/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/buffer-mult-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 01:19:14,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 01:19:14,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 01:19:14,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 01:19:14,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 01:19:14,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 01:19:14,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 01:19:14,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 01:19:14,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 01:19:14,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 01:19:14,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 01:19:14,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 01:19:14,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 01:19:14,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 01:19:14,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 01:19:14,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 01:19:14,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 01:19:14,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 01:19:14,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 01:19:14,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 01:19:14,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 01:19:14,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 01:19:14,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 01:19:14,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 01:19:14,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-04 01:19:14,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-04 01:19:14,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-04 01:19:14,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-04 01:19:14,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-04 01:19:14,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-04 01:19:14,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 01:19:14,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 01:19:14,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 01:19:14,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 01:19:14,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 01:19:14,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 01:19:14,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 01:19:14,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 01:19:14,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 01:19:14,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 01:19:14,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 01:19:14,837 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 01:19:14,863 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 01:19:14,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 01:19:14,864 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 01:19:14,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 01:19:14,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 01:19:14,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 01:19:14,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 01:19:14,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 01:19:14,865 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 01:19:14,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 01:19:14,866 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 01:19:14,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 01:19:14,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 01:19:14,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 01:19:14,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 01:19:14,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 01:19:14,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 01:19:14,867 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 01:19:14,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 01:19:14,867 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 01:19:14,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 01:19:14,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 01:19:14,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 01:19:14,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 01:19:14,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 01:19:14,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:19:14,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 01:19:14,868 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 01:19:14,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 01:19:14,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 01:19:14,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 01:19:14,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 01:19:14,868 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 01:19:14,868 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 01:19:14,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 01:19:14,868 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 01:19:14,868 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 01:19:14,868 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 01:19:14,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 01:19:15,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 01:19:15,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 01:19:15,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 01:19:15,062 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 01:19:15,063 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 01:19:15,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl [2022-03-04 01:19:15,066 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl' [2022-03-04 01:19:15,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 01:19:15,096 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 01:19:15,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 01:19:15,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 01:19:15,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 01:19:15,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:19:15" (1/1) ... [2022-03-04 01:19:15,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:19:15" (1/1) ... [2022-03-04 01:19:15,117 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 01:19:15,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 01:19:15,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 01:19:15,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 01:19:15,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 01:19:15,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:19:15" (1/1) ... [2022-03-04 01:19:15,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:19:15" (1/1) ... [2022-03-04 01:19:15,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:19:15" (1/1) ... [2022-03-04 01:19:15,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:19:15" (1/1) ... [2022-03-04 01:19:15,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:19:15" (1/1) ... [2022-03-04 01:19:15,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:19:15" (1/1) ... [2022-03-04 01:19:15,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:19:15" (1/1) ... [2022-03-04 01:19:15,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 01:19:15,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 01:19:15,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 01:19:15,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 01:19:15,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:19:15" (1/1) ... [2022-03-04 01:19:15,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:19:15,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:19:15,177 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 01:19:15,178 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 01:19:15,227 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 01:19:15,228 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 01:19:15,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 01:19:15,228 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 01:19:15,228 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 01:19:15,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 01:19:15,228 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 01:19:15,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 01:19:15,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 01:19:15,228 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 01:19:15,228 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 01:19:15,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 01:19:15,229 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-04 01:19:15,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-04 01:19:15,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-04 01:19:15,229 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 01:19:15,274 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 01:19:15,275 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 01:19:15,367 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 01:19:15,379 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 01:19:15,379 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 01:19:15,380 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:19:15 BoogieIcfgContainer [2022-03-04 01:19:15,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 01:19:15,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 01:19:15,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 01:19:15,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 01:19:15,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:19:15" (1/2) ... [2022-03-04 01:19:15,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c2bb5f and model type buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 01:19:15, skipping insertion in model container [2022-03-04 01:19:15,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:19:15" (2/2) ... [2022-03-04 01:19:15,395 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-mult-alt.wvr.bpl [2022-03-04 01:19:15,397 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 01:19:15,398 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 01:19:15,398 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 01:19:15,398 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 01:19:15,424 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-04 01:19:15,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 01:19:15,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:19:15,452 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 01:19:15,492 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 01:19:15,515 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 01:19:15,524 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 01:19:15,524 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-04 01:19:15,951 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1006 transitions and produced 792 states. [2022-03-04 01:19:15,953 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 01:19:15,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:19:15,960 INFO L85 PathProgramCache]: Analyzing trace with hash 59602232, now seen corresponding path program 1 times [2022-03-04 01:19:15,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:19:15,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117356538] [2022-03-04 01:19:15,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:19:15,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:19:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:19:17,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2517 backedges. 2029 proven. 434 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-03-04 01:19:17,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:19:17,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117356538] [2022-03-04 01:19:17,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117356538] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:19:17,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718840481] [2022-03-04 01:19:17,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:19:17,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:19:17,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:19:17,261 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 01:19:17,262 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 01:19:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:19:17,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 53 conjunts are in the unsatisfiable core [2022-03-04 01:19:17,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:19:18,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2517 backedges. 2416 proven. 8 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-04 01:19:18,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:19:19,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2517 backedges. 2416 proven. 8 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-04 01:19:19,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718840481] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:19:19,144 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:19:19,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 26, 26] total 85 [2022-03-04 01:19:19,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484338984] [2022-03-04 01:19:19,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:19:19,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-03-04 01:19:19,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:19:19,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-03-04 01:19:19,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1748, Invalid=5562, Unknown=0, NotChecked=0, Total=7310 [2022-03-04 01:19:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:19:19,180 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:19:19,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 5.034883720930233) internal successors, (433), 85 states have internal predecessors, (433), 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 01:19:19,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:19:21,998 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2531 transitions and produced 1974 states. [2022-03-04 01:19:21,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-03-04 01:19:22,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-04 01:19:22,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 01:19:22,216 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 01:19:22,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:19:22,219 INFO L85 PathProgramCache]: Analyzing trace with hash -229668852, now seen corresponding path program 2 times [2022-03-04 01:19:22,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:19:22,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316602496] [2022-03-04 01:19:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:19:22,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:19:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:19:24,848 INFO L134 CoverageAnalysis]: Checked inductivity of 13826 backedges. 6466 proven. 7241 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-03-04 01:19:24,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:19:24,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316602496] [2022-03-04 01:19:24,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316602496] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:19:24,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682558296] [2022-03-04 01:19:24,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 01:19:24,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:19:24,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:19:24,854 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 01:19:24,854 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 01:19:25,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 01:19:25,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:19:25,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 138 conjunts are in the unsatisfiable core [2022-03-04 01:19:25,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:19:27,883 INFO L134 CoverageAnalysis]: Checked inductivity of 13826 backedges. 11950 proven. 1723 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-03-04 01:19:27,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:19:29,575 INFO L134 CoverageAnalysis]: Checked inductivity of 13826 backedges. 11950 proven. 1723 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-03-04 01:19:29,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682558296] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:19:29,576 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:19:29,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 69, 69] total 182 [2022-03-04 01:19:29,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441988470] [2022-03-04 01:19:29,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:19:29,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 183 states [2022-03-04 01:19:29,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:19:29,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 183 interpolants. [2022-03-04 01:19:29,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8685, Invalid=24621, Unknown=0, NotChecked=0, Total=33306 [2022-03-04 01:19:29,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:19:29,588 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:19:29,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 183 states, 183 states have (on average 4.726775956284153) internal successors, (865), 182 states have internal predecessors, (865), 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 01:19:29,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2022-03-04 01:19:29,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:19:36,341 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3766 transitions and produced 3050 states. [2022-03-04 01:19:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-03-04 01:19:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2022-03-04 01:19:36,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 01:19:36,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:19:36,556 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 01:19:36,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:19:36,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1363352154, now seen corresponding path program 3 times [2022-03-04 01:19:36,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:19:36,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400764869] [2022-03-04 01:19:36,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:19:36,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:19:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:19:42,125 INFO L134 CoverageAnalysis]: Checked inductivity of 31925 backedges. 13194 proven. 18609 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-03-04 01:19:42,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:19:42,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400764869] [2022-03-04 01:19:42,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400764869] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:19:42,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385902521] [2022-03-04 01:19:42,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 01:19:42,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:19:42,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:19:42,131 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 01:19:42,131 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 01:19:42,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 79 check-sat command(s) [2022-03-04 01:19:42,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:19:42,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-04 01:19:42,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:19:44,123 INFO L134 CoverageAnalysis]: Checked inductivity of 31925 backedges. 14755 proven. 3183 refuted. 0 times theorem prover too weak. 13987 trivial. 0 not checked. [2022-03-04 01:19:44,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:19:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 31925 backedges. 14755 proven. 3183 refuted. 0 times theorem prover too weak. 13987 trivial. 0 not checked. [2022-03-04 01:19:44,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385902521] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:19:44,959 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:19:44,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [154, 15, 15] total 172 [2022-03-04 01:19:44,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364762596] [2022-03-04 01:19:44,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:19:44,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 173 states [2022-03-04 01:19:44,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:19:44,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2022-03-04 01:19:44,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6944, Invalid=22812, Unknown=0, NotChecked=0, Total=29756 [2022-03-04 01:19:44,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:19:44,969 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:19:44,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 173 states, 173 states have (on average 4.08092485549133) internal successors, (706), 172 states have internal predecessors, (706), 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 01:19:44,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2022-03-04 01:19:44,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 197 states. [2022-03-04 01:19:44,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:19:56,418 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7035 transitions and produced 4999 states. [2022-03-04 01:19:56,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-03-04 01:19:56,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2022-03-04 01:19:56,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-03-04 01:19:56,440 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 01:19:56,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:19:56,636 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 01:19:56,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:19:56,636 INFO L85 PathProgramCache]: Analyzing trace with hash -669997996, now seen corresponding path program 4 times [2022-03-04 01:19:56,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:19:56,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653985823] [2022-03-04 01:19:56,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:19:56,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:19:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:20:07,509 INFO L134 CoverageAnalysis]: Checked inductivity of 96855 backedges. 45718 proven. 50864 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-03-04 01:20:07,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:20:07,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653985823] [2022-03-04 01:20:07,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653985823] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:20:07,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023942329] [2022-03-04 01:20:07,510 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 01:20:07,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:20:07,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:20:07,528 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 01:20:07,565 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 01:20:07,934 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 01:20:07,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:20:07,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 2691 conjuncts, 350 conjunts are in the unsatisfiable core [2022-03-04 01:20:07,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:20:22,740 INFO L134 CoverageAnalysis]: Checked inductivity of 96855 backedges. 88159 proven. 8211 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2022-03-04 01:20:22,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:20:29,580 INFO L134 CoverageAnalysis]: Checked inductivity of 96855 backedges. 88159 proven. 8211 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2022-03-04 01:20:29,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023942329] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:20:29,581 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:20:29,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [210, 199, 199] total 529 [2022-03-04 01:20:29,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583988803] [2022-03-04 01:20:29,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:20:29,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 530 states [2022-03-04 01:20:29,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:20:29,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 530 interpolants. [2022-03-04 01:20:29,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83694, Invalid=196676, Unknown=0, NotChecked=0, Total=280370 [2022-03-04 01:20:29,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:20:29,613 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:20:29,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 530 states, 530 states have (on average 4.2075471698113205) internal successors, (2230), 529 states have internal predecessors, (2230), 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 01:20:29,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-03-04 01:20:29,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 198 states. [2022-03-04 01:20:29,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 312 states. [2022-03-04 01:20:29,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:22:52,790 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 10096 transitions and produced 7672 states. [2022-03-04 01:22:52,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-03-04 01:22:52,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2022-03-04 01:22:52,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-03-04 01:22:52,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-03-04 01:22:52,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-04 01:22:52,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:22:52,998 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 01:22:52,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:22:52,998 INFO L85 PathProgramCache]: Analyzing trace with hash 627685006, now seen corresponding path program 5 times [2022-03-04 01:22:52,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:22:52,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855744749] [2022-03-04 01:22:52,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:22:52,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:22:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:23:24,537 INFO L134 CoverageAnalysis]: Checked inductivity of 214342 backedges. 88003 proven. 126066 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-03-04 01:23:24,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:23:24,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855744749] [2022-03-04 01:23:24,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855744749] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:23:24,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129640090] [2022-03-04 01:23:24,538 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 01:23:24,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:23:24,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:23:24,541 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 01:23:24,542 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 01:23:32,150 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 324 check-sat command(s) [2022-03-04 01:23:32,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:23:32,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 4057 conjuncts, 48 conjunts are in the unsatisfiable core [2022-03-04 01:23:32,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:23:37,368 INFO L134 CoverageAnalysis]: Checked inductivity of 214342 backedges. 77196 proven. 33779 refuted. 0 times theorem prover too weak. 103367 trivial. 0 not checked. [2022-03-04 01:23:37,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:23:40,096 INFO L134 CoverageAnalysis]: Checked inductivity of 214342 backedges. 77196 proven. 33779 refuted. 0 times theorem prover too weak. 103367 trivial. 0 not checked. [2022-03-04 01:23:40,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129640090] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:23:40,097 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:23:40,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [413, 25, 25] total 440 [2022-03-04 01:23:40,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563288624] [2022-03-04 01:23:40,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:23:40,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 441 states [2022-03-04 01:23:40,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:23:40,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 441 interpolants. [2022-03-04 01:23:40,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50221, Invalid=143819, Unknown=0, NotChecked=0, Total=194040 [2022-03-04 01:23:40,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:23:40,116 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:23:40,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 441 states, 441 states have (on average 3.6417233560090705) internal successors, (1606), 440 states have internal predecessors, (1606), 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 01:23:40,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-03-04 01:23:40,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 198 states. [2022-03-04 01:23:40,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 312 states. [2022-03-04 01:23:40,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 503 states. [2022-03-04 01:23:40,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:26:17,404 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 15507 transitions and produced 10766 states. [2022-03-04 01:26:17,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-03-04 01:26:17,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2022-03-04 01:26:17,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-03-04 01:26:17,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-03-04 01:26:17,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 783 states. [2022-03-04 01:26:17,439 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 01:26:17,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:26:17,614 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 01:26:17,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:26:17,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1465084782, now seen corresponding path program 6 times [2022-03-04 01:26:17,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:26:17,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185613527] [2022-03-04 01:26:17,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:26:17,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:26:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:27:15,253 INFO L134 CoverageAnalysis]: Checked inductivity of 411576 backedges. 189114 proven. 222029 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-03-04 01:27:15,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:27:15,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185613527] [2022-03-04 01:27:15,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185613527] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:27:15,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661288221] [2022-03-04 01:27:15,254 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 01:27:15,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:27:15,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:27:15,255 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:27:15,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 01:27:50,016 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 471 check-sat command(s) [2022-03-04 01:27:50,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:27:50,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 5360 conjuncts, 68 conjunts are in the unsatisfiable core [2022-03-04 01:27:50,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:27:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 411576 backedges. 166443 proven. 73514 refuted. 0 times theorem prover too weak. 171619 trivial. 0 not checked. [2022-03-04 01:27:57,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:28:00,475 INFO L134 CoverageAnalysis]: Checked inductivity of 411576 backedges. 166443 proven. 73514 refuted. 0 times theorem prover too weak. 171619 trivial. 0 not checked. [2022-03-04 01:28:00,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661288221] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:28:00,476 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:28:00,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [506, 35, 35] total 543 [2022-03-04 01:28:00,477 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471337499] [2022-03-04 01:28:00,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:28:00,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 544 states [2022-03-04 01:28:00,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:28:00,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 544 interpolants. [2022-03-04 01:28:00,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70197, Invalid=225195, Unknown=0, NotChecked=0, Total=295392 [2022-03-04 01:28:00,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:28:00,497 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:28:00,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 544 states, 544 states have (on average 3.9246323529411766) internal successors, (2135), 543 states have internal predecessors, (2135), 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 01:28:00,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-03-04 01:28:00,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 198 states. [2022-03-04 01:28:00,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 312 states. [2022-03-04 01:28:00,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 503 states. [2022-03-04 01:28:00,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 783 states. [2022-03-04 01:28:00,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:32:26,323 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 19908 transitions and produced 14215 states. [2022-03-04 01:32:26,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-03-04 01:32:26,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2022-03-04 01:32:26,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-03-04 01:32:26,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-03-04 01:32:26,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 783 states. [2022-03-04 01:32:26,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 961 states. [2022-03-04 01:32:26,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 01:32:26,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:32:26,536 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 01:32:26,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:32:26,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1186789198, now seen corresponding path program 7 times [2022-03-04 01:32:26,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:32:26,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639424377] [2022-03-04 01:32:26,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:32:26,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:32:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-04 01:33:28,137 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-04 01:33:28,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-04 01:33:28,137 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 2835 with TraceHistMax 674,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 413 known predicates. [2022-03-04 01:33:28,138 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-04 01:33:28,138 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-04 01:33:28,138 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-04 01:33:28,139 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-04 01:33:28,139 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 01:33:28,139 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 01:33:28,149 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-03-04 01:33:28,151 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 01:33:28,151 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 01:33:28,152 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 01:33:28 BasicIcfg [2022-03-04 01:33:28,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 01:33:28,153 INFO L158 Benchmark]: Toolchain (without parser) took 853061.92ms. Allocated memory was 206.6MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 172.5MB in the beginning and 311.3MB in the end (delta: -138.9MB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2022-03-04 01:33:28,153 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 206.6MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 01:33:28,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.95ms. Allocated memory is still 206.6MB. Free memory was 172.5MB in the beginning and 170.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 01:33:28,153 INFO L158 Benchmark]: Boogie Preprocessor took 15.30ms. Allocated memory is still 206.6MB. Free memory was 170.8MB in the beginning and 169.9MB in the end (delta: 941.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 01:33:28,154 INFO L158 Benchmark]: RCFGBuilder took 243.36ms. Allocated memory is still 206.6MB. Free memory was 169.9MB in the beginning and 159.6MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-04 01:33:28,154 INFO L158 Benchmark]: TraceAbstraction took 852770.75ms. Allocated memory was 206.6MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 159.1MB in the beginning and 311.3MB in the end (delta: -152.2MB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2022-03-04 01:33:28,175 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 0.12ms. Allocated memory is still 206.6MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.95ms. Allocated memory is still 206.6MB. Free memory was 172.5MB in the beginning and 170.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.30ms. Allocated memory is still 206.6MB. Free memory was 170.8MB in the beginning and 169.9MB in the end (delta: 941.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 243.36ms. Allocated memory is still 206.6MB. Free memory was 169.9MB in the beginning and 159.6MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 852770.75ms. Allocated memory was 206.6MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 159.1MB in the beginning and 311.3MB in the end (delta: -152.2MB). Peak memory consumption was 2.1GB. 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: 83]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 2835 with TraceHistMax 674,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 413 known predicates. - TimeoutResultAtElement [Line: 74]: 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 2835 with TraceHistMax 674,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 413 known predicates. - TimeoutResultAtElement [Line: 76]: 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 2835 with TraceHistMax 674,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 413 known predicates. - TimeoutResultAtElement [Line: 74]: 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 2835 with TraceHistMax 674,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 413 known predicates. - TimeoutResultAtElement [Line: 75]: 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 2835 with TraceHistMax 674,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 413 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 852.7s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 587.7s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2869, 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: 0.4s SsaConstructionTime, 51.0s SatisfiabilityAnalysisTime, 150.0s InterpolantComputationTime, 12162 NumberOfCodeBlocks, 11998 NumberOfCodeBlocksAsserted, 884 NumberOfCheckSat, 18225 ConstructedInterpolants, 0 QuantifiedInterpolants, 116058 SizeOfPredicates, 0 NumberOfNonLiveVariables, 15097 ConjunctsInSsa, 684 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 1647044/2313123 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