/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 12:25:03,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 12:25:03,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 12:25:04,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 12:25:04,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 12:25:04,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 12:25:04,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 12:25:04,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 12:25:04,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 12:25:04,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 12:25:04,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 12:25:04,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 12:25:04,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 12:25:04,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 12:25:04,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 12:25:04,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 12:25:04,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 12:25:04,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 12:25:04,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 12:25:04,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 12:25:04,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 12:25:04,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 12:25:04,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 12:25:04,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 12:25:04,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 12:25:04,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 12:25:04,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 12:25:04,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 12:25:04,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 12:25:04,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 12:25:04,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 12:25:04,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 12:25:04,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 12:25:04,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 12:25:04,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 12:25:04,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 12:25:04,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 12:25:04,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 12:25:04,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 12:25:04,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 12:25:04,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 12:25:04,070 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-02-20 12:25:04,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 12:25:04,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 12:25:04,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 12:25:04,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 12:25:04,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 12:25:04,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 12:25:04,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 12:25:04,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 12:25:04,089 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 12:25:04,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 12:25:04,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 12:25:04,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 12:25:04,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 12:25:04,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 12:25:04,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 12:25:04,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 12:25:04,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 12:25:04,090 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 12:25:04,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 12:25:04,090 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 12:25:04,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 12:25:04,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 12:25:04,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 12:25:04,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 12:25:04,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 12:25:04,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 12:25:04,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 12:25:04,092 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 12:25:04,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 12:25:04,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 12:25:04,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 12:25:04,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 12:25:04,092 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 12:25:04,092 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 12:25:04,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 12:25:04,092 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-20 12:25:04,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 12:25:04,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 12:25:04,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 12:25:04,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 12:25:04,297 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 12:25:04,298 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 12:25:04,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl [2022-02-20 12:25:04,299 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl' [2022-02-20 12:25:04,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 12:25:04,321 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 12:25:04,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 12:25:04,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 12:25:04,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 12:25:04,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:25:04" (1/1) ... [2022-02-20 12:25:04,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:25:04" (1/1) ... [2022-02-20 12:25:04,340 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 12:25:04,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 12:25:04,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 12:25:04,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 12:25:04,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 12:25:04,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:25:04" (1/1) ... [2022-02-20 12:25:04,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:25:04" (1/1) ... [2022-02-20 12:25:04,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:25:04" (1/1) ... [2022-02-20 12:25:04,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:25:04" (1/1) ... [2022-02-20 12:25:04,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:25:04" (1/1) ... [2022-02-20 12:25:04,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:25:04" (1/1) ... [2022-02-20 12:25:04,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:25:04" (1/1) ... [2022-02-20 12:25:04,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 12:25:04,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 12:25:04,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 12:25:04,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 12:25:04,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:25:04" (1/1) ... [2022-02-20 12:25:04,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 12:25:04,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:25:04,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 12:25:04,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 12:25:04,431 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 12:25:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 12:25:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 12:25:04,432 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 12:25:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 12:25:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 12:25:04,432 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 12:25:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 12:25:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 12:25:04,433 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-20 12:25:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-20 12:25:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-20 12:25:04,434 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-20 12:25:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-20 12:25:04,434 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-20 12:25:04,436 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 12:25:04,479 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 12:25:04,480 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 12:25:04,566 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 12:25:04,579 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 12:25:04,579 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 12:25:04,581 INFO L202 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:25:04 BoogieIcfgContainer [2022-02-20 12:25:04,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 12:25:04,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 12:25:04,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 12:25:04,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 12:25:04,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:25:04" (1/2) ... [2022-02-20 12:25:04,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c807bd and model type counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 12:25:04, skipping insertion in model container [2022-02-20 12:25:04,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:25:04" (2/2) ... [2022-02-20 12:25:04,586 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-add-4-semi-Q67.wvr.bpl [2022-02-20 12:25:04,590 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 12:25:04,590 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 12:25:04,590 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 12:25:04,590 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 12:25:04,619 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-20 12:25:04,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 12:25:04,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:25:04,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-20 12:25:04,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-20 12:25:04,688 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 12:25:04,692 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 12:25:04,692 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-20 12:25:07,456 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2554 transitions and produced 2353 states. [2022-02-20 12:25:07,458 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 12:25:07,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 12:25:07,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1964163869, now seen corresponding path program 1 times [2022-02-20 12:25:07,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 12:25:07,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055500422] [2022-02-20 12:25:07,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:25:07,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 12:25:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:25:16,159 INFO L134 CoverageAnalysis]: Checked inductivity of 20095 backedges. 17870 proven. 2109 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-02-20 12:25:16,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 12:25:16,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055500422] [2022-02-20 12:25:16,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055500422] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 12:25:16,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495255438] [2022-02-20 12:25:16,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:25:16,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:25:16,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:25:16,162 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 12:25:16,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 12:25:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:25:16,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 171 conjunts are in the unsatisfiable core [2022-02-20 12:25:16,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 12:25:28,699 INFO L134 CoverageAnalysis]: Checked inductivity of 20095 backedges. 17057 proven. 1282 refuted. 0 times theorem prover too weak. 1756 trivial. 0 not checked. [2022-02-20 12:25:28,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 12:25:46,995 INFO L134 CoverageAnalysis]: Checked inductivity of 20095 backedges. 1047 proven. 17344 refuted. 0 times theorem prover too weak. 1704 trivial. 0 not checked. [2022-02-20 12:25:46,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495255438] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 12:25:46,996 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 12:25:46,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [140, 119, 171] total 428 [2022-02-20 12:25:46,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321427102] [2022-02-20 12:25:46,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 12:25:47,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 429 states [2022-02-20 12:25:47,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 12:25:47,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 429 interpolants. [2022-02-20 12:25:47,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28844, Invalid=154768, Unknown=0, NotChecked=0, Total=183612 [2022-02-20 12:25:47,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:25:47,055 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 12:25:47,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 429 states, 429 states have (on average 2.4242424242424243) internal successors, (1040), 428 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 12:25:47,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:27:20,442 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4718 transitions and produced 4323 states. [2022-02-20 12:27:20,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 491 states. [2022-02-20 12:27:20,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-20 12:27:20,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-20 12:27:20,644 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 12:27:20,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 12:27:20,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1434161697, now seen corresponding path program 2 times [2022-02-20 12:27:20,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 12:27:20,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749056838] [2022-02-20 12:27:20,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:27:20,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 12:27:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:27:24,762 INFO L134 CoverageAnalysis]: Checked inductivity of 64749 backedges. 36108 proven. 10201 refuted. 0 times theorem prover too weak. 18440 trivial. 0 not checked. [2022-02-20 12:27:24,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 12:27:24,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749056838] [2022-02-20 12:27:24,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749056838] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 12:27:24,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884181868] [2022-02-20 12:27:24,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 12:27:24,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:27:24,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:27:24,764 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 12:27:24,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 12:27:25,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 12:27:25,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 12:27:25,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 2239 conjuncts, 204 conjunts are in the unsatisfiable core [2022-02-20 12:27:25,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 12:27:26,157 INFO L134 CoverageAnalysis]: Checked inductivity of 64749 backedges. 36108 proven. 10201 refuted. 0 times theorem prover too weak. 18440 trivial. 0 not checked. [2022-02-20 12:27:26,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 12:27:27,330 INFO L134 CoverageAnalysis]: Checked inductivity of 64749 backedges. 36108 proven. 10201 refuted. 0 times theorem prover too weak. 18440 trivial. 0 not checked. [2022-02-20 12:27:27,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884181868] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 12:27:27,331 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 12:27:27,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 104, 104] total 106 [2022-02-20 12:27:27,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61614904] [2022-02-20 12:27:27,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 12:27:27,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-02-20 12:27:27,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 12:27:27,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-02-20 12:27:27,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5463, Invalid=5667, Unknown=0, NotChecked=0, Total=11130 [2022-02-20 12:27:27,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:27:27,341 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 12:27:27,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 4.169811320754717) internal successors, (442), 106 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 12:27:27,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 491 states. [2022-02-20 12:27:27,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:27:32,269 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4817 transitions and produced 4415 states. [2022-02-20 12:27:32,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 494 states. [2022-02-20 12:27:32,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-20 12:27:32,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-20 12:27:32,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:27:32,470 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 12:27:32,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 12:27:32,471 INFO L85 PathProgramCache]: Analyzing trace with hash -61280285, now seen corresponding path program 3 times [2022-02-20 12:27:32,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 12:27:32,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883097362] [2022-02-20 12:27:32,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:27:32,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 12:27:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:27:36,390 INFO L134 CoverageAnalysis]: Checked inductivity of 66454 backedges. 38179 proven. 11453 refuted. 0 times theorem prover too weak. 16822 trivial. 0 not checked. [2022-02-20 12:27:36,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 12:27:36,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883097362] [2022-02-20 12:27:36,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883097362] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 12:27:36,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886581955] [2022-02-20 12:27:36,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 12:27:36,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:27:36,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:27:36,392 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 12:27:36,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 12:27:37,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 195 check-sat command(s) [2022-02-20 12:27:37,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 12:27:37,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 118 conjunts are in the unsatisfiable core [2022-02-20 12:27:37,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 12:27:47,562 INFO L134 CoverageAnalysis]: Checked inductivity of 66454 backedges. 11608 proven. 34529 refuted. 0 times theorem prover too weak. 20317 trivial. 0 not checked. [2022-02-20 12:27:47,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 12:27:58,983 INFO L134 CoverageAnalysis]: Checked inductivity of 66454 backedges. 12084 proven. 34053 refuted. 0 times theorem prover too weak. 20317 trivial. 0 not checked. [2022-02-20 12:27:58,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886581955] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 12:27:58,983 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 12:27:58,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [110, 118, 118] total 344 [2022-02-20 12:27:58,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863392833] [2022-02-20 12:27:58,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 12:27:58,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 345 states [2022-02-20 12:27:58,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 12:27:59,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 345 interpolants. [2022-02-20 12:27:59,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30659, Invalid=88021, Unknown=0, NotChecked=0, Total=118680 [2022-02-20 12:27:59,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:27:59,087 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 12:27:59,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 345 states, 345 states have (on average 2.9101449275362317) internal successors, (1004), 344 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 12:27:59,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 494 states. [2022-02-20 12:27:59,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-02-20 12:27:59,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:30:16,298 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 44057 transitions and produced 40625 states. [2022-02-20 12:30:16,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 494 states. [2022-02-20 12:30:16,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-20 12:30:16,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 344 states. [2022-02-20 12:30:16,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-20 12:30:16,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:30:16,519 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 12:30:16,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 12:30:16,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1778320383, now seen corresponding path program 4 times [2022-02-20 12:30:16,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 12:30:16,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021546378] [2022-02-20 12:30:16,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:30:16,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 12:30:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:30:38,079 INFO L134 CoverageAnalysis]: Checked inductivity of 10530274 backedges. 725809 proven. 12548 refuted. 0 times theorem prover too weak. 9791917 trivial. 0 not checked. [2022-02-20 12:30:38,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 12:30:38,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021546378] [2022-02-20 12:30:38,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021546378] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 12:30:38,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285647638] [2022-02-20 12:30:38,080 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 12:30:38,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:30:38,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:30:38,082 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 12:30:38,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 12:30:41,610 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 12:30:41,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 12:30:41,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 23720 conjuncts, 228 conjunts are in the unsatisfiable core [2022-02-20 12:30:41,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 12:31:10,539 INFO L134 CoverageAnalysis]: Checked inductivity of 10530274 backedges. 702862 proven. 12765 refuted. 0 times theorem prover too weak. 9814647 trivial. 0 not checked. [2022-02-20 12:31:10,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 12:31:33,680 INFO L134 CoverageAnalysis]: Checked inductivity of 10530274 backedges. 703085 proven. 12544 refuted. 0 times theorem prover too weak. 9814645 trivial. 0 not checked. [2022-02-20 12:31:33,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285647638] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 12:31:33,681 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 12:31:33,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 226, 228] total 454 [2022-02-20 12:31:33,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058273843] [2022-02-20 12:31:33,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 12:31:33,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 455 states [2022-02-20 12:31:33,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 12:31:33,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 455 interpolants. [2022-02-20 12:31:33,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44986, Invalid=161584, Unknown=0, NotChecked=0, Total=206570 [2022-02-20 12:31:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:31:33,709 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 12:31:33,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 455 states, 455 states have (on average 2.573626373626374) internal successors, (1171), 454 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 12:31:33,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 494 states. [2022-02-20 12:31:33,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-02-20 12:31:33,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 344 states. [2022-02-20 12:31:33,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.