/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 23:53:20,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 23:53:20,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 23:53:20,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 23:53:20,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 23:53:20,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 23:53:20,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 23:53:20,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 23:53:20,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 23:53:20,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 23:53:20,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 23:53:20,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 23:53:20,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 23:53:20,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 23:53:20,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 23:53:20,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 23:53:20,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 23:53:20,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 23:53:20,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 23:53:20,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 23:53:20,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 23:53:20,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 23:53:20,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 23:53:20,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 23:53:20,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-01 23:53:20,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-01 23:53:20,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-01 23:53:20,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-01 23:53:20,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-01 23:53:20,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-01 23:53:20,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-01 23:53:20,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-01 23:53:20,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-01 23:53:20,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-01 23:53:20,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-01 23:53:20,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-01 23:53:20,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-01 23:53:20,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-01 23:53:20,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 23:53:20,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 23:53:20,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 23:53:20,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-01 23:53:20,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 23:53:20,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 23:53:20,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 23:53:20,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 23:53:20,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 23:53:20,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 23:53:20,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 23:53:20,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 23:53:20,871 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 23:53:20,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 23:53:20,872 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 23:53:20,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 23:53:20,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 23:53:20,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 23:53:20,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 23:53:20,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 23:53:20,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 23:53:20,873 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 23:53:20,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 23:53:20,873 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 23:53:20,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 23:53:20,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 23:53:20,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 23:53:20,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 23:53:20,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 23:53:20,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 23:53:20,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 23:53:20,874 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-01 23:53:20,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 23:53:20,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 23:53:20,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 23:53:20,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 23:53:20,875 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 23:53:20,875 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-01 23:53:20,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 23:53:20,875 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-01 23:53:20,875 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-01 23:53:20,875 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-01 23:53:20,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 23:53:21,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 23:53:21,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 23:53:21,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 23:53:21,090 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-01 23:53:21,091 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-01 23:53:21,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl [2022-03-01 23:53:21,092 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl' [2022-03-01 23:53:21,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 23:53:21,120 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-01 23:53:21,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 23:53:21,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 23:53:21,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 23:53:21,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:53:21" (1/1) ... [2022-03-01 23:53:21,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:53:21" (1/1) ... [2022-03-01 23:53:21,139 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-01 23:53:21,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 23:53:21,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 23:53:21,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 23:53:21,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 23:53:21,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:53:21" (1/1) ... [2022-03-01 23:53:21,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:53:21" (1/1) ... [2022-03-01 23:53:21,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:53:21" (1/1) ... [2022-03-01 23:53:21,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:53:21" (1/1) ... [2022-03-01 23:53:21,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:53:21" (1/1) ... [2022-03-01 23:53:21,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:53:21" (1/1) ... [2022-03-01 23:53:21,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:53:21" (1/1) ... [2022-03-01 23:53:21,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 23:53:21,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 23:53:21,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 23:53:21,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 23:53:21,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:53:21" (1/1) ... [2022-03-01 23:53:21,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 23:53:21,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:53:21,182 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) [2022-03-01 23:53:21,185 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 [2022-03-01 23:53:21,210 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-01 23:53:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 23:53:21,210 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 23:53:21,210 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-01 23:53:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 23:53:21,210 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 23:53:21,210 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-01 23:53:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 23:53:21,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 23:53:21,210 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-01 23:53:21,211 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 23:53:21,211 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 23:53:21,211 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 23:53:21,248 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 23:53:21,249 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 23:53:21,333 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 23:53:21,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 23:53:21,350 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 23:53:21,351 INFO L202 PluginConnector]: Adding new model ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 11:53:21 BoogieIcfgContainer [2022-03-01 23:53:21,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 23:53:21,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 23:53:21,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 23:53:21,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 23:53:21,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:53:21" (1/2) ... [2022-03-01 23:53:21,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7adead and model type ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 11:53:21, skipping insertion in model container [2022-03-01 23:53:21,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 11:53:21" (2/2) ... [2022-03-01 23:53:21,357 INFO L111 eAbstractionObserver]: Analyzing ICFG ring.wvr.bpl [2022-03-01 23:53:21,360 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 23:53:21,361 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 23:53:21,361 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 23:53:21,361 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 23:53:21,409 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-01 23:53:21,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-01 23:53:21,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:53:21,463 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) [2022-03-01 23:53:21,465 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 [2022-03-01 23:53:21,497 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 23:53:21,505 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-01 23:53:21,505 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-01 23:54:28,096 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 438561 transitions and produced 145357 states. [2022-03-01 23:54:28,099 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 23:54:28,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:54:28,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1158891970, now seen corresponding path program 1 times [2022-03-01 23:54:28,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:54:28,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666372497] [2022-03-01 23:54:28,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:54:28,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:54:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:54:28,546 INFO L134 CoverageAnalysis]: Checked inductivity of 4542 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 4448 trivial. 0 not checked. [2022-03-01 23:54:28,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:54:28,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666372497] [2022-03-01 23:54:28,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666372497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 23:54:28,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 23:54:28,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 23:54:28,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299233884] [2022-03-01 23:54:28,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 23:54:28,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 23:54:28,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:54:28,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 23:54:28,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 23:54:28,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:54:28,589 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:54:28,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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) [2022-03-01 23:54:28,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:54:33,690 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 22730 transitions and produced 8076 states. [2022-03-01 23:54:33,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 23:54:33,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 23:54:33,691 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 23:54:33,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:54:33,692 INFO L85 PathProgramCache]: Analyzing trace with hash -162622515, now seen corresponding path program 2 times [2022-03-01 23:54:33,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:54:33,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900926844] [2022-03-01 23:54:33,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:54:33,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:54:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:54:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3812 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 3570 trivial. 0 not checked. [2022-03-01 23:54:33,905 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:54:33,905 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900926844] [2022-03-01 23:54:33,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900926844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 23:54:33,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 23:54:33,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-01 23:54:33,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038174610] [2022-03-01 23:54:33,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 23:54:33,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 23:54:33,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:54:33,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 23:54:33,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-01 23:54:33,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:54:33,907 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:54:33,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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) [2022-03-01 23:54:33,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-01 23:54:33,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:54:46,448 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 77020 transitions and produced 25845 states. [2022-03-01 23:54:46,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 23:54:46,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:46,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 23:54:46,449 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 23:54:46,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:54:46,451 INFO L85 PathProgramCache]: Analyzing trace with hash 706006451, now seen corresponding path program 3 times [2022-03-01 23:54:46,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:54:46,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056064448] [2022-03-01 23:54:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:54:46,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:54:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:54:46,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3298 backedges. 362 proven. 2 refuted. 0 times theorem prover too weak. 2934 trivial. 0 not checked. [2022-03-01 23:54:46,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:54:46,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056064448] [2022-03-01 23:54:46,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056064448] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:54:46,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717520472] [2022-03-01 23:54:46,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 23:54:46,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:54:46,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:54:46,618 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) [2022-03-01 23:54:46,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 23:54:46,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2022-03-01 23:54:46,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:54:46,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 34 conjunts are in the unsatisfiable core [2022-03-01 23:54:46,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:54:47,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3298 backedges. 2913 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-03-01 23:54:47,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 23:54:47,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717520472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 23:54:47,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 23:54:47,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4] total 24 [2022-03-01 23:54:47,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430233503] [2022-03-01 23:54:47,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 23:54:47,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-01 23:54:47,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:54:47,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-01 23:54:47,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=320, Unknown=0, NotChecked=0, Total=600 [2022-03-01 23:54:47,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:54:47,664 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:54:47,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.833333333333333) internal successors, (188), 23 states have internal predecessors, (188), 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) [2022-03-01 23:54:47,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-01 23:54:47,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:47,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:54:48,664 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3012 transitions and produced 1482 states. [2022-03-01 23:54:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 23:54:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:48,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:48,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-01 23:54:48,875 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,SelfDestructingSolverStorable2 [2022-03-01 23:54:48,876 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 23:54:48,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:54:48,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1320199695, now seen corresponding path program 4 times [2022-03-01 23:54:48,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:54:48,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807953550] [2022-03-01 23:54:48,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:54:48,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:54:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:54:49,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4296 backedges. 2089 proven. 66 refuted. 0 times theorem prover too weak. 2141 trivial. 0 not checked. [2022-03-01 23:54:49,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:54:49,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807953550] [2022-03-01 23:54:49,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807953550] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:54:49,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277089174] [2022-03-01 23:54:49,117 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 23:54:49,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:54:49,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:54:49,118 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) [2022-03-01 23:54:49,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-01 23:54:49,278 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 23:54:49,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:54:49,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 30 conjunts are in the unsatisfiable core [2022-03-01 23:54:49,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:54:49,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4296 backedges. 2089 proven. 14 refuted. 0 times theorem prover too weak. 2193 trivial. 0 not checked. [2022-03-01 23:54:49,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:54:50,357 INFO L134 CoverageAnalysis]: Checked inductivity of 4296 backedges. 2089 proven. 14 refuted. 0 times theorem prover too weak. 2193 trivial. 0 not checked. [2022-03-01 23:54:50,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277089174] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:54:50,358 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:54:50,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 4 [2022-03-01 23:54:50,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898951116] [2022-03-01 23:54:50,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:54:50,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 23:54:50,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:54:50,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 23:54:50,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-01 23:54:50,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:54:50,361 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:54:50,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 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) [2022-03-01 23:54:50,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-01 23:54:50,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:50,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:50,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:54:50,916 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 815 transitions and produced 544 states. [2022-03-01 23:54:50,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 23:54:50,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:50,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:50,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:50,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-01 23:54:51,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:54:51,134 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 23:54:51,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:54:51,134 INFO L85 PathProgramCache]: Analyzing trace with hash 975561598, now seen corresponding path program 5 times [2022-03-01 23:54:51,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:54:51,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255236406] [2022-03-01 23:54:51,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:54:51,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:54:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:54:51,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 316 proven. 151 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2022-03-01 23:54:51,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:54:51,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255236406] [2022-03-01 23:54:51,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255236406] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:54:51,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726928468] [2022-03-01 23:54:51,355 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 23:54:51,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:54:51,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:54:51,357 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) [2022-03-01 23:54:51,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-01 23:54:51,525 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2022-03-01 23:54:51,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:54:51,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 58 conjunts are in the unsatisfiable core [2022-03-01 23:54:51,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:54:51,853 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-01 23:54:51,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 153 proven. 79 refuted. 0 times theorem prover too weak. 1175 trivial. 0 not checked. [2022-03-01 23:54:51,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:54:51,946 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-03-01 23:54:51,946 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 12 treesize of output 11 [2022-03-01 23:54:52,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 153 proven. 79 refuted. 0 times theorem prover too weak. 1175 trivial. 0 not checked. [2022-03-01 23:54:52,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726928468] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:54:52,343 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:54:52,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 12 [2022-03-01 23:54:52,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662992654] [2022-03-01 23:54:52,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:54:52,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-01 23:54:52,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:54:52,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-01 23:54:52,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-03-01 23:54:52,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:54:52,344 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:54:52,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 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) [2022-03-01 23:54:52,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-01 23:54:52,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:52,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:52,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:52,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:54:52,956 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 970 transitions and produced 635 states. [2022-03-01 23:54:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 23:54:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 23:54:52,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 23:54:52,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-01 23:54:53,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:54:53,158 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 23:54:53,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:54:53,158 INFO L85 PathProgramCache]: Analyzing trace with hash -2003617789, now seen corresponding path program 6 times [2022-03-01 23:54:53,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:54:53,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98517277] [2022-03-01 23:54:53,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:54:53,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:54:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:54:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1772 backedges. 14 proven. 808 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2022-03-01 23:54:57,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:54:57,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98517277] [2022-03-01 23:54:57,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98517277] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:54:57,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060590722] [2022-03-01 23:54:57,450 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-01 23:54:57,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:54:57,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:54:57,452 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) [2022-03-01 23:54:57,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-01 23:54:57,583 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2022-03-01 23:54:57,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:54:57,590 WARN L261 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 372 conjunts are in the unsatisfiable core [2022-03-01 23:54:57,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:57:04,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 23:57:04,545 INFO L244 Elim1Store]: Index analysis took 140 ms [2022-03-01 23:57:04,671 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 23:57:04,672 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 105 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 15 case distinctions, treesize of input 287 treesize of output 321 Received shutdown request... [2022-03-02 00:07:13,753 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-02 00:07:13,755 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-02 00:07:13,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 00:07:13,793 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 00:07:13,793 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 [2022-03-02 00:07:13,793 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 [2022-03-02 00:07:13,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:07:13,972 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 258 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7 for 14ms.. [2022-03-02 00:07:13,974 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-02 00:07:13,974 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-02 00:07:13,974 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-02 00:07:13,978 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2022-03-02 00:07:13,980 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 00:07:13,980 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 00:07:13,992 INFO L202 PluginConnector]: Adding new model ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 12:07:13 BasicIcfg [2022-03-02 00:07:13,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 00:07:13,994 INFO L158 Benchmark]: Toolchain (without parser) took 832872.72ms. Allocated memory was 198.2MB in the beginning and 6.9GB in the end (delta: 6.7GB). Free memory was 163.4MB in the beginning and 3.9GB in the end (delta: -3.8GB). Peak memory consumption was 6.2GB. Max. memory is 8.0GB. [2022-03-02 00:07:13,994 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.28ms. Allocated memory is still 198.2MB. Free memory is still 164.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 00:07:13,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.45ms. Allocated memory is still 198.2MB. Free memory was 163.2MB in the beginning and 161.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 00:07:13,997 INFO L158 Benchmark]: Boogie Preprocessor took 15.13ms. Allocated memory is still 198.2MB. Free memory was 161.7MB in the beginning and 160.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 00:07:13,997 INFO L158 Benchmark]: RCFGBuilder took 194.02ms. Allocated memory is still 198.2MB. Free memory was 160.7MB in the beginning and 150.1MB in the end (delta: 10.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-02 00:07:13,997 INFO L158 Benchmark]: TraceAbstraction took 832640.13ms. Allocated memory was 198.2MB in the beginning and 6.9GB in the end (delta: 6.7GB). Free memory was 149.4MB in the beginning and 3.9GB in the end (delta: -3.8GB). Peak memory consumption was 6.1GB. Max. memory is 8.0GB. [2022-03-02 00:07:13,998 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 0.28ms. Allocated memory is still 198.2MB. Free memory is still 164.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.45ms. Allocated memory is still 198.2MB. Free memory was 163.2MB in the beginning and 161.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.13ms. Allocated memory is still 198.2MB. Free memory was 161.7MB in the beginning and 160.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 194.02ms. Allocated memory is still 198.2MB. Free memory was 160.7MB in the beginning and 150.1MB in the end (delta: 10.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 832640.13ms. Allocated memory was 198.2MB in the beginning and 6.9GB in the end (delta: 6.7GB). Free memory was 149.4MB in the beginning and 3.9GB in the end (delta: -3.8GB). Peak memory consumption was 6.1GB. 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: 104]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 258 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7 for 14ms.. - TimeoutResultAtElement [Line: 98]: 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 258 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7 for 14ms.. - TimeoutResultAtElement [Line: 97]: 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 258 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7 for 14ms.. - TimeoutResultAtElement [Line: 97]: 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 258 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 7 for 14ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 71 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 832.5s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 86.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 24, 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: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 2531 NumberOfCodeBlocks, 2497 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 3130 ConstructedInterpolants, 0 QuantifiedInterpolants, 7840 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2373 ConjunctsInSsa, 122 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 31654/32059 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