/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 11:37:05,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 11:37:05,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 11:37:05,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 11:37:05,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 11:37:05,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 11:37:05,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 11:37:05,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 11:37:05,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 11:37:06,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 11:37:06,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 11:37:06,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 11:37:06,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 11:37:06,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 11:37:06,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 11:37:06,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 11:37:06,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 11:37:06,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 11:37:06,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 11:37:06,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 11:37:06,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 11:37:06,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 11:37:06,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 11:37:06,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 11:37:06,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-04 11:37:06,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-04 11:37:06,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-04 11:37:06,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-04 11:37:06,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-04 11:37:06,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-04 11:37:06,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 11:37:06,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 11:37:06,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 11:37:06,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 11:37:06,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 11:37:06,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 11:37:06,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 11:37:06,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 11:37:06,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 11:37:06,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 11:37:06,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 11:37:06,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-04 11:37:06,057 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 11:37:06,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 11:37:06,058 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 11:37:06,058 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 11:37:06,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 11:37:06,058 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 11:37:06,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 11:37:06,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 11:37:06,059 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 11:37:06,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 11:37:06,059 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 11:37:06,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 11:37:06,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 11:37:06,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 11:37:06,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 11:37:06,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 11:37:06,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 11:37:06,059 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 11:37:06,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 11:37:06,060 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 11:37:06,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 11:37:06,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 11:37:06,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 11:37:06,060 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 11:37:06,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 11:37:06,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:37:06,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 11:37:06,060 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 11:37:06,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 11:37:06,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 11:37:06,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 11:37:06,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 11:37:06,061 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 11:37:06,061 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 11:37:06,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 11:37:06,061 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 11:37:06,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 11:37:06,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 11:37:06,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 11:37:06,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 11:37:06,289 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 11:37:06,290 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 11:37:06,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl [2022-03-04 11:37:06,291 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl' [2022-03-04 11:37:06,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 11:37:06,309 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 11:37:06,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 11:37:06,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 11:37:06,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 11:37:06,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:37:06" (1/1) ... [2022-03-04 11:37:06,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:37:06" (1/1) ... [2022-03-04 11:37:06,327 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 11:37:06,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 11:37:06,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 11:37:06,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 11:37:06,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 11:37:06,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:37:06" (1/1) ... [2022-03-04 11:37:06,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:37:06" (1/1) ... [2022-03-04 11:37:06,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:37:06" (1/1) ... [2022-03-04 11:37:06,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:37:06" (1/1) ... [2022-03-04 11:37:06,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:37:06" (1/1) ... [2022-03-04 11:37:06,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:37:06" (1/1) ... [2022-03-04 11:37:06,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:37:06" (1/1) ... [2022-03-04 11:37:06,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 11:37:06,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 11:37:06,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 11:37:06,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 11:37:06,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:37:06" (1/1) ... [2022-03-04 11:37:06,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:37:06,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:06,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 11:37:06,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 11:37:06,391 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 11:37:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 11:37:06,391 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 11:37:06,391 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 11:37:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 11:37:06,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 11:37:06,392 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 11:37:06,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 11:37:06,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 11:37:06,393 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 11:37:06,426 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 11:37:06,427 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 11:37:06,492 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 11:37:06,503 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 11:37:06,503 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 11:37:06,505 INFO L202 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:37:06 BoogieIcfgContainer [2022-03-04 11:37:06,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 11:37:06,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 11:37:06,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 11:37:06,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 11:37:06,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:37:06" (1/2) ... [2022-03-04 11:37:06,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff4119e and model type two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:37:06, skipping insertion in model container [2022-03-04 11:37:06,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:37:06" (2/2) ... [2022-03-04 11:37:06,511 INFO L111 eAbstractionObserver]: Analyzing ICFG two-queue.wvr.bpl [2022-03-04 11:37:06,514 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 11:37:06,514 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 11:37:06,514 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 11:37:06,514 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 11:37:06,550 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-04 11:37:06,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 11:37:06,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:06,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 11:37:06,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 11:37:06,640 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 11:37:06,648 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-04 11:37:06,648 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 11:37:07,030 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 537 states. [2022-03-04 11:37:07,032 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:37:07,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:07,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1292775148, now seen corresponding path program 1 times [2022-03-04 11:37:07,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:07,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219775645] [2022-03-04 11:37:07,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:07,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:07,281 INFO L134 CoverageAnalysis]: Checked inductivity of 4263 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 4133 trivial. 0 not checked. [2022-03-04 11:37:07,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:07,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219775645] [2022-03-04 11:37:07,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219775645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 11:37:07,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 11:37:07,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-04 11:37:07,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996869281] [2022-03-04 11:37:07,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 11:37:07,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 11:37:07,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:07,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 11:37:07,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 11:37:07,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:07,340 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:07,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:07,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:07,510 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 394 transitions and produced 352 states. [2022-03-04 11:37:07,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:07,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 11:37:07,511 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:37:07,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:07,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1934739403, now seen corresponding path program 2 times [2022-03-04 11:37:07,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:07,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101134647] [2022-03-04 11:37:07,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:07,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 210 proven. 2 refuted. 0 times theorem prover too weak. 1594 trivial. 0 not checked. [2022-03-04 11:37:07,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:07,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101134647] [2022-03-04 11:37:07,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101134647] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:37:07,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012798793] [2022-03-04 11:37:07,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 11:37:07,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:07,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:07,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:37:07,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 11:37:07,882 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 11:37:07,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:37:07,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-04 11:37:07,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:37:08,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2022-03-04 11:37:08,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-04 11:37:08,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012798793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 11:37:08,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-04 11:37:08,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2022-03-04 11:37:08,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281012043] [2022-03-04 11:37:08,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 11:37:08,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-04 11:37:08,152 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:08,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-04 11:37:08,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-04 11:37:08,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:08,152 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:08,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:08,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:08,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:08,317 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 281 transitions and produced 236 states. [2022-03-04 11:37:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:08,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 11:37:08,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-03-04 11:37:08,535 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:37:08,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:08,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1970604121, now seen corresponding path program 3 times [2022-03-04 11:37:08,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:08,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258483459] [2022-03-04 11:37:08,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:08,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 274 proven. 31 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-04 11:37:08,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:08,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258483459] [2022-03-04 11:37:08,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258483459] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:37:08,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160770163] [2022-03-04 11:37:08,717 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 11:37:08,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:08,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:08,718 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:37:08,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 11:37:08,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-04 11:37:08,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:37:08,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-04 11:37:08,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:37:09,021 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 275 proven. 24 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2022-03-04 11:37:09,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:37:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 275 proven. 24 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2022-03-04 11:37:09,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160770163] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:37:09,236 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:37:09,236 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 11 [2022-03-04 11:37:09,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54111968] [2022-03-04 11:37:09,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:37:09,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-04 11:37:09,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:09,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-04 11:37:09,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2022-03-04 11:37:09,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:09,238 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:09,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:09,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:09,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:09,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:09,362 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 239 transitions and produced 198 states. [2022-03-04 11:37:09,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:09,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:09,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:09,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 11:37:09,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:09,577 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:37:09,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:09,577 INFO L85 PathProgramCache]: Analyzing trace with hash -27305337, now seen corresponding path program 4 times [2022-03-04 11:37:09,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:09,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403708810] [2022-03-04 11:37:09,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:09,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:10,108 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 6 proven. 91 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-03-04 11:37:10,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:10,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403708810] [2022-03-04 11:37:10,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403708810] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:37:10,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412670820] [2022-03-04 11:37:10,109 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 11:37:10,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:10,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:10,111 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:37:10,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 11:37:10,152 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 11:37:10,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:37:10,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 63 conjunts are in the unsatisfiable core [2022-03-04 11:37:10,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:37:10,608 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 13 treesize of output 9 [2022-03-04 11:37:10,650 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 13 treesize of output 9 [2022-03-04 11:37:10,727 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 6 proven. 91 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-03-04 11:37:10,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:37:10,973 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:10,973 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 36 treesize of output 38 [2022-03-04 11:37:11,052 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:11,052 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 43 treesize of output 43 [2022-03-04 11:37:11,560 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-03-04 11:37:11,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412670820] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:37:11,560 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:37:11,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 29 [2022-03-04 11:37:11,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344559296] [2022-03-04 11:37:11,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:37:11,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-04 11:37:11,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:11,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-04 11:37:11,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=769, Unknown=0, NotChecked=0, Total=870 [2022-03-04 11:37:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:11,563 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:11,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 29 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:11,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:11,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:11,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:11,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:12,332 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 286 transitions and produced 235 states. [2022-03-04 11:37:12,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:12,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:12,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:12,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:37:12,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 11:37:12,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:12,549 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:37:12,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:12,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1507467209, now seen corresponding path program 5 times [2022-03-04 11:37:12,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:12,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734541367] [2022-03-04 11:37:12,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:12,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:13,173 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 7 proven. 210 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-04 11:37:13,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:13,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734541367] [2022-03-04 11:37:13,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734541367] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:37:13,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403490198] [2022-03-04 11:37:13,174 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 11:37:13,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:13,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:13,176 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:37:13,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 11:37:13,248 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2022-03-04 11:37:13,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:37:13,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 91 conjunts are in the unsatisfiable core [2022-03-04 11:37:13,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:37:13,963 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 13 treesize of output 9 [2022-03-04 11:37:14,003 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 13 treesize of output 9 [2022-03-04 11:37:14,066 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 171 proven. 166 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-03-04 11:37:14,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:37:14,318 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:14,318 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 36 treesize of output 38 [2022-03-04 11:37:14,403 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:14,404 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 43 treesize of output 43 [2022-03-04 11:37:15,378 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 163 proven. 174 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-03-04 11:37:15,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403490198] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:37:15,378 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:37:15,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21, 21] total 38 [2022-03-04 11:37:15,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035031490] [2022-03-04 11:37:15,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:37:15,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-03-04 11:37:15,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:15,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-03-04 11:37:15,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1301, Unknown=0, NotChecked=0, Total=1482 [2022-03-04 11:37:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:15,380 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:15,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.128205128205128) internal successors, (83), 38 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:15,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:15,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:15,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:15,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:37:15,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:16,643 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 939 transitions and produced 803 states. [2022-03-04 11:37:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:37:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-04 11:37:16,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 11:37:16,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:16,855 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:37:16,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:16,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1619268549, now seen corresponding path program 6 times [2022-03-04 11:37:16,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:16,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252452393] [2022-03-04 11:37:16,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:16,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:17,731 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 9 proven. 396 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-03-04 11:37:17,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:17,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252452393] [2022-03-04 11:37:17,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252452393] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:37:17,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418849568] [2022-03-04 11:37:17,733 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 11:37:17,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:17,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:17,743 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:37:17,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 11:37:17,845 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2022-03-04 11:37:17,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:37:17,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 100 conjunts are in the unsatisfiable core [2022-03-04 11:37:17,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:37:18,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 11:37:18,636 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-04 11:37:18,657 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 13 treesize of output 9 [2022-03-04 11:37:18,733 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 21 proven. 384 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-03-04 11:37:18,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:37:18,991 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:18,992 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 36 treesize of output 38 [2022-03-04 11:37:19,105 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:19,105 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 36 treesize of output 38 [2022-03-04 11:37:20,807 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 12 proven. 393 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-03-04 11:37:20,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418849568] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:37:20,808 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:37:20,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 41 [2022-03-04 11:37:20,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681509870] [2022-03-04 11:37:20,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:37:20,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-03-04 11:37:20,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:20,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-03-04 11:37:20,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1494, Unknown=0, NotChecked=0, Total=1722 [2022-03-04 11:37:20,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:20,810 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:20,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.4285714285714284) internal successors, (102), 41 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:20,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:20,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:20,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:20,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:37:20,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-04 11:37:20,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:22,734 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1970 transitions and produced 1645 states. [2022-03-04 11:37:22,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:22,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:22,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:22,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:37:22,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-04 11:37:22,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-04 11:37:22,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 11:37:22,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:22,935 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:37:22,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:22,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1156307109, now seen corresponding path program 7 times [2022-03-04 11:37:22,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:22,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517771881] [2022-03-04 11:37:22,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:22,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:23,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 10 proven. 792 refuted. 0 times theorem prover too weak. 1090 trivial. 0 not checked. [2022-03-04 11:37:23,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:23,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517771881] [2022-03-04 11:37:23,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517771881] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:37:23,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718762191] [2022-03-04 11:37:23,851 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 11:37:23,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:23,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:23,853 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:37:23,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 11:37:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:23,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 183 conjunts are in the unsatisfiable core [2022-03-04 11:37:23,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:37:25,105 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 13 treesize of output 9 [2022-03-04 11:37:25,122 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 13 treesize of output 9 [2022-03-04 11:37:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 10 proven. 792 refuted. 0 times theorem prover too weak. 1090 trivial. 0 not checked. [2022-03-04 11:37:25,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:37:25,407 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:25,408 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 36 treesize of output 38 [2022-03-04 11:37:25,470 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:25,470 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 43 treesize of output 43 [2022-03-04 11:37:26,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 802 refuted. 0 times theorem prover too weak. 1090 trivial. 0 not checked. [2022-03-04 11:37:26,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718762191] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:37:26,647 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:37:26,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 27 [2022-03-04 11:37:26,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7585953] [2022-03-04 11:37:26,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:37:26,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-04 11:37:26,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:26,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-04 11:37:26,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=648, Unknown=0, NotChecked=0, Total=756 [2022-03-04 11:37:26,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:26,649 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:26,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.8571428571428572) internal successors, (52), 27 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:26,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:26,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:26,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:26,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:37:26,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-04 11:37:26,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-03-04 11:37:26,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:29,066 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2684 transitions and produced 2218 states. [2022-03-04 11:37:29,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:29,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:29,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:29,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:37:29,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-04 11:37:29,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 11:37:29,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-04 11:37:29,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 11:37:29,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:29,286 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:37:29,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:29,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1868623233, now seen corresponding path program 8 times [2022-03-04 11:37:29,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:29,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439000945] [2022-03-04 11:37:29,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:29,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:30,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3080 backedges. 50 proven. 1319 refuted. 0 times theorem prover too weak. 1711 trivial. 0 not checked. [2022-03-04 11:37:30,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:30,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439000945] [2022-03-04 11:37:30,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439000945] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:37:30,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341667143] [2022-03-04 11:37:30,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 11:37:30,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:30,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:30,480 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) [2022-03-04 11:37:30,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 11:37:30,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 11:37:30,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:37:30,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 231 conjunts are in the unsatisfiable core [2022-03-04 11:37:30,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:37:32,099 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 13 treesize of output 9 [2022-03-04 11:37:32,108 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 13 treesize of output 9 [2022-03-04 11:37:32,176 INFO L134 CoverageAnalysis]: Checked inductivity of 3080 backedges. 50 proven. 1319 refuted. 0 times theorem prover too weak. 1711 trivial. 0 not checked. [2022-03-04 11:37:32,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:37:32,390 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:32,391 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 36 treesize of output 38 [2022-03-04 11:37:32,472 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:32,472 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 43 treesize of output 43 [2022-03-04 11:37:33,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3080 backedges. 0 proven. 1369 refuted. 0 times theorem prover too weak. 1711 trivial. 0 not checked. [2022-03-04 11:37:33,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341667143] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:37:33,974 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:37:33,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 29 [2022-03-04 11:37:33,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315625083] [2022-03-04 11:37:33,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:37:33,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-04 11:37:33,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:33,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-04 11:37:33,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2022-03-04 11:37:33,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:33,977 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:33,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.9) internal successors, (57), 29 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:33,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:33,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:33,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:33,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:37:33,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-04 11:37:33,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-04 11:37:33,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-04 11:37:33,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:36,143 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2718 transitions and produced 2294 states. [2022-03-04 11:37:36,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:36,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:36,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:36,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:37:36,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-04 11:37:36,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 11:37:36,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 11:37:36,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 11:37:36,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-04 11:37:36,355 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,SelfDestructingSolverStorable7 [2022-03-04 11:37:36,355 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:37:36,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:36,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2055689329, now seen corresponding path program 9 times [2022-03-04 11:37:36,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:36,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033166163] [2022-03-04 11:37:36,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:36,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:37,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 16 proven. 1535 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2022-03-04 11:37:37,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:37,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033166163] [2022-03-04 11:37:37,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033166163] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:37:37,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529066310] [2022-03-04 11:37:37,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 11:37:37,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:37,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:37,494 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) [2022-03-04 11:37:37,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-04 11:37:37,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2022-03-04 11:37:37,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:37:37,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 239 conjunts are in the unsatisfiable core [2022-03-04 11:37:37,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:37:39,232 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 13 treesize of output 9 [2022-03-04 11:37:39,245 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 13 treesize of output 9 [2022-03-04 11:37:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 16 proven. 1535 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2022-03-04 11:37:39,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:37:39,511 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:39,511 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 36 treesize of output 38 [2022-03-04 11:37:39,606 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:39,607 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 24 treesize of output 26 [2022-03-04 11:37:41,156 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 0 proven. 1551 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2022-03-04 11:37:41,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529066310] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:37:41,156 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:37:41,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 27 [2022-03-04 11:37:41,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749295642] [2022-03-04 11:37:41,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:37:41,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-04 11:37:41,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:41,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-04 11:37:41,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2022-03-04 11:37:41,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:41,157 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:41,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.8571428571428572) internal successors, (52), 27 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:41,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:41,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:41,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:41,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:37:41,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-04 11:37:41,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-04 11:37:41,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-04 11:37:41,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 11:37:41,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:43,953 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4509 transitions and produced 3681 states. [2022-03-04 11:37:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:37:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-04 11:37:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 11:37:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 11:37:43,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 11:37:43,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-04 11:37:43,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-04 11:37:44,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:44,157 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:37:44,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:44,158 INFO L85 PathProgramCache]: Analyzing trace with hash 455037239, now seen corresponding path program 10 times [2022-03-04 11:37:44,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:44,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945450604] [2022-03-04 11:37:44,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:44,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 11 proven. 3446 refuted. 0 times theorem prover too weak. 4199 trivial. 0 not checked. [2022-03-04 11:37:47,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:47,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945450604] [2022-03-04 11:37:47,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945450604] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:37:47,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041028292] [2022-03-04 11:37:47,137 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 11:37:47,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:47,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:47,138 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) [2022-03-04 11:37:47,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-04 11:37:47,281 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 11:37:47,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:37:47,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 359 conjunts are in the unsatisfiable core [2022-03-04 11:37:47,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:37:49,711 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 13 treesize of output 9 [2022-03-04 11:37:49,743 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 13 treesize of output 9 [2022-03-04 11:37:49,822 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 11 proven. 3446 refuted. 0 times theorem prover too weak. 4199 trivial. 0 not checked. [2022-03-04 11:37:49,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:37:50,047 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:50,047 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 36 treesize of output 38 [2022-03-04 11:37:50,134 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:37:50,134 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 26 treesize of output 28 [2022-03-04 11:37:52,385 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 3457 refuted. 0 times theorem prover too weak. 4199 trivial. 0 not checked. [2022-03-04 11:37:52,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041028292] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:37:52,385 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:37:52,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 28 [2022-03-04 11:37:52,385 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486500651] [2022-03-04 11:37:52,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:37:52,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-04 11:37:52,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:52,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-04 11:37:52,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2022-03-04 11:37:52,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:52,386 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:52,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.896551724137931) internal successors, (55), 28 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:52,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:52,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:52,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:52,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:37:52,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-04 11:37:52,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-04 11:37:52,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-04 11:37:52,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 11:37:52,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-04 11:37:52,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:55,106 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4649 transitions and produced 3816 states. [2022-03-04 11:37:55,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:55,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 11:37:55,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-04 11:37:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:37:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-04 11:37:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 11:37:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 11:37:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 11:37:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-04 11:37:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-04 11:37:55,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-04 11:37:55,307 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,SelfDestructingSolverStorable9 [2022-03-04 11:37:55,308 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:37:55,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:55,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1257723235, now seen corresponding path program 11 times [2022-03-04 11:37:55,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:55,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278058343] [2022-03-04 11:37:55,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:55,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:57,380 INFO L134 CoverageAnalysis]: Checked inductivity of 7310 backedges. 11 proven. 3298 refuted. 0 times theorem prover too weak. 4001 trivial. 0 not checked. [2022-03-04 11:37:57,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:57,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278058343] [2022-03-04 11:37:57,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278058343] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:37:57,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128806123] [2022-03-04 11:37:57,381 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 11:37:57,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:57,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:57,382 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) [2022-03-04 11:37:57,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-04 11:37:57,691 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 50 check-sat command(s) [2022-03-04 11:37:57,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:37:57,700 WARN L261 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 860 conjunts are in the unsatisfiable core [2022-03-04 11:37:57,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:42:42,457 INFO L353 Elim1Store]: treesize reduction 10752, result has 0.0 percent of original size [2022-03-04 11:42:42,458 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 43 select indices, 43 select index equivalence classes, 0 disjoint index pairs (out of 903 index pairs), introduced 43 new quantified variables, introduced 903 case distinctions, treesize of input 1105 treesize of output 765 [2022-03-04 11:42:45,406 INFO L353 Elim1Store]: treesize reduction 10752, result has 0.0 percent of original size [2022-03-04 11:42:45,408 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 43 select indices, 43 select index equivalence classes, 0 disjoint index pairs (out of 903 index pairs), introduced 43 new quantified variables, introduced 903 case distinctions, treesize of input 598 treesize of output 254 [2022-03-04 11:42:46,638 INFO L134 CoverageAnalysis]: Checked inductivity of 7310 backedges. 3254 proven. 4056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:42:46,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-03-04 11:51:00,013 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-04 11:51:00,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-04 11:51:00,032 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 11:51:00,032 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 11:51:00,032 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 11:51:00,213 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,SelfDestructingSolverStorable10 [2022-03-04 11:51:00,214 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 356 with TraceHistMax 43,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 500 known predicates. [2022-03-04 11:51:00,215 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-04 11:51:00,215 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-04 11:51:00,218 INFO L732 BasicCegarLoop]: Path program histogram: [11] [2022-03-04 11:51:00,220 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 11:51:00,220 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 11:51:00,221 INFO L202 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 11:51:00 BasicIcfg [2022-03-04 11:51:00,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 11:51:00,221 INFO L158 Benchmark]: Toolchain (without parser) took 833912.33ms. Allocated memory was 174.1MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 132.3MB in the beginning and 995.1MB in the end (delta: -862.8MB). Peak memory consumption was 903.9MB. Max. memory is 8.0GB. [2022-03-04 11:51:00,222 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 174.1MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 11:51:00,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.87ms. Allocated memory is still 174.1MB. Free memory was 132.2MB in the beginning and 130.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-04 11:51:00,222 INFO L158 Benchmark]: Boogie Preprocessor took 12.62ms. Allocated memory is still 174.1MB. Free memory was 130.7MB in the beginning and 129.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 11:51:00,222 INFO L158 Benchmark]: RCFGBuilder took 162.82ms. Allocated memory is still 174.1MB. Free memory was 129.6MB in the beginning and 119.8MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 11:51:00,222 INFO L158 Benchmark]: TraceAbstraction took 833715.02ms. Allocated memory was 174.1MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 119.3MB in the beginning and 995.1MB in the end (delta: -875.8MB). Peak memory consumption was 890.2MB. Max. memory is 8.0GB. [2022-03-04 11:51:00,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09ms. Allocated memory is still 174.1MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.87ms. Allocated memory is still 174.1MB. Free memory was 132.2MB in the beginning and 130.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.62ms. Allocated memory is still 174.1MB. Free memory was 130.7MB in the beginning and 129.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 162.82ms. Allocated memory is still 174.1MB. Free memory was 129.6MB in the beginning and 119.8MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 833715.02ms. Allocated memory was 174.1MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 119.3MB in the beginning and 995.1MB in the end (delta: -875.8MB). Peak memory consumption was 890.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 356 with TraceHistMax 43,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 500 known predicates. - TimeoutResultAtElement [Line: 57]: 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 356 with TraceHistMax 43,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 500 known predicates. - TimeoutResultAtElement [Line: 57]: 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 356 with TraceHistMax 43,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 500 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 36 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 833.6s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 14.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 259, 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, 3.2s SatisfiabilityAnalysisTime, 28.1s InterpolantComputationTime, 3421 NumberOfCodeBlocks, 3421 NumberOfCodeBlocksAsserted, 92 NumberOfCheckSat, 4818 ConstructedInterpolants, 2 QuantifiedInterpolants, 68202 SizeOfPredicates, 85 NumberOfNonLiveVariables, 4716 ConjunctsInSsa, 1293 ConjunctsInUnsatCore, 27 InterpolantComputations, 2 PerfectInterpolantSequences, 38207/61653 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