" (1/1) ... [2022-03-04 01:27:24,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 01:27:24,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 01:27:24,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 01:27:24,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 01:27:24,521 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 01:27:24" (1/1) ... [2022-03-04 01:27:24,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:27:24,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:27:24,548 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 01:27:24,571 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 01:27:24,588 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 01:27:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 01:27:24,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 01:27:24,588 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 01:27:24,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 01:27:24,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 01:27:24,588 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 01:27:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 01:27:24,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 01:27:24,589 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 01:27:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 01:27:24,590 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 01:27:24,590 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-04 01:27:24,591 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-04 01:27:24,591 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-04 01:27:24,592 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 01:27:24,630 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 01:27:24,631 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 01:27:24,762 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 01:27:24,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 01:27:24,788 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 01:27:24,790 INFO L202 PluginConnector]: Adding new model buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:27:24 BoogieIcfgContainer [2022-03-04 01:27:24,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 01:27:24,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 01:27:24,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 01:27:24,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 01:27:24,796 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 01:27:24" (1/2) ... [2022-03-04 01:27:24,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5040b425 and model type buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 01:27:24, skipping insertion in model container [2022-03-04 01:27:24,797 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 01:27:24" (2/2) ... [2022-03-04 01:27:24,798 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-mult.wvr.bpl [2022-03-04 01:27:24,802 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 01:27:24,802 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 01:27:24,802 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 01:27:24,802 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 01:27:24,878 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-04 01:27:24,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 01:27:24,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:27:24,959 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 01:27:24,972 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 01:27:25,001 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 01:27:25,013 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-04 01:27:25,014 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-04 01:27:25,580 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1006 transitions and produced 792 states. [2022-03-04 01:27:25,582 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 01:27:25,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:27:25,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1395233696, now seen corresponding path program 1 times [2022-03-04 01:27:25,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:27:25,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473062602] [2022-03-04 01:27:25,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:27:25,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:27:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:27:28,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2517 backedges. 1114 proven. 1348 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-03-04 01:27:28,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:27:28,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473062602] [2022-03-04 01:27:28,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473062602] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:27:28,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165035890] [2022-03-04 01:27:28,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:27:28,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:27:28,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:27:28,268 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 01:27:28,269 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 01:27:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:27:28,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 43 conjunts are in the unsatisfiable core [2022-03-04 01:27:28,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:27:31,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2517 backedges. 1177 proven. 1085 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-03-04 01:27:31,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:27:32,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2517 backedges. 1999 proven. 216 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2022-03-04 01:27:32,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165035890] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:27:32,454 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:27:32,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 42, 18] total 125 [2022-03-04 01:27:32,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131069616] [2022-03-04 01:27:32,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:27:32,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2022-03-04 01:27:32,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:27:32,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2022-03-04 01:27:32,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1679, Invalid=14071, Unknown=0, NotChecked=0, Total=15750 [2022-03-04 01:27:32,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:27:32,490 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:27:32,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 126 states have (on average 3.4682539682539684) internal successors, (437), 125 states have internal predecessors, (437), 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 01:27:32,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:27:44,643 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1827 transitions and produced 1419 states. [2022-03-04 01:27:44,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-03-04 01:27:44,671 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 01:27:44,859 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 01:27:44,860 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 01:27:44,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:27:44,861 INFO L85 PathProgramCache]: Analyzing trace with hash 877508605, now seen corresponding path program 2 times [2022-03-04 01:27:44,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:27:44,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976506064] [2022-03-04 01:27:44,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:27:44,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:27:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:27:46,091 INFO L134 CoverageAnalysis]: Checked inductivity of 5865 backedges. 3021 proven. 925 refuted. 0 times theorem prover too weak. 1919 trivial. 0 not checked. [2022-03-04 01:27:46,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:27:46,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976506064] [2022-03-04 01:27:46,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976506064] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:27:46,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233869988] [2022-03-04 01:27:46,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 01:27:46,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:27:46,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:27:46,095 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 01:27:46,099 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 01:27:46,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 01:27:46,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:27:46,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 54 conjunts are in the unsatisfiable core [2022-03-04 01:27:46,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:27:48,883 INFO L134 CoverageAnalysis]: Checked inductivity of 5865 backedges. 2673 proven. 925 refuted. 0 times theorem prover too weak. 2267 trivial. 0 not checked. [2022-03-04 01:27:48,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:27:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 5865 backedges. 2673 proven. 925 refuted. 0 times theorem prover too weak. 2267 trivial. 0 not checked. [2022-03-04 01:27:51,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233869988] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:27:51,845 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:27:51,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 157 [2022-03-04 01:27:51,846 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657587207] [2022-03-04 01:27:51,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:27:51,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 158 states [2022-03-04 01:27:51,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:27:51,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2022-03-04 01:27:51,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3315, Invalid=21491, Unknown=0, NotChecked=0, Total=24806 [2022-03-04 01:27:51,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:27:51,855 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:27:51,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 158 states, 158 states have (on average 2.981012658227848) internal successors, (471), 157 states have internal predecessors, (471), 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 01:27:51,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-03-04 01:27:51,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:28:01,805 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2475 transitions and produced 1919 states. [2022-03-04 01:28:01,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 330 states. [2022-03-04 01:28:01,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2022-03-04 01:28:01,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 01:28:02,007 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 01:28:02,008 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 01:28:02,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:28:02,009 INFO L85 PathProgramCache]: Analyzing trace with hash -386614491, now seen corresponding path program 3 times [2022-03-04 01:28:02,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:28:02,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633519152] [2022-03-04 01:28:02,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:28:02,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:28:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:28:02,146 INFO L134 CoverageAnalysis]: Checked inductivity of 14363 backedges. 637 proven. 0 refuted. 0 times theorem prover too weak. 13726 trivial. 0 not checked. [2022-03-04 01:28:02,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:28:02,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633519152] [2022-03-04 01:28:02,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633519152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 01:28:02,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 01:28:02,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 01:28:02,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538557306] [2022-03-04 01:28:02,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 01:28:02,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 01:28:02,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:28:02,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 01:28:02,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 01:28:02,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:28:02,159 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:28:02,159 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 01:28:02,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 330 states. [2022-03-04 01:28:02,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. [2022-03-04 01:28:02,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:28:03,262 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3278 transitions and produced 2265 states. [2022-03-04 01:28:03,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 334 states. [2022-03-04 01:28:03,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2022-03-04 01:28:03,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:28:03,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-04 01:28:03,263 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 01:28:03,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:28:03,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1283946805, now seen corresponding path program 4 times [2022-03-04 01:28:03,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:28:03,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563979605] [2022-03-04 01:28:03,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:28:03,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:28:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:28:13,043 INFO L134 CoverageAnalysis]: Checked inductivity of 15925 backedges. 4682 proven. 10219 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked. [2022-03-04 01:28:13,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:28:13,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563979605] [2022-03-04 01:28:13,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563979605] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:28:13,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507214201] [2022-03-04 01:28:13,044 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 01:28:13,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:28:13,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:28:13,045 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 01:28:13,046 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 01:28:13,215 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 01:28:13,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:28:13,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 1315 conjuncts, 89 conjunts are in the unsatisfiable core [2022-03-04 01:28:13,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:28:22,134 INFO L134 CoverageAnalysis]: Checked inductivity of 15925 backedges. 7204 proven. 4351 refuted. 0 times theorem prover too weak. 4370 trivial. 0 not checked. [2022-03-04 01:28:22,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:28:25,911 INFO L134 CoverageAnalysis]: Checked inductivity of 15925 backedges. 8378 proven. 3050 refuted. 0 times theorem prover too weak. 4497 trivial. 0 not checked. [2022-03-04 01:28:25,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507214201] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:28:25,911 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:28:25,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 88, 32] total 310 [2022-03-04 01:28:25,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404869036] [2022-03-04 01:28:25,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:28:25,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 311 states [2022-03-04 01:28:25,913 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:28:25,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 311 interpolants. [2022-03-04 01:28:25,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7924, Invalid=88486, Unknown=0, NotChecked=0, Total=96410 [2022-03-04 01:28:25,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:28:25,923 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:28:25,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 311 states, 311 states have (on average 2.8810289389067525) internal successors, (896), 310 states have internal predecessors, (896), 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 01:28:25,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 334 states. [2022-03-04 01:28:25,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. [2022-03-04 01:28:25,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:28:25,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:29:01,625 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2922 transitions and produced 2232 states. [2022-03-04 01:29:01,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 334 states. [2022-03-04 01:29:01,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2022-03-04 01:29:01,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:29:01,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 418 states. [2022-03-04 01:29:01,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-04 01:29:01,831 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 01:29:01,832 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 01:29:01,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:29:01,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1422091902, now seen corresponding path program 5 times [2022-03-04 01:29:01,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:29:01,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311726616] [2022-03-04 01:29:01,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:29:01,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:29:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:29:09,829 INFO L134 CoverageAnalysis]: Checked inductivity of 14262 backedges. 5635 proven. 5282 refuted. 0 times theorem prover too weak. 3345 trivial. 0 not checked. [2022-03-04 01:29:09,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:29:09,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311726616] [2022-03-04 01:29:09,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311726616] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:29:09,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872980048] [2022-03-04 01:29:09,830 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 01:29:09,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:29:09,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:29:09,832 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 01:29:09,833 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 01:29:10,161 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 80 check-sat command(s) [2022-03-04 01:29:10,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:29:10,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 130 conjunts are in the unsatisfiable core [2022-03-04 01:29:10,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:29:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 14262 backedges. 6365 proven. 6654 refuted. 0 times theorem prover too weak. 1243 trivial. 0 not checked. [2022-03-04 01:29:22,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:29:32,597 INFO L134 CoverageAnalysis]: Checked inductivity of 14262 backedges. 6365 proven. 6654 refuted. 0 times theorem prover too weak. 1243 trivial. 0 not checked. [2022-03-04 01:29:32,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872980048] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:29:32,597 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:29:32,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [157, 129, 81] total 365 [2022-03-04 01:29:32,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209825788] [2022-03-04 01:29:32,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:29:32,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 366 states [2022-03-04 01:29:32,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:29:32,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 366 interpolants. [2022-03-04 01:29:32,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19169, Invalid=114421, Unknown=0, NotChecked=0, Total=133590 [2022-03-04 01:29:32,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:29:32,612 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:29:32,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 366 states, 366 states have (on average 3.1557377049180326) internal successors, (1155), 365 states have internal predecessors, (1155), 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 01:29:32,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 334 states. [2022-03-04 01:29:32,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. [2022-03-04 01:29:32,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:29:32,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 418 states. [2022-03-04 01:29:32,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:30:34,748 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5843 transitions and produced 3808 states. [2022-03-04 01:30:34,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 334 states. [2022-03-04 01:30:34,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2022-03-04 01:30:34,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:30:34,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 732 states. [2022-03-04 01:30:34,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-03-04 01:30:34,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 01:30:34,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:30:34,950 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 01:30:34,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:30:34,950 INFO L85 PathProgramCache]: Analyzing trace with hash 751577018, now seen corresponding path program 6 times [2022-03-04 01:30:34,950 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:30:34,950 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790784783] [2022-03-04 01:30:34,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:30:34,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:30:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:31:09,795 INFO L134 CoverageAnalysis]: Checked inductivity of 50974 backedges. 16912 proven. 29225 refuted. 0 times theorem prover too weak. 4837 trivial. 0 not checked. [2022-03-04 01:31:09,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:31:09,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790784783] [2022-03-04 01:31:09,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790784783] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:31:09,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137081893] [2022-03-04 01:31:09,798 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 01:31:09,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:31:09,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:31:09,799 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 01:31:09,800 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 01:31:12,090 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 176 check-sat command(s) [2022-03-04 01:31:12,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:31:12,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 2194 conjuncts, 81 conjunts are in the unsatisfiable core [2022-03-04 01:31:12,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:31:23,714 INFO L134 CoverageAnalysis]: Checked inductivity of 50974 backedges. 30621 proven. 5020 refuted. 0 times theorem prover too weak. 15333 trivial. 0 not checked. [2022-03-04 01:31:23,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:31:30,660 INFO L134 CoverageAnalysis]: Checked inductivity of 50974 backedges. 30621 proven. 5020 refuted. 0 times theorem prover too weak. 15333 trivial. 0 not checked. [2022-03-04 01:31:30,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137081893] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:31:30,661 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:31:30,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [364, 69, 69] total 490 [2022-03-04 01:31:30,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147559090] [2022-03-04 01:31:30,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:31:30,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 491 states [2022-03-04 01:31:30,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:31:30,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 491 interpolants. [2022-03-04 01:31:30,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38898, Invalid=201692, Unknown=0, NotChecked=0, Total=240590 [2022-03-04 01:31:30,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:31:30,692 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:31:30,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 491 states, 491 states have (on average 2.409368635437882) internal successors, (1183), 490 states have internal predecessors, (1183), 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 01:31:30,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 334 states. [2022-03-04 01:31:30,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. [2022-03-04 01:31:30,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:31:30,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 732 states. [2022-03-04 01:31:30,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 503 states. [2022-03-04 01:31:30,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.