/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-POR-NewStatesSleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-11 06:45:47,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-11 06:45:47,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-11 06:45:47,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-11 06:45:47,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-11 06:45:47,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-11 06:45:47,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-11 06:45:47,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-11 06:45:47,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-11 06:45:47,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-11 06:45:47,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-11 06:45:47,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-11 06:45:47,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-11 06:45:47,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-11 06:45:47,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-11 06:45:47,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-11 06:45:47,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-11 06:45:47,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-11 06:45:47,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-11 06:45:47,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-11 06:45:47,189 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-POR-NewStatesSleepPersistent-NoLbe.epf [2022-02-11 06:45:47,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-11 06:45:47,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-11 06:45:47,214 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-11 06:45:47,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-11 06:45:47,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-11 06:45:47,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-11 06:45:47,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-11 06:45:47,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-11 06:45:47,217 INFO L138 SettingsManager]: * Use SBE=true [2022-02-11 06:45:47,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-11 06:45:47,217 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-11 06:45:47,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-11 06:45:47,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-11 06:45:47,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-11 06:45:47,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-11 06:45:47,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-11 06:45:47,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-11 06:45:47,218 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-11 06:45:47,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-11 06:45:47,218 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-11 06:45:47,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-11 06:45:47,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-11 06:45:47,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-11 06:45:47,219 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-11 06:45:47,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-11 06:45:47,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 06:45:47,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-11 06:45:47,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-11 06:45:47,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-11 06:45:47,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-11 06:45:47,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-11 06:45:47,220 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-11 06:45:47,221 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-11 06:45:47,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-11 06:45:47,221 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-11 06:45:47,221 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2022-02-11 06:45:47,221 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-11 06:45:47,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-11 06:45:47,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-11 06:45:47,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-11 06:45:47,422 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-11 06:45:47,424 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-11 06:45:47,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl [2022-02-11 06:45:47,426 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl' [2022-02-11 06:45:47,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-11 06:45:47,447 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-11 06:45:47,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-11 06:45:47,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-11 06:45:47,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-11 06:45:47,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:45:47" (1/1) ... [2022-02-11 06:45:47,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:45:47" (1/1) ... [2022-02-11 06:45:47,466 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-11 06:45:47,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-11 06:45:47,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-11 06:45:47,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-11 06:45:47,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-11 06:45:47,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:45:47" (1/1) ... [2022-02-11 06:45:47,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:45:47" (1/1) ... [2022-02-11 06:45:47,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:45:47" (1/1) ... [2022-02-11 06:45:47,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:45:47" (1/1) ... [2022-02-11 06:45:47,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:45:47" (1/1) ... [2022-02-11 06:45:47,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:45:47" (1/1) ... [2022-02-11 06:45:47,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:45:47" (1/1) ... [2022-02-11 06:45:47,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-11 06:45:47,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-11 06:45:47,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-11 06:45:47,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-11 06:45:47,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:45:47" (1/1) ... [2022-02-11 06:45:47,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 06:45:47,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:45:47,522 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) [2022-02-11 06:45:47,527 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 [2022-02-11 06:45:47,546 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-11 06:45:47,547 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-11 06:45:47,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-11 06:45:47,547 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-11 06:45:47,547 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-11 06:45:47,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-11 06:45:47,547 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-11 06:45:47,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-11 06:45:47,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-11 06:45:47,547 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-11 06:45:47,547 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-11 06:45:47,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-11 06:45:47,548 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-11 06:45:47,585 INFO L234 CfgBuilder]: Building ICFG [2022-02-11 06:45:47,586 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-11 06:45:47,716 INFO L275 CfgBuilder]: Performing block encoding [2022-02-11 06:45:47,771 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-11 06:45:47,772 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-11 06:45:47,781 INFO L202 PluginConnector]: Adding new model ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 06:45:47 BoogieIcfgContainer [2022-02-11 06:45:47,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-11 06:45:47,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-11 06:45:47,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-11 06:45:47,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-11 06:45:47,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:45:47" (1/2) ... [2022-02-11 06:45:47,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae5d2d3 and model type ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.02 06:45:47, skipping insertion in model container [2022-02-11 06:45:47,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 06:45:47" (2/2) ... [2022-02-11 06:45:47,787 INFO L112 eAbstractionObserver]: Analyzing ICFG ring-nondet.wvr.bpl [2022-02-11 06:45:47,790 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-11 06:45:47,790 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-11 06:45:47,791 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-11 06:45:47,791 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-11 06:45:47,837 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-11 06:45:47,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 06:45:47,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:45:47,889 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) [2022-02-11 06:45:47,891 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 [2022-02-11 06:45:47,936 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-11 06:45:47,946 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, 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 [2022-02-11 06:45:47,946 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-11 06:45:48,110 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:45:48,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:45:48,114 INFO L85 PathProgramCache]: Analyzing trace with hash -487359251, now seen corresponding path program 1 times [2022-02-11 06:45:48,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:45:48,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661253629] [2022-02-11 06:45:48,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:45:48,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:45:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:45:48,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:45:48,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:45:48,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661253629] [2022-02-11 06:45:48,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661253629] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:45:48,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513332969] [2022-02-11 06:45:48,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:45:48,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:45:48,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:45:48,295 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) [2022-02-11 06:45:48,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-11 06:45:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:45:48,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-11 06:45:48,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:45:48,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:45:48,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:45:48,633 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-02-11 06:45:48,642 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-02-11 06:45:48,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:45:48,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513332969] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:45:48,750 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:45:48,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-02-11 06:45:48,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105802905] [2022-02-11 06:45:48,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:45:48,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-11 06:45:48,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:45:48,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-11 06:45:48,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-02-11 06:45:48,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:45:48,780 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:45:48,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 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) [2022-02-11 06:45:48,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:45:48,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-11 06:45:48,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-11 06:45:49,195 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 [2022-02-11 06:45:49,196 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:45:49,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:45:49,197 INFO L85 PathProgramCache]: Analyzing trace with hash 133990098, now seen corresponding path program 2 times [2022-02-11 06:45:49,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:45:49,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434651418] [2022-02-11 06:45:49,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:45:49,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:45:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:45:49,293 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-11 06:45:49,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:45:49,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434651418] [2022-02-11 06:45:49,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434651418] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:45:49,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547051696] [2022-02-11 06:45:49,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-11 06:45:49,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:45:49,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:45:49,295 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) [2022-02-11 06:45:49,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-11 06:45:49,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-11 06:45:49,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:45:49,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-11 06:45:49,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:45:49,406 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-02-11 06:45:49,453 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-11 06:45:49,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:45:49,570 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-02-11 06:45:49,574 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-02-11 06:45:49,616 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-11 06:45:49,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547051696] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:45:49,616 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:45:49,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 5 [2022-02-11 06:45:49,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781748757] [2022-02-11 06:45:49,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:45:49,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-11 06:45:49,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:45:49,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-11 06:45:49,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-02-11 06:45:49,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:45:49,618 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:45:49,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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) [2022-02-11 06:45:49,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-11 06:45:49,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:45:49,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-11 06:45:49,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:45:49,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-11 06:45:49,859 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 [2022-02-11 06:45:49,860 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:45:49,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:45:49,860 INFO L85 PathProgramCache]: Analyzing trace with hash 580279540, now seen corresponding path program 3 times [2022-02-11 06:45:49,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:45:49,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025639866] [2022-02-11 06:45:49,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:45:49,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:45:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:45:50,033 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:45:50,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:45:50,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025639866] [2022-02-11 06:45:50,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025639866] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:45:50,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356152049] [2022-02-11 06:45:50,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-11 06:45:50,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:45:50,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:45:50,042 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) [2022-02-11 06:45:50,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-11 06:45:50,102 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-02-11 06:45:50,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:45:50,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-11 06:45:50,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:45:50,700 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 45 [2022-02-11 06:45:50,707 INFO L353 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-02-11 06:45:50,707 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 53 [2022-02-11 06:45:50,755 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 5 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:45:50,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:45:51,639 INFO L353 Elim1Store]: treesize reduction 57, result has 6.6 percent of original size [2022-02-11 06:45:51,640 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 131 [2022-02-11 06:45:51,652 INFO L353 Elim1Store]: treesize reduction 21, result has 27.6 percent of original size [2022-02-11 06:45:51,652 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 125 [2022-02-11 06:45:51,799 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 5 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:45:51,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356152049] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:45:51,800 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:45:51,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2022-02-11 06:45:51,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981573946] [2022-02-11 06:45:51,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:45:51,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-11 06:45:51,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:45:51,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-11 06:45:51,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2022-02-11 06:45:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:45:51,802 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:45:51,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.586206896551724) internal successors, (133), 28 states have internal predecessors, (133), 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) [2022-02-11 06:45:51,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-11 06:45:51,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:45:51,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:45:52,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:45:52,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:45:52,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:45:52,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-11 06:45:52,291 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 [2022-02-11 06:45:52,292 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:45:52,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:45:52,292 INFO L85 PathProgramCache]: Analyzing trace with hash -32296298, now seen corresponding path program 4 times [2022-02-11 06:45:52,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:45:52,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135270179] [2022-02-11 06:45:52,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:45:52,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:45:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:45:52,678 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 1 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:45:52,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:45:52,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135270179] [2022-02-11 06:45:52,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135270179] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:45:52,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563078094] [2022-02-11 06:45:52,679 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-11 06:45:52,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:45:52,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:45:52,684 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) [2022-02-11 06:45:52,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-11 06:45:52,725 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-11 06:45:52,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:45:52,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 22 conjunts are in the unsatisfiable core [2022-02-11 06:45:52,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:45:52,897 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-11 06:45:52,897 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-02-11 06:45:52,966 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-11 06:45:53,017 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 25 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-11 06:45:53,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:45:53,085 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:45:53,085 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-11 06:45:53,266 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-02-11 06:45:53,278 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:45:53,279 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 107 [2022-02-11 06:45:53,496 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 28 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-11 06:45:53,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563078094] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:45:53,496 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:45:53,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 31 [2022-02-11 06:45:53,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730139923] [2022-02-11 06:45:53,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:45:53,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-11 06:45:53,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:45:53,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-11 06:45:53,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992 [2022-02-11 06:45:53,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:45:53,498 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:45:53,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.0) internal successors, (128), 31 states have internal predecessors, (128), 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) [2022-02-11 06:45:53,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:45:53,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:45:53,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:45:53,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:45:54,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:45:54,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:45:54,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:45:54,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-11 06:45:54,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-11 06:45:54,562 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 [2022-02-11 06:45:54,562 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:45:54,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:45:54,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1677643148, now seen corresponding path program 5 times [2022-02-11 06:45:54,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:45:54,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786249081] [2022-02-11 06:45:54,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:45:54,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:45:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:45:54,971 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 76 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-11 06:45:54,972 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:45:54,972 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786249081] [2022-02-11 06:45:54,972 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786249081] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:45:54,972 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278389960] [2022-02-11 06:45:54,972 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-11 06:45:54,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:45:54,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:45:54,973 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) [2022-02-11 06:45:54,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-11 06:45:55,015 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-02-11 06:45:55,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:45:55,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 25 conjunts are in the unsatisfiable core [2022-02-11 06:45:55,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:45:55,349 INFO L353 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-02-11 06:45:55,349 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 13 [2022-02-11 06:45:55,446 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-11 06:45:55,488 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-11 06:45:55,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:45:55,570 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:45:55,571 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-11 06:45:55,938 INFO L353 Elim1Store]: treesize reduction 22, result has 63.9 percent of original size [2022-02-11 06:45:55,939 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 135 [2022-02-11 06:45:55,945 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-02-11 06:45:56,394 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 78 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-11 06:45:56,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278389960] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:45:56,394 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:45:56,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 15] total 42 [2022-02-11 06:45:56,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702370278] [2022-02-11 06:45:56,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:45:56,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-11 06:45:56,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:45:56,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-11 06:45:56,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1595, Unknown=0, NotChecked=0, Total=1806 [2022-02-11 06:45:56,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:45:56,396 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:45:56,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.302325581395349) internal successors, (142), 42 states have internal predecessors, (142), 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) [2022-02-11 06:45:56,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:45:56,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:45:56,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:45:56,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-11 06:45:56,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:45:58,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:45:58,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:45:58,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:45:58,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-11 06:45:58,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-11 06:45:58,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-11 06:45:58,234 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 [2022-02-11 06:45:58,234 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:45:58,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:45:58,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1926835123, now seen corresponding path program 6 times [2022-02-11 06:45:58,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:45:58,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685192608] [2022-02-11 06:45:58,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:45:58,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:45:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:45:58,607 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-02-11 06:45:58,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:45:58,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685192608] [2022-02-11 06:45:58,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685192608] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:45:58,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881114288] [2022-02-11 06:45:58,608 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-11 06:45:58,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:45:58,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:45:58,609 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) [2022-02-11 06:45:58,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-11 06:45:58,665 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2022-02-11 06:45:58,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:45:58,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 37 conjunts are in the unsatisfiable core [2022-02-11 06:45:58,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:45:59,352 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-02-11 06:46:00,016 INFO L353 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2022-02-11 06:46:00,016 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 194 treesize of output 140 [2022-02-11 06:46:00,022 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-02-11 06:46:00,022 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 128 [2022-02-11 06:46:00,209 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-11 06:46:00,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:46:01,546 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:46:01,546 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 27 [2022-02-11 06:46:02,814 INFO L353 Elim1Store]: treesize reduction 224, result has 24.1 percent of original size [2022-02-11 06:46:02,815 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 322 treesize of output 332 [2022-02-11 06:46:02,891 INFO L353 Elim1Store]: treesize reduction 160, result has 26.3 percent of original size [2022-02-11 06:46:02,892 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 270 treesize of output 270 [2022-02-11 06:46:07,534 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-11 06:46:07,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881114288] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:46:07,534 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:46:07,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 17] total 43 [2022-02-11 06:46:07,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021833471] [2022-02-11 06:46:07,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:46:07,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-02-11 06:46:07,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:46:07,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-02-11 06:46:07,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=1545, Unknown=0, NotChecked=0, Total=1892 [2022-02-11 06:46:07,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:46:07,536 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:46:07,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.4545454545454546) internal successors, (108), 43 states have internal predecessors, (108), 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) [2022-02-11 06:46:07,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:46:07,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:46:07,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:46:07,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-11 06:46:07,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-11 06:46:07,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:46:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:46:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:46:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:46:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-11 06:46:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-11 06:46:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-11 06:46:08,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-11 06:46:09,154 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 [2022-02-11 06:46:09,154 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:46:09,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:46:09,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1200028591, now seen corresponding path program 7 times [2022-02-11 06:46:09,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:46:09,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633357806] [2022-02-11 06:46:09,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:46:09,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:46:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:46:09,549 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-02-11 06:46:09,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:46:09,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633357806] [2022-02-11 06:46:09,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633357806] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:46:09,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917708086] [2022-02-11 06:46:09,550 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-11 06:46:09,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:46:09,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:46:09,551 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) [2022-02-11 06:46:09,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-11 06:46:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:46:09,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 34 conjunts are in the unsatisfiable core [2022-02-11 06:46:09,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:46:10,068 INFO L353 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2022-02-11 06:46:10,068 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 16 [2022-02-11 06:46:10,214 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-11 06:46:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-11 06:46:10,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:46:10,356 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:46:10,356 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-11 06:46:10,925 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-02-11 06:46:10,961 INFO L353 Elim1Store]: treesize reduction 56, result has 46.7 percent of original size [2022-02-11 06:46:10,962 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 126 treesize of output 154 [2022-02-11 06:46:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 15 proven. 153 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-11 06:46:11,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917708086] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:46:11,396 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:46:11,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19, 19] total 45 [2022-02-11 06:46:11,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423311247] [2022-02-11 06:46:11,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:46:11,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-11 06:46:11,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:46:11,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-11 06:46:11,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=1909, Unknown=0, NotChecked=0, Total=2070 [2022-02-11 06:46:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:46:11,398 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:46:11,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 3.4347826086956523) internal successors, (158), 45 states have internal predecessors, (158), 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) [2022-02-11 06:46:11,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:46:11,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:46:11,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:46:11,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-11 06:46:11,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-02-11 06:46:11,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-11 06:46:11,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:46:13,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:46:13,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:46:13,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:46:13,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:46:13,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:46:13,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:46:13,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:46:13,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-11 06:46:14,172 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 [2022-02-11 06:46:14,173 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:46:14,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:46:14,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1658791821, now seen corresponding path program 8 times [2022-02-11 06:46:14,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:46:14,173 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030944315] [2022-02-11 06:46:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:46:14,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:46:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:46:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 9 proven. 265 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-02-11 06:46:14,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:46:14,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030944315] [2022-02-11 06:46:14,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030944315] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:46:14,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855149753] [2022-02-11 06:46:14,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-11 06:46:14,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:46:14,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:46:14,659 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) [2022-02-11 06:46:14,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-11 06:46:14,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-11 06:46:14,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:46:14,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 65 conjunts are in the unsatisfiable core [2022-02-11 06:46:14,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:46:17,836 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-11 06:46:17,837 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 234 treesize of output 210 [2022-02-11 06:46:18,898 INFO L353 Elim1Store]: treesize reduction 640, result has 0.2 percent of original size [2022-02-11 06:46:18,898 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 372 treesize of output 242 [2022-02-11 06:46:18,934 INFO L353 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-02-11 06:46:18,935 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 242 treesize of output 208 [2022-02-11 06:46:19,210 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 273 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-11 06:46:19,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:46:24,073 INFO L353 Elim1Store]: treesize reduction 24, result has 60.7 percent of original size [2022-02-11 06:46:24,074 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 72 [2022-02-11 06:46:28,059 INFO L353 Elim1Store]: treesize reduction 542, result has 25.4 percent of original size [2022-02-11 06:46:28,060 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 643 treesize of output 649 [2022-02-11 06:46:28,286 INFO L353 Elim1Store]: treesize reduction 832, result has 3.8 percent of original size [2022-02-11 06:46:28,286 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 460 treesize of output 398 [2022-02-11 06:47:37,185 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 42 proven. 231 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-11 06:47:37,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855149753] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:47:37,185 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:47:37,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 28, 28] total 78 [2022-02-11 06:47:37,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912375902] [2022-02-11 06:47:37,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:47:37,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-02-11 06:47:37,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:47:37,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-02-11 06:47:37,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=5494, Unknown=0, NotChecked=0, Total=6162 [2022-02-11 06:47:37,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:47:37,188 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:47:37,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 3.1392405063291138) internal successors, (248), 78 states have internal predecessors, (248), 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) [2022-02-11 06:47:37,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:47:37,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:47:37,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:47:37,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:47:37,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:47:37,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:47:37,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:47:37,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:47:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:47:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:47:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:47:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:47:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:47:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:47:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:47:43,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:47:43,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-02-11 06:47:43,641 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 [2022-02-11 06:47:43,641 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:47:43,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:47:43,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1356591295, now seen corresponding path program 9 times [2022-02-11 06:47:43,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:47:43,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861768230] [2022-02-11 06:47:43,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:47:43,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:47:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:47:43,986 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 33 proven. 378 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-11 06:47:43,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:47:43,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861768230] [2022-02-11 06:47:43,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861768230] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:47:43,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737259649] [2022-02-11 06:47:43,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-11 06:47:43,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:47:43,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:47:43,988 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) [2022-02-11 06:47:43,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-11 06:47:44,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2022-02-11 06:47:44,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:47:44,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 43 conjunts are in the unsatisfiable core [2022-02-11 06:47:44,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:47:44,895 INFO L353 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2022-02-11 06:47:44,895 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 43 treesize of output 19 [2022-02-11 06:47:45,084 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-11 06:47:45,139 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-02-11 06:47:45,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:47:45,258 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:47:45,258 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-11 06:47:46,145 INFO L353 Elim1Store]: treesize reduction 102, result has 36.6 percent of original size [2022-02-11 06:47:46,146 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 157 treesize of output 185 [2022-02-11 06:47:46,152 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-02-11 06:47:46,922 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 64 proven. 342 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-02-11 06:47:46,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737259649] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:47:46,922 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:47:46,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 23] total 54 [2022-02-11 06:47:46,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628994020] [2022-02-11 06:47:46,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:47:46,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-02-11 06:47:46,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:47:46,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-02-11 06:47:46,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=2762, Unknown=0, NotChecked=0, Total=2970 [2022-02-11 06:47:46,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:47:46,924 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:47:46,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 3.8181818181818183) internal successors, (210), 54 states have internal predecessors, (210), 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) [2022-02-11 06:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:47:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:47:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:47:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:47:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:47:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:47:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:47:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:47:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:47:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-11 06:47:49,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-11 06:47:49,515 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 [2022-02-11 06:47:49,515 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:47:49,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:47:49,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1670832126, now seen corresponding path program 10 times [2022-02-11 06:47:49,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:47:49,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330053263] [2022-02-11 06:47:49,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:47:49,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:47:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:47:49,916 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 44 proven. 516 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-11 06:47:49,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:47:49,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330053263] [2022-02-11 06:47:49,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330053263] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:47:49,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239451961] [2022-02-11 06:47:49,917 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-11 06:47:49,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:47:49,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:47:49,923 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) [2022-02-11 06:47:49,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-11 06:47:49,978 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-11 06:47:49,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:47:49,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 54 conjunts are in the unsatisfiable core [2022-02-11 06:47:49,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:47:51,127 INFO L353 Elim1Store]: treesize reduction 180, result has 0.6 percent of original size [2022-02-11 06:47:51,127 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 50 treesize of output 22 [2022-02-11 06:47:51,399 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-11 06:47:51,463 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-02-11 06:47:51,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:47:51,594 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:47:51,594 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-11 06:47:52,862 INFO L353 Elim1Store]: treesize reduction 160, result has 30.1 percent of original size [2022-02-11 06:47:52,863 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 174 treesize of output 206 [2022-02-11 06:47:52,868 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-02-11 06:47:54,081 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 75 proven. 480 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-02-11 06:47:54,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239451961] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:47:54,082 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:47:54,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 27, 27] total 67 [2022-02-11 06:47:54,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535004922] [2022-02-11 06:47:54,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:47:54,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-11 06:47:54,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:47:54,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-11 06:47:54,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=4285, Unknown=0, NotChecked=0, Total=4556 [2022-02-11 06:47:54,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:47:54,084 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:47:54,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.7058823529411766) internal successors, (252), 67 states have internal predecessors, (252), 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) [2022-02-11 06:47:54,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:47:54,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:47:54,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:47:54,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:47:54,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:47:54,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:47:54,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:47:54,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:47:54,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-11 06:47:54,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:47:57,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:47:57,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:47:57,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:47:57,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:47:57,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:47:57,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:47:57,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:47:57,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:47:57,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-11 06:47:57,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-11 06:47:57,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-11 06:47:57,951 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 [2022-02-11 06:47:57,953 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:47:57,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:47:57,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1170250337, now seen corresponding path program 11 times [2022-02-11 06:47:57,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:47:57,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092950956] [2022-02-11 06:47:57,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:47:57,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:47:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:47:58,709 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 740 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-02-11 06:47:58,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:47:58,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092950956] [2022-02-11 06:47:58,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092950956] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:47:58,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478333483] [2022-02-11 06:47:58,709 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-11 06:47:58,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:47:58,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:47:58,711 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) [2022-02-11 06:47:58,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-11 06:47:58,794 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2022-02-11 06:47:58,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:47:58,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 53 conjunts are in the unsatisfiable core [2022-02-11 06:47:58,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:48:00,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-11 06:48:00,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:00,865 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 25 [2022-02-11 06:48:01,032 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-11 06:48:01,046 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 732 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-02-11 06:48:01,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:48:01,216 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:48:01,216 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-11 06:48:02,534 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-02-11 06:48:02,622 INFO L353 Elim1Store]: treesize reduction 230, result has 25.6 percent of original size [2022-02-11 06:48:02,623 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 217 treesize of output 241 [2022-02-11 06:48:04,275 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 84 proven. 648 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-02-11 06:48:04,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478333483] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:48:04,275 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:48:04,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 31, 31] total 61 [2022-02-11 06:48:04,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725785415] [2022-02-11 06:48:04,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:48:04,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-02-11 06:48:04,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:48:04,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-02-11 06:48:04,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=3543, Unknown=0, NotChecked=0, Total=3782 [2022-02-11 06:48:04,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:48:04,277 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:48:04,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 3.2096774193548385) internal successors, (199), 61 states have internal predecessors, (199), 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) [2022-02-11 06:48:04,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:48:04,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:48:04,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:48:04,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:04,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:48:04,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:48:04,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:48:04,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:04,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-11 06:48:04,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-02-11 06:48:04,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:48:05,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:48:05,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:48:05,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:48:05,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:48:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:48:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:48:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-11 06:48:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-11 06:48:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-11 06:48:05,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-11 06:48:05,627 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 [2022-02-11 06:48:05,627 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:48:05,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:48:05,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1440233533, now seen corresponding path program 12 times [2022-02-11 06:48:05,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:48:05,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299548009] [2022-02-11 06:48:05,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:48:05,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:48:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:48:06,527 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 799 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-02-11 06:48:06,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:48:06,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299548009] [2022-02-11 06:48:06,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299548009] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:48:06,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033772333] [2022-02-11 06:48:06,527 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-11 06:48:06,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:48:06,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:48:06,528 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) [2022-02-11 06:48:06,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-11 06:48:06,622 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2022-02-11 06:48:06,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:48:06,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 62 conjunts are in the unsatisfiable core [2022-02-11 06:48:06,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:48:08,801 INFO L353 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2022-02-11 06:48:08,801 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 60 treesize of output 28 [2022-02-11 06:48:08,967 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-11 06:48:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 793 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-02-11 06:48:08,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:48:09,130 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:48:09,131 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-11 06:48:10,981 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-02-11 06:48:11,084 INFO L353 Elim1Store]: treesize reduction 312, result has 22.2 percent of original size [2022-02-11 06:48:11,085 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 338 treesize of output 322 [2022-02-11 06:48:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 91 proven. 702 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-02-11 06:48:13,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033772333] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:48:13,942 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:48:13,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 35, 35] total 70 [2022-02-11 06:48:13,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229060963] [2022-02-11 06:48:13,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:48:13,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-02-11 06:48:13,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:48:13,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-02-11 06:48:13,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=4682, Unknown=0, NotChecked=0, Total=4970 [2022-02-11 06:48:13,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:48:13,944 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:48:13,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 3.112676056338028) internal successors, (221), 70 states have internal predecessors, (221), 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) [2022-02-11 06:48:13,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:48:13,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:48:13,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:48:13,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:13,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:48:13,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:48:13,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:48:13,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:13,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-11 06:48:13,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-02-11 06:48:13,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-02-11 06:48:13,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:48:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:48:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:48:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:48:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:48:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:48:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:48:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-11 06:48:17,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-11 06:48:17,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-11 06:48:17,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-11 06:48:17,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-11 06:48:17,396 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 [2022-02-11 06:48:17,397 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:48:17,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:48:17,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1601152929, now seen corresponding path program 13 times [2022-02-11 06:48:17,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:48:17,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34212398] [2022-02-11 06:48:17,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:48:17,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:48:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:48:18,468 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 0 proven. 856 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-11 06:48:18,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:48:18,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34212398] [2022-02-11 06:48:18,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34212398] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:48:18,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217390880] [2022-02-11 06:48:18,469 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-11 06:48:18,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:48:18,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:48:18,470 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 06:48:18,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-11 06:48:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:48:18,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 67 conjunts are in the unsatisfiable core [2022-02-11 06:48:18,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:48:21,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-11 06:48:21,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:21,637 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 31 [2022-02-11 06:48:21,810 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-11 06:48:21,824 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-02-11 06:48:21,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:48:21,979 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:48:21,979 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-11 06:48:24,075 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-02-11 06:48:24,226 INFO L353 Elim1Store]: treesize reduction 406, result has 19.6 percent of original size [2022-02-11 06:48:24,227 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 249 treesize of output 283 [2022-02-11 06:48:26,604 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 96 proven. 756 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-02-11 06:48:26,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217390880] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:48:26,604 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:48:26,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 39, 39] total 77 [2022-02-11 06:48:26,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389742239] [2022-02-11 06:48:26,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:48:26,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-11 06:48:26,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:48:26,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-11 06:48:26,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=5674, Unknown=0, NotChecked=0, Total=6006 [2022-02-11 06:48:26,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:48:26,606 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:48:26,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 3.08974358974359) internal successors, (241), 77 states have internal predecessors, (241), 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) [2022-02-11 06:48:26,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:48:26,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:48:26,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:48:26,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:26,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:48:26,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:48:26,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:48:26,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:26,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-11 06:48:26,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-02-11 06:48:26,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-02-11 06:48:26,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-02-11 06:48:26,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:48:28,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:48:28,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:48:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:48:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:48:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:48:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:48:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-11 06:48:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-11 06:48:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-11 06:48:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-11 06:48:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-11 06:48:28,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-02-11 06:48:28,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:48:28,377 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:48:28,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:48:28,377 INFO L85 PathProgramCache]: Analyzing trace with hash 502332797, now seen corresponding path program 14 times [2022-02-11 06:48:28,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:48:28,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894203669] [2022-02-11 06:48:28,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:48:28,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:48:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:48:29,564 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 1 proven. 912 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-02-11 06:48:29,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:48:29,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894203669] [2022-02-11 06:48:29,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894203669] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:48:29,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560143385] [2022-02-11 06:48:29,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-11 06:48:29,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:48:29,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:48:29,565 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 06:48:29,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-11 06:48:29,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-11 06:48:29,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:48:29,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 78 conjunts are in the unsatisfiable core [2022-02-11 06:48:29,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:48:32,755 INFO L353 Elim1Store]: treesize reduction 540, result has 0.2 percent of original size [2022-02-11 06:48:32,755 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 78 treesize of output 34 [2022-02-11 06:48:32,918 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-11 06:48:32,941 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 0 proven. 909 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-11 06:48:32,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:48:33,095 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:48:33,095 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-11 06:48:36,788 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-02-11 06:48:36,957 INFO L353 Elim1Store]: treesize reduction 512, result has 17.6 percent of original size [2022-02-11 06:48:36,958 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 347 treesize of output 347 [2022-02-11 06:48:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 99 proven. 810 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-11 06:48:43,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560143385] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:48:43,708 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:48:43,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 43, 43] total 106 [2022-02-11 06:48:43,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452353108] [2022-02-11 06:48:43,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:48:43,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-02-11 06:48:43,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:48:43,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-02-11 06:48:43,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=487, Invalid=10855, Unknown=0, NotChecked=0, Total=11342 [2022-02-11 06:48:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:48:43,711 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:48:43,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 2.878504672897196) internal successors, (308), 106 states have internal predecessors, (308), 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) [2022-02-11 06:48:43,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:48:43,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:48:43,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:48:43,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:48:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:48:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:48:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-11 06:48:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-02-11 06:48:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-02-11 06:48:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-02-11 06:48:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-02-11 06:48:43,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:48:49,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:48:49,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:48:49,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:48:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:48:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:48:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:48:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:48:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-11 06:48:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-11 06:48:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-11 06:48:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-11 06:48:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-11 06:48:49,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-11 06:48:49,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-02-11 06:48:49,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:48:49,487 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:48:49,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:48:49,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1550093375, now seen corresponding path program 15 times [2022-02-11 06:48:49,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:48:49,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759937008] [2022-02-11 06:48:49,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:48:49,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:48:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:48:50,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 0 proven. 998 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-11 06:48:50,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:48:50,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759937008] [2022-02-11 06:48:50,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759937008] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:48:50,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854273574] [2022-02-11 06:48:50,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-11 06:48:50,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:48:50,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:48:50,815 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 06:48:50,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-11 06:48:50,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-02-11 06:48:50,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:48:50,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 88 conjunts are in the unsatisfiable core [2022-02-11 06:48:50,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:48:55,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-11 06:48:55,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:48:55,567 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 55 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 37 [2022-02-11 06:48:55,861 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-02-11 06:48:55,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 0 proven. 998 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-11 06:48:55,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:48:56,153 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:48:56,153 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-11 06:49:01,493 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-02-11 06:49:01,705 INFO L353 Elim1Store]: treesize reduction 630, result has 15.9 percent of original size [2022-02-11 06:49:01,706 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 545 treesize of output 467 [2022-02-11 06:49:10,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 120 proven. 878 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-11 06:49:10,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854273574] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:49:10,235 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:49:10,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 118 [2022-02-11 06:49:10,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691828185] [2022-02-11 06:49:10,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:49:10,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-02-11 06:49:10,236 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:49:10,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-02-11 06:49:10,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=548, Invalid=13494, Unknown=0, NotChecked=0, Total=14042 [2022-02-11 06:49:10,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:49:10,239 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:49:10,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 119 states have (on average 2.7983193277310923) internal successors, (333), 118 states have internal predecessors, (333), 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) [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-11 06:49:10,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:49:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-11 06:49:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-11 06:49:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-11 06:49:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:49:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-11 06:49:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-11 06:49:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-11 06:49:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-11 06:49:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-11 06:49:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-11 06:49:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-11 06:49:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-11 06:49:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-11 06:49:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-11 06:49:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-11 06:49:13,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-02-11 06:49:13,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-02-11 06:49:13,338 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:49:13,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:49:13,338 INFO L85 PathProgramCache]: Analyzing trace with hash -788714272, now seen corresponding path program 16 times [2022-02-11 06:49:13,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:49:13,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251358644] [2022-02-11 06:49:13,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:49:13,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:49:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:49:14,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 0 proven. 1121 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-02-11 06:49:14,846 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:49:14,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251358644] [2022-02-11 06:49:14,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251358644] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:49:14,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101690771] [2022-02-11 06:49:14,846 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-11 06:49:14,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:49:14,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:49:14,848 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 06:49:14,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-02-11 06:49:14,933 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-11 06:49:14,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:49:14,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 103 conjunts are in the unsatisfiable core [2022-02-11 06:49:14,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:49:24,326 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-11 06:49:24,327 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 324 treesize of output 300 [2022-02-11 06:49:26,656 INFO L353 Elim1Store]: treesize reduction 28, result has 58.2 percent of original size [2022-02-11 06:49:26,656 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 530 treesize of output 526 [2022-02-11 06:49:26,667 INFO L353 Elim1Store]: treesize reduction 1802, result has 0.1 percent of original size [2022-02-11 06:49:26,667 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 488 treesize of output 274 [2022-02-11 06:49:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 0 proven. 910 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-02-11 06:49:27,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:49:39,529 INFO L353 Elim1Store]: treesize reduction 24, result has 60.7 percent of original size [2022-02-11 06:49:39,530 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 69 [2022-02-11 06:49:57,088 INFO L353 Elim1Store]: treesize reduction 1808, result has 16.6 percent of original size [2022-02-11 06:49:57,088 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 1368 treesize of output 1524 [2022-02-11 06:49:58,318 INFO L353 Elim1Store]: treesize reduction 1620, result has 16.7 percent of original size [2022-02-11 06:49:58,319 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 0 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 171 case distinctions, treesize of input 1173 treesize of output 969 Received shutdown request... [2022-02-11 06:59:26,266 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-11 06:59:26,271 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 [2022-02-11 06:59:26,276 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-11 06:59:26,286 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 [2022-02-11 06:59:26,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-02-11 06:59:26,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-11 06:59:26,477 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 183 with TraceHistMax 18,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-51-8-5-17-13-19-6-16-4-16-4-18-4-12-5-19-5-10-4-15-4-12-4-11-4-11-4-9-4-14-4-10-4-3-5-3-5-3-1 context. [2022-02-11 06:59:26,478 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-11 06:59:26,479 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-11 06:59:26,479 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-11 06:59:26,482 INFO L733 BasicCegarLoop]: Path program histogram: [16] [2022-02-11 06:59:26,484 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-11 06:59:26,484 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-11 06:59:26,485 INFO L202 PluginConnector]: Adding new model ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.02 06:59:26 BasicIcfg [2022-02-11 06:59:26,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-11 06:59:26,486 INFO L158 Benchmark]: Toolchain (without parser) took 819039.44ms. Allocated memory was 184.5MB in the beginning and 733.0MB in the end (delta: 548.4MB). Free memory was 144.7MB in the beginning and 459.9MB in the end (delta: -315.2MB). Peak memory consumption was 486.9MB. Max. memory is 8.0GB. [2022-02-11 06:59:26,486 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-11 06:59:26,487 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.16ms. Allocated memory is still 184.5MB. Free memory was 144.6MB in the beginning and 143.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-11 06:59:26,487 INFO L158 Benchmark]: Boogie Preprocessor took 22.33ms. Allocated memory is still 184.5MB. Free memory was 143.1MB in the beginning and 142.1MB in the end (delta: 991.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-11 06:59:26,487 INFO L158 Benchmark]: RCFGBuilder took 290.64ms. Allocated memory is still 184.5MB. Free memory was 142.1MB in the beginning and 131.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-11 06:59:26,487 INFO L158 Benchmark]: TraceAbstraction took 818703.13ms. Allocated memory was 184.5MB in the beginning and 733.0MB in the end (delta: 548.4MB). Free memory was 130.6MB in the beginning and 459.9MB in the end (delta: -329.3MB). Peak memory consumption was 471.2MB. Max. memory is 8.0GB. [2022-02-11 06:59:26,488 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.16ms. Allocated memory is still 184.5MB. Free memory was 144.6MB in the beginning and 143.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.33ms. Allocated memory is still 184.5MB. Free memory was 143.1MB in the beginning and 142.1MB in the end (delta: 991.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 290.64ms. Allocated memory is still 184.5MB. Free memory was 142.1MB in the beginning and 131.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 818703.13ms. Allocated memory was 184.5MB in the beginning and 733.0MB in the end (delta: 548.4MB). Free memory was 130.6MB in the beginning and 459.9MB in the end (delta: -329.3MB). Peak memory consumption was 471.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7646, positive: 6935, positive conditional: 6321, positive unconditional: 614, negative: 711, negative conditional: 707, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7077, positive: 6935, positive conditional: 6321, positive unconditional: 614, negative: 142, negative conditional: 138, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7077, positive: 6935, positive conditional: 6321, positive unconditional: 614, negative: 142, negative conditional: 138, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8081, positive: 6935, positive conditional: 6108, positive unconditional: 827, negative: 1146, negative conditional: 1004, negative unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8081, positive: 6935, positive conditional: 4218, positive unconditional: 2717, negative: 1146, negative conditional: 691, negative unconditional: 455, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8081, positive: 6935, positive conditional: 4218, positive unconditional: 2717, negative: 1146, negative conditional: 691, negative unconditional: 455, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 574, positive: 538, positive conditional: 0, positive unconditional: 538, negative: 36, negative conditional: 32, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 574, positive: 532, positive conditional: 0, positive unconditional: 532, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 36, negative conditional: 32, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 171, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 98, negative conditional: 85, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8081, positive: 6397, positive conditional: 4218, positive unconditional: 2179, negative: 1110, negative conditional: 659, negative unconditional: 451, unknown: 574, unknown conditional: 32, unknown unconditional: 542] , Statistics on independence cache: Total cache size (in pairs): 574, Positive cache size: 538, Positive conditional cache size: 0, Positive unconditional cache size: 538, Negative cache size: 36, Negative conditional cache size: 32, Negative unconditional cache size: 4, Eliminated conditions: 2203, Maximal queried relation: 14, Independence queries for same thread: 569 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 43, Number of trivial persistent sets: 9, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 618, positive: 614, positive conditional: 0, positive unconditional: 614, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7646, positive: 6935, positive conditional: 6321, positive unconditional: 614, negative: 711, negative conditional: 707, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7077, positive: 6935, positive conditional: 6321, positive unconditional: 614, negative: 142, negative conditional: 138, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7077, positive: 6935, positive conditional: 6321, positive unconditional: 614, negative: 142, negative conditional: 138, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8081, positive: 6935, positive conditional: 6108, positive unconditional: 827, negative: 1146, negative conditional: 1004, negative unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8081, positive: 6935, positive conditional: 4218, positive unconditional: 2717, negative: 1146, negative conditional: 691, negative unconditional: 455, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8081, positive: 6935, positive conditional: 4218, positive unconditional: 2717, negative: 1146, negative conditional: 691, negative unconditional: 455, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 574, positive: 538, positive conditional: 0, positive unconditional: 538, negative: 36, negative conditional: 32, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 574, positive: 532, positive conditional: 0, positive unconditional: 532, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 36, negative conditional: 32, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 171, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 98, negative conditional: 85, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8081, positive: 6397, positive conditional: 4218, positive unconditional: 2179, negative: 1110, negative conditional: 659, negative unconditional: 451, unknown: 574, unknown conditional: 32, unknown unconditional: 542] , Statistics on independence cache: Total cache size (in pairs): 574, Positive cache size: 538, Positive conditional cache size: 0, Positive unconditional cache size: 538, Negative cache size: 36, Negative conditional cache size: 32, Negative unconditional cache size: 4, Eliminated conditions: 2203, Maximal queried relation: 14, Independence queries for same thread: 569 - 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: 102]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 183 with TraceHistMax 18,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-51-8-5-17-13-19-6-16-4-16-4-18-4-12-5-19-5-10-4-15-4-12-4-11-4-11-4-9-4-14-4-10-4-3-5-3-5-3-1 context. - TimeoutResultAtElement [Line: 95]: 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 183 with TraceHistMax 18,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-51-8-5-17-13-19-6-16-4-16-4-18-4-12-5-19-5-10-4-15-4-12-4-11-4-11-4-9-4-14-4-10-4-3-5-3-5-3-1 context. - TimeoutResultAtElement [Line: 95]: 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 183 with TraceHistMax 18,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-51-8-5-17-13-19-6-16-4-16-4-18-4-12-5-19-5-10-4-15-4-12-4-11-4-11-4-9-4-14-4-10-4-3-5-3-5-3-1 context. - TimeoutResultAtElement [Line: 96]: 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 183 with TraceHistMax 18,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-51-8-5-17-13-19-6-16-4-16-4-18-4-12-5-19-5-10-4-15-4-12-4-11-4-11-4-9-4-14-4-10-4-3-5-3-5-3-1 context. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 53 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 818.6s, OverallIterations: 16, TraceHistogramMax: 0, PathProgramHistogramMax: 16, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 33.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 630, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 166.4s InterpolantComputationTime, 3098 NumberOfCodeBlocks, 3096 NumberOfCodeBlocksAsserted, 98 NumberOfCheckSat, 4602 ConstructedInterpolants, 140 QuantifiedInterpolants, 112480 SizeOfPredicates, 208 NumberOfNonLiveVariables, 3692 ConjunctsInSsa, 656 ConjunctsInUnsatCore, 45 InterpolantComputations, 0 PerfectInterpolantSequences, 2085/19215 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