/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/three-array-max.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 01:14:18,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 01:14:18,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 01:14:18,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 01:14:18,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 01:14:18,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 01:14:18,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 01:14:18,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 01:14:18,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 01:14:18,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 01:14:18,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 01:14:18,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 01:14:18,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 01:14:18,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 01:14:18,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 01:14:18,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 01:14:18,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 01:14:18,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 01:14:18,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 01:14:18,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 01:14:18,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 01:14:18,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 01:14:18,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 01:14:18,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 01:14:18,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-04 01:14:18,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-04 01:14:18,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-04 01:14:18,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-04 01:14:18,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-04 01:14:18,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-04 01:14:18,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 01:14:18,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 01:14:18,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 01:14:18,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 01:14:18,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 01:14:18,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 01:14:18,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 01:14:18,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 01:14:18,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 01:14:18,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 01:14:18,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 01:14:18,277 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-04 01:14:18,300 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 01:14:18,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 01:14:18,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 01:14:18,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 01:14:18,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 01:14:18,302 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 01:14:18,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 01:14:18,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 01:14:18,302 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 01:14:18,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 01:14:18,303 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 01:14:18,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 01:14:18,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 01:14:18,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 01:14:18,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 01:14:18,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 01:14:18,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 01:14:18,304 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 01:14:18,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 01:14:18,304 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 01:14:18,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 01:14:18,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 01:14:18,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 01:14:18,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 01:14:18,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 01:14:18,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:14:18,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 01:14:18,305 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 01:14:18,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 01:14:18,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 01:14:18,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 01:14:18,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 01:14:18,305 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 01:14:18,305 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 01:14:18,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 01:14:18,306 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 01:14:18,306 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 01:14:18,306 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 01:14:18,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 01:14:18,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 01:14:18,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 01:14:18,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 01:14:18,503 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 01:14:18,506 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 01:14:18,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl [2022-03-04 01:14:18,507 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl' [2022-03-04 01:14:18,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 01:14:18,529 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 01:14:18,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 01:14:18,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 01:14:18,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 01:14:18,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:14:18" (1/1) ... [2022-03-04 01:14:18,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:14:18" (1/1) ... [2022-03-04 01:14:18,547 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 01:14:18,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 01:14:18,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 01:14:18,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 01:14:18,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 01:14:18,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:14:18" (1/1) ... [2022-03-04 01:14:18,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:14:18" (1/1) ... [2022-03-04 01:14:18,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:14:18" (1/1) ... [2022-03-04 01:14:18,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:14:18" (1/1) ... [2022-03-04 01:14:18,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:14:18" (1/1) ... [2022-03-04 01:14:18,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:14:18" (1/1) ... [2022-03-04 01:14:18,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:14:18" (1/1) ... [2022-03-04 01:14:18,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 01:14:18,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 01:14:18,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 01:14:18,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 01:14:18,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:14:18" (1/1) ... [2022-03-04 01:14:18,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:14:18,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:14:18,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 01:14:18,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 01:14:18,690 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 01:14:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 01:14:18,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 01:14:18,691 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 01:14:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 01:14:18,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 01:14:18,692 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 01:14:18,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 01:14:18,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 01:14:18,692 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 01:14:18,692 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 01:14:18,692 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 01:14:18,693 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 01:14:18,729 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 01:14:18,731 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 01:14:18,849 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 01:14:18,883 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 01:14:18,883 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 01:14:18,884 INFO L202 PluginConnector]: Adding new model three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:14:18 BoogieIcfgContainer [2022-03-04 01:14:18,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 01:14:18,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 01:14:18,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 01:14:18,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 01:14:18,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:14:18" (1/2) ... [2022-03-04 01:14:18,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69856176 and model type three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 01:14:18, skipping insertion in model container [2022-03-04 01:14:18,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:14:18" (2/2) ... [2022-03-04 01:14:18,907 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-max.wvr.bpl [2022-03-04 01:14:18,911 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 01:14:18,911 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 01:14:18,911 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 01:14:18,911 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 01:14:18,964 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 01:14:19,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 01:14:19,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:14:19,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 01:14:19,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 01:14:19,050 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 01:14:19,059 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-04 01:14:19,059 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 01:14:24,768 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 69732 transitions and produced 21912 states. [2022-03-04 01:14:24,770 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:14:24,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:14:24,774 INFO L85 PathProgramCache]: Analyzing trace with hash 470054358, now seen corresponding path program 1 times [2022-03-04 01:14:24,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:14:24,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52310670] [2022-03-04 01:14:24,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:14:24,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:14:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:14:25,138 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-03-04 01:14:25,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:14:25,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52310670] [2022-03-04 01:14:25,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52310670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 01:14:25,139 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 01:14:25,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 01:14:25,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896479053] [2022-03-04 01:14:25,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 01:14:25,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 01:14:25,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:14:25,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 01:14:25,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 01:14:25,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:25,186 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:14:25,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:14:25,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:25,357 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 303 transitions and produced 196 states. [2022-03-04 01:14:25,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:25,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 01:14:25,358 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:14:25,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:14:25,361 INFO L85 PathProgramCache]: Analyzing trace with hash 706693770, now seen corresponding path program 2 times [2022-03-04 01:14:25,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:14:25,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92540267] [2022-03-04 01:14:25,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:14:25,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:14:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:14:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-04 01:14:25,446 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:14:25,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92540267] [2022-03-04 01:14:25,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92540267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 01:14:25,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 01:14:25,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 01:14:25,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375547478] [2022-03-04 01:14:25,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 01:14:25,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 01:14:25,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:14:25,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 01:14:25,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 01:14:25,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:25,449 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:14:25,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:14:25,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:25,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:25,517 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 195 transitions and produced 154 states. [2022-03-04 01:14:25,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:25,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:25,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-04 01:14:25,519 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:14:25,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:14:25,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1199032368, now seen corresponding path program 1 times [2022-03-04 01:14:25,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:14:25,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117513500] [2022-03-04 01:14:25,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:14:25,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:14:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:14:25,647 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-04 01:14:25,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:14:25,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117513500] [2022-03-04 01:14:25,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117513500] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:14:25,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34229001] [2022-03-04 01:14:25,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:14:25,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:14:25,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:14:25,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:14:25,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 01:14:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:14:25,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-04 01:14:25,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:14:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-04 01:14:25,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:14:25,900 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-04 01:14:25,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34229001] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:14:25,900 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:14:25,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-03-04 01:14:25,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657119358] [2022-03-04 01:14:25,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:14:25,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-04 01:14:25,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:14:25,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-04 01:14:25,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-03-04 01:14:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:25,902 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:14:25,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:14:25,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:25,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:25,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:26,115 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 243 transitions and produced 182 states. [2022-03-04 01:14:26,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:26,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:26,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 01:14:26,133 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 01:14:26,331 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 [2022-03-04 01:14:26,332 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:14:26,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:14:26,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1740499598, now seen corresponding path program 2 times [2022-03-04 01:14:26,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:14:26,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674431621] [2022-03-04 01:14:26,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:14:26,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:14:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:14:26,428 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-04 01:14:26,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:14:26,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674431621] [2022-03-04 01:14:26,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674431621] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:14:26,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130331115] [2022-03-04 01:14:26,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 01:14:26,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:14:26,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:14:26,430 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:14:26,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 01:14:26,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 01:14:26,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:14:26,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-04 01:14:26,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:14:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 28 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-04 01:14:26,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:14:26,629 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 28 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-04 01:14:26,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130331115] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:14:26,630 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:14:26,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 11 [2022-03-04 01:14:26,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387928396] [2022-03-04 01:14:26,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:14:26,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-04 01:14:26,631 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:14:26,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-04 01:14:26,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-03-04 01:14:26,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:26,633 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:14:26,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 11 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 01:14:26,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:26,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:26,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 01:14:26,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:26,780 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 247 transitions and produced 192 states. [2022-03-04 01:14:26,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:26,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:26,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 01:14:26,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-04 01:14:26,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-04 01:14:26,997 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 [2022-03-04 01:14:26,998 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:14:26,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:14:26,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1895502484, now seen corresponding path program 3 times [2022-03-04 01:14:26,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:14:26,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284595247] [2022-03-04 01:14:26,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:14:26,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:14:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:14:27,092 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-04 01:14:27,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:14:27,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284595247] [2022-03-04 01:14:27,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284595247] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:14:27,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93999228] [2022-03-04 01:14:27,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 01:14:27,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:14:27,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:14:27,108 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:14:27,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 01:14:27,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-03-04 01:14:27,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:14:27,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-04 01:14:27,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:14:27,252 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 9 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-04 01:14:27,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:14:27,335 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 9 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-04 01:14:27,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93999228] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:14:27,336 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:14:27,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 10 [2022-03-04 01:14:27,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683230229] [2022-03-04 01:14:27,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:14:27,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-04 01:14:27,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:14:27,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-04 01:14:27,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-03-04 01:14:27,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:27,337 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:14:27,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:14:27,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:27,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:27,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 01:14:27,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-04 01:14:27,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:30,378 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 28855 transitions and produced 10750 states. [2022-03-04 01:14:30,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:30,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:30,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 01:14:30,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-04 01:14:30,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-04 01:14:30,399 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 01:14:30,593 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 [2022-03-04 01:14:30,593 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:14:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:14:30,593 INFO L85 PathProgramCache]: Analyzing trace with hash 858380236, now seen corresponding path program 4 times [2022-03-04 01:14:30,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:14:30,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486003336] [2022-03-04 01:14:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:14:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:14:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:14:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 32 proven. 16 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-04 01:14:30,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:14:30,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486003336] [2022-03-04 01:14:30,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486003336] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:14:30,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769165953] [2022-03-04 01:14:30,672 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 01:14:30,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:14:30,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:14:30,674 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:14:30,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 01:14:30,711 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 01:14:30,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:14:30,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-04 01:14:30,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:14:30,796 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 32 proven. 16 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-04 01:14:30,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:14:30,887 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 32 proven. 16 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-04 01:14:30,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769165953] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:14:30,887 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:14:30,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 12 [2022-03-04 01:14:30,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689995923] [2022-03-04 01:14:30,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:14:30,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-04 01:14:30,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:14:30,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-04 01:14:30,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-03-04 01:14:30,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:30,889 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:14:30,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 12 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 01:14:30,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:30,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:30,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 01:14:30,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-04 01:14:30,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-04 01:14:30,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:31,025 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 258 transitions and produced 207 states. [2022-03-04 01:14:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 01:14:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-04 01:14:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-04 01:14:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:14:31,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 01:14:31,235 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 [2022-03-04 01:14:31,235 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:14:31,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:14:31,236 INFO L85 PathProgramCache]: Analyzing trace with hash 25935850, now seen corresponding path program 5 times [2022-03-04 01:14:31,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:14:31,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823786666] [2022-03-04 01:14:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:14:31,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:14:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:14:31,364 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 38 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-04 01:14:31,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:14:31,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823786666] [2022-03-04 01:14:31,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823786666] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:14:31,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301385571] [2022-03-04 01:14:31,364 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 01:14:31,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:14:31,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:14:31,366 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:14:31,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 01:14:31,409 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-03-04 01:14:31,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:14:31,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-04 01:14:31,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:14:31,503 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-04 01:14:31,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:14:31,589 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-04 01:14:31,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301385571] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:14:31,590 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:14:31,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 12 [2022-03-04 01:14:31,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967109626] [2022-03-04 01:14:31,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:14:31,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-04 01:14:31,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:14:31,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-04 01:14:31,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-03-04 01:14:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:31,591 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:14:31,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:14:31,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:31,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:31,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 01:14:31,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-04 01:14:31,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-04 01:14:31,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:14:31,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:14:35,550 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 37877 transitions and produced 13612 states. [2022-03-04 01:14:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 01:14:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 01:14:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-04 01:14:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-04 01:14:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:14:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-04 01:14:35,570 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 01:14:35,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:14:35,770 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:14:35,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:14:35,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1734681270, now seen corresponding path program 6 times [2022-03-04 01:14:35,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:14:35,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873571392] [2022-03-04 01:14:35,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:14:35,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:14:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-04 01:29:02,146 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-04 01:29:02,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-04 01:29:02,147 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 55 with TraceHistMax 5,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-35-4-32-4-33-4-33-4-33-4-33-4-31-4-33-4-31-4-30-4-30-4-30-4-29-4-23-4-23-4-21-4-21-4-21-4-21-4-20-4-19-4-19-4-15-4-15-4-15-4-15-4-15-4-15-4-15-4-15-4-10-4-9-4-9-4-9-4-9-4-9-3-9-3-9-3-9-3-9-3-9-3-9-3-9-3-8-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-2-7-2-6-2-4-2-3-2-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-3-1 context. [2022-03-04 01:29:02,148 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-04 01:29:02,149 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-04 01:29:02,149 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-04 01:29:02,154 INFO L732 BasicCegarLoop]: Path program histogram: [6, 2] [2022-03-04 01:29:02,156 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 01:29:02,156 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 01:29:02,157 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 01:29:02,158 INFO L202 PluginConnector]: Adding new model three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 01:29:02 BasicIcfg [2022-03-04 01:29:02,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 01:29:02,159 INFO L158 Benchmark]: Toolchain (without parser) took 883629.74ms. Allocated memory was 155.2MB in the beginning and 4.6GB in the end (delta: 4.4GB). Free memory was 117.5MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB. [2022-03-04 01:29:02,159 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 155.2MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 01:29:02,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.61ms. Allocated memory is still 155.2MB. Free memory was 117.4MB in the beginning and 115.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-04 01:29:02,160 INFO L158 Benchmark]: Boogie Preprocessor took 11.43ms. Allocated memory is still 155.2MB. Free memory was 115.9MB in the beginning and 114.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 01:29:02,160 INFO L158 Benchmark]: RCFGBuilder took 309.30ms. Allocated memory is still 155.2MB. Free memory was 114.9MB in the beginning and 132.8MB in the end (delta: -17.8MB). Peak memory consumption was 14.8MB. Max. memory is 8.0GB. [2022-03-04 01:29:02,160 INFO L158 Benchmark]: TraceAbstraction took 883272.85ms. Allocated memory was 155.2MB in the beginning and 4.6GB in the end (delta: 4.4GB). Free memory was 132.3MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB. [2022-03-04 01:29:02,161 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 0.14ms. Allocated memory is still 155.2MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.61ms. Allocated memory is still 155.2MB. Free memory was 117.4MB in the beginning and 115.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.43ms. Allocated memory is still 155.2MB. Free memory was 115.9MB in the beginning and 114.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 309.30ms. Allocated memory is still 155.2MB. Free memory was 114.9MB in the beginning and 132.8MB in the end (delta: -17.8MB). Peak memory consumption was 14.8MB. Max. memory is 8.0GB. * TraceAbstraction took 883272.85ms. Allocated memory was 155.2MB in the beginning and 4.6GB in the end (delta: 4.4GB). Free memory was 132.3MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 3.3GB. 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: 74]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 55 with TraceHistMax 5,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-35-4-32-4-33-4-33-4-33-4-33-4-31-4-33-4-31-4-30-4-30-4-30-4-29-4-23-4-23-4-21-4-21-4-21-4-21-4-20-4-19-4-19-4-15-4-15-4-15-4-15-4-15-4-15-4-15-4-15-4-10-4-9-4-9-4-9-4-9-4-9-3-9-3-9-3-9-3-9-3-9-3-9-3-9-3-8-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-2-7-2-6-2-4-2-3-2-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-3-1 context. - TimeoutResultAtElement [Line: 67]: 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 55 with TraceHistMax 5,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-35-4-32-4-33-4-33-4-33-4-33-4-31-4-33-4-31-4-30-4-30-4-30-4-29-4-23-4-23-4-21-4-21-4-21-4-21-4-20-4-19-4-19-4-15-4-15-4-15-4-15-4-15-4-15-4-15-4-15-4-10-4-9-4-9-4-9-4-9-4-9-3-9-3-9-3-9-3-9-3-9-3-9-3-9-3-8-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-2-7-2-6-2-4-2-3-2-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-3-1 context. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 55 with TraceHistMax 5,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-35-4-32-4-33-4-33-4-33-4-33-4-31-4-33-4-31-4-30-4-30-4-30-4-29-4-23-4-23-4-21-4-21-4-21-4-21-4-20-4-19-4-19-4-15-4-15-4-15-4-15-4-15-4-15-4-15-4-15-4-10-4-9-4-9-4-9-4-9-4-9-3-9-3-9-3-9-3-9-3-9-3-9-3-9-3-8-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-2-7-2-6-2-4-2-3-2-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-3-1 context. - TimeoutResultAtElement [Line: 67]: 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 55 with TraceHistMax 5,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-35-4-32-4-33-4-33-4-33-4-33-4-31-4-33-4-31-4-30-4-30-4-30-4-29-4-23-4-23-4-21-4-21-4-21-4-21-4-20-4-19-4-19-4-15-4-15-4-15-4-15-4-15-4-15-4-15-4-15-4-10-4-9-4-9-4-9-4-9-4-9-3-9-3-9-3-9-3-9-3-9-3-9-3-9-3-8-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-3-7-2-7-2-6-2-4-2-3-2-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-3-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 883.1s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 13.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 79, 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: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 565 NumberOfCodeBlocks, 561 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 780 ConstructedInterpolants, 0 QuantifiedInterpolants, 2586 SizeOfPredicates, 10 NumberOfNonLiveVariables, 663 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 17 InterpolantComputations, 2 PerfectInterpolantSequences, 741/990 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 [2022-03-04 01:29:02,183 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