/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 05:45:32,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 05:45:32,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 05:45:32,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-16 05:45:32,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 05:45:32,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 05:45:32,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 05:45:32,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 05:45:32,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 05:45:32,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 05:45:32,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 05:45:32,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 05:45:32,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 05:45:32,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 05:45:32,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 05:45:32,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 05:45:32,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-16 05:45:32,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 05:45:32,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 05:45:32,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 05:45:32,245 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.epf [2022-02-16 05:45:32,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 05:45:32,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 05:45:32,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 05:45:32,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 05:45:32,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 05:45:32,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 05:45:32,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 05:45:32,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 05:45:32,269 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 05:45:32,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 05:45:32,270 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 05:45:32,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 05:45:32,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 05:45:32,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 05:45:32,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 05:45:32,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 05:45:32,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 05:45:32,270 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 05:45:32,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 05:45:32,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 05:45:32,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 05:45:32,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 05:45:32,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 05:45:32,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 05:45:32,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 05:45:32,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 05:45:32,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 05:45:32,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 05:45:32,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 05:45:32,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 05:45:32,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 05:45:32,272 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 05:45:32,272 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 05:45:32,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 05:45:32,272 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 05:45:32,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 05:45:32,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 05:45:32,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 05:45:32,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 05:45:32,474 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-16 05:45:32,475 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-16 05:45:32,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl [2022-02-16 05:45:32,476 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl' [2022-02-16 05:45:32,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 05:45:32,505 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-16 05:45:32,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 05:45:32,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 05:45:32,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 05:45:32,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:45:32" (1/1) ... [2022-02-16 05:45:32,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:45:32" (1/1) ... [2022-02-16 05:45:32,523 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-16 05:45:32,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 05:45:32,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 05:45:32,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 05:45:32,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 05:45:32,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:45:32" (1/1) ... [2022-02-16 05:45:32,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:45:32" (1/1) ... [2022-02-16 05:45:32,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:45:32" (1/1) ... [2022-02-16 05:45:32,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:45:32" (1/1) ... [2022-02-16 05:45:32,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:45:32" (1/1) ... [2022-02-16 05:45:32,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:45:32" (1/1) ... [2022-02-16 05:45:32,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:45:32" (1/1) ... [2022-02-16 05:45:32,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 05:45:32,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 05:45:32,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 05:45:32,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 05:45:32,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:45:32" (1/1) ... [2022-02-16 05:45:32,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 05:45:32,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:45:32,570 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) [2022-02-16 05:45:32,575 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 [2022-02-16 05:45:32,599 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-16 05:45:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-16 05:45:32,599 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-16 05:45:32,599 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-16 05:45:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-16 05:45:32,599 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-16 05:45:32,599 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-16 05:45:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 05:45:32,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 05:45:32,600 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-16 05:45:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-16 05:45:32,600 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-16 05:45:32,601 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-16 05:45:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-16 05:45:32,602 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-16 05:45:32,602 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 05:45:32,638 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 05:45:32,639 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 05:45:32,753 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 05:45:32,768 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 05:45:32,768 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 05:45:32,770 INFO L202 PluginConnector]: Adding new model min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:45:32 BoogieIcfgContainer [2022-02-16 05:45:32,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 05:45:32,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 05:45:32,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 05:45:32,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 05:45:32,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:45:32" (1/2) ... [2022-02-16 05:45:32,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b08a88 and model type min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:45:32, skipping insertion in model container [2022-02-16 05:45:32,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:45:32" (2/2) ... [2022-02-16 05:45:32,814 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-dec.wvr.bpl [2022-02-16 05:45:32,818 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 05:45:32,818 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 05:45:32,818 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 05:45:32,818 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 05:45:32,845 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-16 05:45:32,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 05:45:32,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:45:32,930 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) [2022-02-16 05:45:32,954 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 [2022-02-16 05:45:32,962 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 05:45:32,970 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=false, 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 [2022-02-16 05:45:32,971 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-16 05:45:32,983 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 35 transitions, 102 flow [2022-02-16 05:45:33,088 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 710 states, 709 states have (on average 3.6473906911142455) internal successors, (2586), 709 states have internal predecessors, (2586), 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) [2022-02-16 05:45:33,135 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 359 transitions and produced 319 states. [2022-02-16 05:45:33,137 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:45:33,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:45:33,143 INFO L85 PathProgramCache]: Analyzing trace with hash -344369045, now seen corresponding path program 1 times [2022-02-16 05:45:33,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:45:33,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428121462] [2022-02-16 05:45:33,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:45:33,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:45:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:45:33,601 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 70 proven. 139 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-02-16 05:45:33,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:45:33,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428121462] [2022-02-16 05:45:33,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428121462] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:45:33,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874300819] [2022-02-16 05:45:33,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:45:33,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:45:33,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:45:33,608 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) [2022-02-16 05:45:33,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 05:45:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:45:33,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-16 05:45:33,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:45:33,916 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 87 proven. 122 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-02-16 05:45:33,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:45:34,156 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 87 proven. 122 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-02-16 05:45:34,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874300819] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:45:34,156 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:45:34,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 27 [2022-02-16 05:45:34,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038260591] [2022-02-16 05:45:34,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:45:34,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-16 05:45:34,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:45:34,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-16 05:45:34,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2022-02-16 05:45:34,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:45:34,184 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:45:34,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 27 states have internal predecessors, (122), 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) [2022-02-16 05:45:34,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:45:34,723 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 401 transitions and produced 356 states. [2022-02-16 05:45:34,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:45:34,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-16 05:45:34,924 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 [2022-02-16 05:45:34,925 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:45:34,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:45:34,926 INFO L85 PathProgramCache]: Analyzing trace with hash 2095025683, now seen corresponding path program 2 times [2022-02-16 05:45:34,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:45:34,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652222123] [2022-02-16 05:45:34,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:45:34,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:45:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:45:35,422 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 214 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 05:45:35,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:45:35,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652222123] [2022-02-16 05:45:35,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652222123] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:45:35,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142007182] [2022-02-16 05:45:35,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 05:45:35,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:45:35,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:45:35,424 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) [2022-02-16 05:45:35,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-16 05:45:35,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 05:45:35,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:45:35,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-16 05:45:35,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:45:35,991 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 156 proven. 89 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-02-16 05:45:35,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:45:36,185 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 156 proven. 89 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-02-16 05:45:36,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142007182] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:45:36,186 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:45:36,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 20, 20] total 56 [2022-02-16 05:45:36,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362158870] [2022-02-16 05:45:36,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:45:36,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-02-16 05:45:36,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:45:36,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-02-16 05:45:36,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=2811, Unknown=0, NotChecked=0, Total=3192 [2022-02-16 05:45:36,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:45:36,191 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:45:36,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 2.9649122807017543) internal successors, (169), 56 states have internal predecessors, (169), 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) [2022-02-16 05:45:36,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:45:36,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:45:37,622 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 482 transitions and produced 424 states. [2022-02-16 05:45:37,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:45:37,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-16 05:45:37,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-16 05:45:37,838 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 [2022-02-16 05:45:37,839 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:45:37,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:45:37,839 INFO L85 PathProgramCache]: Analyzing trace with hash -857448187, now seen corresponding path program 3 times [2022-02-16 05:45:37,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:45:37,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039036872] [2022-02-16 05:45:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:45:37,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:45:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:45:38,451 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 412 proven. 202 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 05:45:38,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:45:38,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039036872] [2022-02-16 05:45:38,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039036872] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:45:38,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009661486] [2022-02-16 05:45:38,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 05:45:38,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:45:38,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:45:38,453 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) [2022-02-16 05:45:38,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-16 05:45:38,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2022-02-16 05:45:38,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:45:38,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 27 conjunts are in the unsatisfiable core [2022-02-16 05:45:38,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:45:39,135 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 387 proven. 100 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-02-16 05:45:39,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:45:39,524 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 387 proven. 100 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-02-16 05:45:39,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009661486] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:45:39,525 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:45:39,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 27, 27] total 73 [2022-02-16 05:45:39,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251878153] [2022-02-16 05:45:39,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:45:39,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-02-16 05:45:39,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:45:39,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-02-16 05:45:39,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=835, Invalid=4567, Unknown=0, NotChecked=0, Total=5402 [2022-02-16 05:45:39,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:45:39,527 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:45:39,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 2.7972972972972974) internal successors, (207), 73 states have internal predecessors, (207), 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) [2022-02-16 05:45:39,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:45:39,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-16 05:45:39,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:45:40,344 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 628 transitions and produced 538 states. [2022-02-16 05:45:40,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:45:40,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:45:40,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:45:40,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-16 05:45:40,560 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 [2022-02-16 05:45:40,560 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:45:40,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:45:40,561 INFO L85 PathProgramCache]: Analyzing trace with hash 390292173, now seen corresponding path program 4 times [2022-02-16 05:45:40,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:45:40,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802247830] [2022-02-16 05:45:40,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:45:40,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:45:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:45:41,050 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 324 proven. 498 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-02-16 05:45:41,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:45:41,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802247830] [2022-02-16 05:45:41,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802247830] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:45:41,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23962540] [2022-02-16 05:45:41,051 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-16 05:45:41,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:45:41,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:45:41,052 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) [2022-02-16 05:45:41,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-16 05:45:41,118 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-16 05:45:41,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:45:41,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 40 conjunts are in the unsatisfiable core [2022-02-16 05:45:41,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:45:42,128 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 434 proven. 369 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-02-16 05:45:42,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:45:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 434 proven. 369 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-02-16 05:45:42,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23962540] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:45:42,429 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:45:42,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 38, 38] total 76 [2022-02-16 05:45:42,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833828728] [2022-02-16 05:45:42,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:45:42,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-02-16 05:45:42,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:45:42,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-02-16 05:45:42,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=803, Invalid=5049, Unknown=0, NotChecked=0, Total=5852 [2022-02-16 05:45:42,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:45:42,433 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:45:42,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 2.9220779220779223) internal successors, (225), 76 states have internal predecessors, (225), 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) [2022-02-16 05:45:42,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:45:42,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:45:42,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:45:42,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:45:45,241 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 719 transitions and produced 616 states. [2022-02-16 05:45:45,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:45:45,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:45:45,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:45:45,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-16 05:45:45,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-16 05:45:45,447 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 [2022-02-16 05:45:45,447 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:45:45,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:45:45,448 INFO L85 PathProgramCache]: Analyzing trace with hash -714641837, now seen corresponding path program 5 times [2022-02-16 05:45:45,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:45:45,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714646600] [2022-02-16 05:45:45,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:45:45,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:45:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:45:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 324 proven. 707 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-02-16 05:45:45,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:45:45,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714646600] [2022-02-16 05:45:45,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714646600] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:45:45,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381439680] [2022-02-16 05:45:45,982 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-16 05:45:45,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:45:45,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:45:45,983 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) [2022-02-16 05:45:45,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-16 05:45:46,783 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 27 check-sat command(s) [2022-02-16 05:45:46,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:45:46,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 43 conjunts are in the unsatisfiable core [2022-02-16 05:45:46,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:45:47,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 646 proven. 400 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2022-02-16 05:45:47,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:45:48,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 646 proven. 400 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2022-02-16 05:45:48,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381439680] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:45:48,251 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:45:48,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 43, 43] total 83 [2022-02-16 05:45:48,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179240177] [2022-02-16 05:45:48,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:45:48,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-02-16 05:45:48,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:45:48,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-02-16 05:45:48,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=6026, Unknown=0, NotChecked=0, Total=6972 [2022-02-16 05:45:48,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:45:48,256 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:45:48,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 2.4761904761904763) internal successors, (208), 83 states have internal predecessors, (208), 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) [2022-02-16 05:45:48,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:45:48,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:45:48,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:45:48,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-16 05:45:48,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:45:50,112 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 807 transitions and produced 692 states. [2022-02-16 05:45:50,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:45:50,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:45:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:45:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-16 05:45:50,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-16 05:45:50,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-16 05:45:50,335 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 [2022-02-16 05:45:50,335 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:45:50,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:45:50,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1338061323, now seen corresponding path program 6 times [2022-02-16 05:45:50,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:45:50,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044638044] [2022-02-16 05:45:50,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:45:50,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:45:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:45:50,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 576 proven. 823 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-02-16 05:45:50,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:45:50,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044638044] [2022-02-16 05:45:50,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044638044] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:45:50,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313979056] [2022-02-16 05:45:50,999 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-16 05:45:50,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:45:50,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:45:51,000 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) [2022-02-16 05:45:51,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-16 05:45:51,211 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2022-02-16 05:45:51,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:45:51,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 40 conjunts are in the unsatisfiable core [2022-02-16 05:45:51,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:46:00,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:00,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:00,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:00,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:00,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:00,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:00,927 INFO L353 Elim1Store]: treesize reduction 52, result has 48.5 percent of original size [2022-02-16 05:46:00,928 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 248 treesize of output 147 [2022-02-16 05:46:06,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:06,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:06,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:06,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:06,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:06,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:06,396 INFO L353 Elim1Store]: treesize reduction 52, result has 48.5 percent of original size [2022-02-16 05:46:06,396 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 599 treesize of output 328 [2022-02-16 05:46:12,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:12,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:12,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:12,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:12,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:12,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:12,366 INFO L353 Elim1Store]: treesize reduction 28, result has 73.3 percent of original size [2022-02-16 05:46:12,366 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 556 treesize of output 358 [2022-02-16 05:46:15,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:46:15,533 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 43 [2022-02-16 05:46:15,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 308 proven. 420 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked. [2022-02-16 05:46:15,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:46:16,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 05:46:16,579 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 39 [2022-02-16 05:46:47,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 367 proven. 352 refuted. 0 times theorem prover too weak. 1086 trivial. 0 not checked. [2022-02-16 05:46:47,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313979056] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:46:47,331 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:46:47,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 23, 23] total 90 [2022-02-16 05:46:47,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148971055] [2022-02-16 05:46:47,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:46:47,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-02-16 05:46:47,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:46:47,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-02-16 05:46:47,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=919, Invalid=7089, Unknown=2, NotChecked=0, Total=8010 [2022-02-16 05:46:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:46:47,333 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:46:47,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 2.5555555555555554) internal successors, (230), 90 states have internal predecessors, (230), 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) [2022-02-16 05:46:47,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:46:47,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:46:47,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:46:47,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-16 05:46:47,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-16 05:46:47,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:00,224 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 789 transitions and produced 652 states. [2022-02-16 05:47:00,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:00,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:47:00,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:47:00,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-16 05:47:00,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-16 05:47:00,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-16 05:47:00,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-16 05:47:00,441 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 [2022-02-16 05:47:00,442 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:47:00,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:47:00,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1535042943, now seen corresponding path program 7 times [2022-02-16 05:47:00,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:47:00,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681408392] [2022-02-16 05:47:00,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:47:00,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:47:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:47:01,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 576 proven. 770 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-02-16 05:47:01,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:47:01,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681408392] [2022-02-16 05:47:01,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681408392] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:47:01,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114562443] [2022-02-16 05:47:01,246 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-16 05:47:01,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:47:01,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:47:01,247 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 05:47:01,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-16 05:47:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:47:01,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 48 conjunts are in the unsatisfiable core [2022-02-16 05:47:01,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:47:01,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 625 proven. 721 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-02-16 05:47:01,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:47:02,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 625 proven. 721 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-02-16 05:47:02,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114562443] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:47:02,089 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:47:02,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 59 [2022-02-16 05:47:02,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117970606] [2022-02-16 05:47:02,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:47:02,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-16 05:47:02,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:47:02,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-16 05:47:02,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=913, Invalid=2627, Unknown=0, NotChecked=0, Total=3540 [2022-02-16 05:47:02,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:02,091 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:47:02,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 2.933333333333333) internal successors, (176), 59 states have internal predecessors, (176), 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) [2022-02-16 05:47:02,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:02,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:47:02,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:47:02,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-16 05:47:02,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-16 05:47:02,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-16 05:47:02,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:03,569 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 887 transitions and produced 755 states. [2022-02-16 05:47:03,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:03,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:47:03,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:47:03,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-16 05:47:03,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-16 05:47:03,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-16 05:47:03,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:47:03,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-16 05:47:03,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-16 05:47:03,774 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:47:03,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:47:03,775 INFO L85 PathProgramCache]: Analyzing trace with hash -985651273, now seen corresponding path program 8 times [2022-02-16 05:47:03,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:47:03,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070404020] [2022-02-16 05:47:03,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:47:03,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:47:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:47:04,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2313 backedges. 1231 proven. 676 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-02-16 05:47:04,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:47:04,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070404020] [2022-02-16 05:47:04,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070404020] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:47:04,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704474970] [2022-02-16 05:47:04,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 05:47:04,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:47:04,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:47:04,888 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 05:47:04,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-16 05:47:04,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 05:47:04,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:47:04,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 55 conjunts are in the unsatisfiable core [2022-02-16 05:47:04,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:47:05,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2313 backedges. 1211 proven. 676 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-02-16 05:47:05,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:47:05,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2313 backedges. 1211 proven. 676 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-02-16 05:47:05,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704474970] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:47:05,586 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:47:05,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 55, 55] total 60 [2022-02-16 05:47:05,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042689742] [2022-02-16 05:47:05,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:47:05,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-02-16 05:47:05,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:47:05,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-02-16 05:47:05,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=962, Invalid=2698, Unknown=0, NotChecked=0, Total=3660 [2022-02-16 05:47:05,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:05,588 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:47:05,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 2.557377049180328) internal successors, (156), 60 states have internal predecessors, (156), 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) [2022-02-16 05:47:05,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:05,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:47:05,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:47:05,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-16 05:47:05,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-16 05:47:05,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-16 05:47:05,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:47:05,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:23,099 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5301 transitions and produced 2222 states. [2022-02-16 05:47:23,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:23,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:47:23,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:47:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-16 05:47:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-16 05:47:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-02-16 05:47:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:47:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:47:23,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-16 05:47:23,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:47:23,302 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:47:23,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:47:23,303 INFO L85 PathProgramCache]: Analyzing trace with hash -72056275, now seen corresponding path program 9 times [2022-02-16 05:47:23,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:47:23,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837400529] [2022-02-16 05:47:23,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:47:23,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:47:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:47:24,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3506 backedges. 900 proven. 2157 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2022-02-16 05:47:24,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:47:24,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837400529] [2022-02-16 05:47:24,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837400529] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:47:24,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291633584] [2022-02-16 05:47:24,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 05:47:24,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:47:24,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:47:24,544 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 05:47:24,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-16 05:47:26,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 39 check-sat command(s) [2022-02-16 05:47:26,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:47:26,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 65 conjunts are in the unsatisfiable core [2022-02-16 05:47:26,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:47:27,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3506 backedges. 961 proven. 2096 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2022-02-16 05:47:27,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:47:27,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3506 backedges. 961 proven. 2096 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2022-02-16 05:47:27,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291633584] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:47:27,652 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:47:27,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 66 [2022-02-16 05:47:27,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777844800] [2022-02-16 05:47:27,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:47:27,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-02-16 05:47:27,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:47:27,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-02-16 05:47:27,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1124, Invalid=3298, Unknown=0, NotChecked=0, Total=4422 [2022-02-16 05:47:27,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:27,654 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:47:27,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.5671641791044775) internal successors, (172), 66 states have internal predecessors, (172), 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) [2022-02-16 05:47:27,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:27,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:47:27,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:47:27,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-02-16 05:47:27,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-16 05:47:27,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-02-16 05:47:27,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:47:27,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:47:27,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:29,639 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 960 transitions and produced 816 states. [2022-02-16 05:47:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:47:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:47:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-16 05:47:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-16 05:47:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-02-16 05:47:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:47:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:47:29,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-16 05:47:29,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-16 05:47:29,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-16 05:47:29,873 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:47:29,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:47:29,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1053780763, now seen corresponding path program 10 times [2022-02-16 05:47:29,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:47:29,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546608830] [2022-02-16 05:47:29,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:47:29,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:47:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:47:32,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2724 backedges. 1747 proven. 977 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 05:47:32,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:47:32,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546608830] [2022-02-16 05:47:32,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546608830] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:47:32,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843116711] [2022-02-16 05:47:32,106 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-16 05:47:32,106 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:47:32,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:47:32,107 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 05:47:32,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-16 05:47:32,226 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-16 05:47:32,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:47:32,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 60 conjunts are in the unsatisfiable core [2022-02-16 05:47:32,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:47:35,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2724 backedges. 1138 proven. 745 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2022-02-16 05:47:35,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:47:36,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2724 backedges. 1138 proven. 745 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2022-02-16 05:47:36,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843116711] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:47:36,087 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:47:36,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 60, 60] total 161 [2022-02-16 05:47:36,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793854584] [2022-02-16 05:47:36,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:47:36,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 162 states [2022-02-16 05:47:36,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:47:36,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2022-02-16 05:47:36,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2795, Invalid=23287, Unknown=0, NotChecked=0, Total=26082 [2022-02-16 05:47:36,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:36,093 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:47:36,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 162 states, 162 states have (on average 2.3395061728395063) internal successors, (379), 161 states have internal predecessors, (379), 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) [2022-02-16 05:47:36,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:36,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:47:36,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:47:36,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-02-16 05:47:36,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-16 05:47:36,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-02-16 05:47:36,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:47:36,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:47:36,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-16 05:47:36,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:45,091 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1129 transitions and produced 952 states. [2022-02-16 05:47:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:47:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:47:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-16 05:47:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-16 05:47:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-02-16 05:47:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:47:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:47:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-16 05:47:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2022-02-16 05:47:45,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-16 05:47:45,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-16 05:47:45,309 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:47:45,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:47:45,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1029549977, now seen corresponding path program 11 times [2022-02-16 05:47:45,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:47:45,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636950536] [2022-02-16 05:47:45,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:47:45,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:47:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:47:46,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3897 backedges. 2032 proven. 1024 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2022-02-16 05:47:46,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:47:46,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636950536] [2022-02-16 05:47:46,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636950536] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:47:46,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133020628] [2022-02-16 05:47:46,979 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-16 05:47:46,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:47:46,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:47:46,980 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 05:47:46,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-16 05:47:51,736 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 44 check-sat command(s) [2022-02-16 05:47:51,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:47:51,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 78 conjunts are in the unsatisfiable core [2022-02-16 05:47:51,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:47:55,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3897 backedges. 1764 proven. 1103 refuted. 0 times theorem prover too weak. 1030 trivial. 0 not checked. [2022-02-16 05:47:55,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:47:56,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3897 backedges. 1764 proven. 1103 refuted. 0 times theorem prover too weak. 1030 trivial. 0 not checked. [2022-02-16 05:47:56,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133020628] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:47:56,591 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:47:56,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 71, 71] total 167 [2022-02-16 05:47:56,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967003931] [2022-02-16 05:47:56,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:47:56,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 168 states [2022-02-16 05:47:56,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:47:56,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 168 interpolants. [2022-02-16 05:47:56,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3769, Invalid=24287, Unknown=0, NotChecked=0, Total=28056 [2022-02-16 05:47:56,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:56,595 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:47:56,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 168 states, 168 states have (on average 2.4166666666666665) internal successors, (406), 167 states have internal predecessors, (406), 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) [2022-02-16 05:47:56,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:56,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:47:56,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:47:56,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-02-16 05:47:56,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-16 05:47:56,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-02-16 05:47:56,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:47:56,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:47:56,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-16 05:47:56,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2022-02-16 05:47:56,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:48:07,062 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 14743 transitions and produced 5426 states. [2022-02-16 05:48:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:48:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:48:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:48:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-16 05:48:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-16 05:48:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2022-02-16 05:48:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:48:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:48:07,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-16 05:48:07,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2022-02-16 05:48:07,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-02-16 05:48:07,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-16 05:48:07,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-02-16 05:48:07,280 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:48:07,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:48:07,280 INFO L85 PathProgramCache]: Analyzing trace with hash -294506605, now seen corresponding path program 12 times [2022-02-16 05:48:07,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:48:07,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512522837] [2022-02-16 05:48:07,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:48:07,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:48:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:48:12,754 INFO L134 CoverageAnalysis]: Checked inductivity of 7281 backedges. 5209 proven. 2072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 05:48:12,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:48:12,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512522837] [2022-02-16 05:48:12,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512522837] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:48:12,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768962686] [2022-02-16 05:48:12,754 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-16 05:48:12,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:48:12,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:48:12,755 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 05:48:12,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-16 05:48:15,470 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2022-02-16 05:48:15,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:48:15,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 214 conjunts are in the unsatisfiable core [2022-02-16 05:48:15,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-02-16 05:58:54,956 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-16 05:58:54,963 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-16 05:58:54,964 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-16 05:58:54,969 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 [2022-02-16 05:58:54,970 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 [2022-02-16 05:58:54,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-16 05:58:55,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-16 05:58:55,165 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 314 with TraceHistMax 61,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 9 for 7ms.. [2022-02-16 05:58:55,167 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-16 05:58:55,167 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-16 05:58:55,167 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-16 05:58:55,167 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-16 05:58:55,170 INFO L732 BasicCegarLoop]: Path program histogram: [12] [2022-02-16 05:58:55,171 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 05:58:55,172 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 05:58:55,175 INFO L202 PluginConnector]: Adding new model min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 05:58:55 BasicIcfg [2022-02-16 05:58:55,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 05:58:55,177 INFO L158 Benchmark]: Toolchain (without parser) took 802669.86ms. Allocated memory was 204.5MB in the beginning and 471.9MB in the end (delta: 267.4MB). Free memory was 161.8MB in the beginning and 186.3MB in the end (delta: -24.5MB). Peak memory consumption was 381.3MB. Max. memory is 8.0GB. [2022-02-16 05:58:55,178 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 204.5MB. Free memory is still 163.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 05:58:55,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.16ms. Allocated memory is still 204.5MB. Free memory was 161.8MB in the beginning and 160.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-16 05:58:55,179 INFO L158 Benchmark]: Boogie Preprocessor took 19.20ms. Allocated memory is still 204.5MB. Free memory was 160.1MB in the beginning and 159.2MB in the end (delta: 922.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 05:58:55,179 INFO L158 Benchmark]: RCFGBuilder took 225.28ms. Allocated memory is still 204.5MB. Free memory was 159.1MB in the beginning and 149.5MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-16 05:58:55,179 INFO L158 Benchmark]: TraceAbstraction took 802403.85ms. Allocated memory was 204.5MB in the beginning and 471.9MB in the end (delta: 267.4MB). Free memory was 149.0MB in the beginning and 186.3MB in the end (delta: -37.3MB). Peak memory consumption was 367.7MB. Max. memory is 8.0GB. [2022-02-16 05:58:55,180 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 0.09ms. Allocated memory is still 204.5MB. Free memory is still 163.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.16ms. Allocated memory is still 204.5MB. Free memory was 161.8MB in the beginning and 160.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.20ms. Allocated memory is still 204.5MB. Free memory was 160.1MB in the beginning and 159.2MB in the end (delta: 922.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 225.28ms. Allocated memory is still 204.5MB. Free memory was 159.1MB in the beginning and 149.5MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 802403.85ms. Allocated memory was 204.5MB in the beginning and 471.9MB in the end (delta: 267.4MB). Free memory was 149.0MB in the beginning and 186.3MB in the end (delta: -37.3MB). Peak memory consumption was 367.7MB. 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: 77]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 314 with TraceHistMax 61,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 9 for 7ms.. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 314 with TraceHistMax 61,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 9 for 7ms.. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 314 with TraceHistMax 61,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 9 for 7ms.. - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 314 with TraceHistMax 61,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 9 for 7ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 314 with TraceHistMax 61,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 9 for 7ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 56 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 802.3s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 60.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=710occurred in iteration=0, InterpolantAutomatonStates: 1117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 8.7s SatisfiabilityAnalysisTime, 81.6s InterpolantComputationTime, 3482 NumberOfCodeBlocks, 3458 NumberOfCodeBlocksAsserted, 167 NumberOfCheckSat, 5190 ConstructedInterpolants, 110 QuantifiedInterpolants, 45912 SizeOfPredicates, 36 NumberOfNonLiveVariables, 4651 ConjunctsInSsa, 492 ConjunctsInUnsatCore, 33 InterpolantComputations, 0 PerfectInterpolantSequences, 37044/58806 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