/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.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-4b0ab11 [2022-03-04 06:37:39,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 06:37:39,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 06:37:40,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 06:37:40,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 06:37:40,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 06:37:40,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 06:37:40,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 06:37:40,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 06:37:40,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 06:37:40,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 06:37:40,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 06:37:40,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 06:37:40,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 06:37:40,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 06:37:40,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 06:37:40,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 06:37:40,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 06:37:40,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 06:37:40,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 06:37:40,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 06:37:40,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 06:37:40,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 06:37:40,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 06:37:40,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-04 06:37:40,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-04 06:37:40,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-04 06:37:40,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-04 06:37:40,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-04 06:37:40,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-04 06:37:40,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 06:37:40,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 06:37:40,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 06:37:40,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 06:37:40,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 06:37:40,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 06:37:40,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 06:37:40,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 06:37:40,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 06:37:40,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 06:37:40,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 06:37:40,070 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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-04 06:37:40,088 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 06:37:40,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 06:37:40,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 06:37:40,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 06:37:40,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 06:37:40,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 06:37:40,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 06:37:40,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 06:37:40,090 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 06:37:40,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 06:37:40,091 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 06:37:40,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 06:37:40,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 06:37:40,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 06:37:40,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 06:37:40,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 06:37:40,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 06:37:40,091 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 06:37:40,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 06:37:40,092 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 06:37:40,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 06:37:40,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 06:37:40,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 06:37:40,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 06:37:40,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 06:37:40,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:37:40,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 06:37:40,093 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 06:37:40,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 06:37:40,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 06:37:40,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 06:37:40,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 06:37:40,093 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 06:37:40,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 06:37:40,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 06:37:40,093 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 06:37:40,093 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 06:37:40,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 06:37:40,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 06:37:40,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 06:37:40,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 06:37:40,288 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 06:37:40,289 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 06:37:40,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl [2022-03-04 06:37:40,290 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' [2022-03-04 06:37:40,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 06:37:40,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 06:37:40,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 06:37:40,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 06:37:40,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 06:37:40,317 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 04.03 06:37:40" (1/1) ... [2022-03-04 06:37:40,321 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 04.03 06:37:40" (1/1) ... [2022-03-04 06:37:40,326 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 06:37:40,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 06:37:40,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 06:37:40,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 06:37:40,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 06:37:40,338 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 04.03 06:37:40" (1/1) ... [2022-03-04 06:37:40,338 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 04.03 06:37:40" (1/1) ... [2022-03-04 06:37:40,338 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 04.03 06:37:40" (1/1) ... [2022-03-04 06:37:40,339 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 04.03 06:37:40" (1/1) ... [2022-03-04 06:37:40,341 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 04.03 06:37:40" (1/1) ... [2022-03-04 06:37:40,343 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 04.03 06:37:40" (1/1) ... [2022-03-04 06:37:40,343 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 04.03 06:37:40" (1/1) ... [2022-03-04 06:37:40,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 06:37:40,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 06:37:40,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 06:37:40,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 06:37:40,346 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 04.03 06:37:40" (1/1) ... [2022-03-04 06:37:40,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:37:40,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:37:40,374 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 06:37:40,379 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 06:37:40,407 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 06:37:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 06:37:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 06:37:40,407 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 06:37:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 06:37:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 06:37:40,407 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 06:37:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 06:37:40,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 06:37:40,408 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 06:37:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 06:37:40,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 06:37:40,408 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-04 06:37:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-04 06:37:40,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-04 06:37:40,413 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 06:37:40,458 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 06:37:40,459 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 06:37:40,546 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 06:37:40,559 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 06:37:40,559 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 06:37:40,561 INFO L202 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:37:40 BoogieIcfgContainer [2022-03-04 06:37:40,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 06:37:40,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 06:37:40,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 06:37:40,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 06:37:40,564 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 04.03 06:37:40" (1/2) ... [2022-03-04 06:37:40,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6560a386 and model type counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:37:40, skipping insertion in model container [2022-03-04 06:37:40,565 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 04.03 06:37:40" (2/2) ... [2022-03-04 06:37:40,566 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-add-4-semi-Q67.wvr.bpl [2022-03-04 06:37:40,569 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 06:37:40,569 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 06:37:40,569 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 06:37:40,570 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 06:37:40,620 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-04 06:37:40,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 06:37:40,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:37:40,671 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 06:37:40,686 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 06:37:40,701 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 06:37:40,706 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=true [2022-03-04 06:37:40,706 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-04 06:37:40,905 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1845 transitions and produced 1634 states. [2022-03-04 06:37:40,910 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 06:37:40,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:37:40,914 INFO L85 PathProgramCache]: Analyzing trace with hash 604266893, now seen corresponding path program 1 times [2022-03-04 06:37:40,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:37:40,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318142277] [2022-03-04 06:37:40,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:37:40,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:37:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:37:41,953 INFO L134 CoverageAnalysis]: Checked inductivity of 8685 backedges. 4800 proven. 3080 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2022-03-04 06:37:41,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:37:41,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318142277] [2022-03-04 06:37:41,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318142277] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:37:41,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407276311] [2022-03-04 06:37:41,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:37:41,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:37:41,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:37:41,957 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 06:37:41,987 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 06:37:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:37:42,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 87 conjunts are in the unsatisfiable core [2022-03-04 06:37:42,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:37:45,509 INFO L134 CoverageAnalysis]: Checked inductivity of 8685 backedges. 8454 proven. 42 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-03-04 06:37:45,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:37:48,200 INFO L134 CoverageAnalysis]: Checked inductivity of 8685 backedges. 2587 proven. 5929 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-03-04 06:37:48,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407276311] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:37:48,201 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:37:48,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 67, 87] total 171 [2022-03-04 06:37:48,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954815242] [2022-03-04 06:37:48,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:37:48,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 172 states [2022-03-04 06:37:48,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:37:48,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2022-03-04 06:37:48,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8321, Invalid=21091, Unknown=0, NotChecked=0, Total=29412 [2022-03-04 06:37:48,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:37:48,253 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:37:48,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 172 states, 172 states have (on average 3.4011627906976742) internal successors, (585), 171 states have internal predecessors, (585), 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 06:37:48,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:38:01,433 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3158 transitions and produced 2445 states. [2022-03-04 06:38:01,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-04 06:38:01,452 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 06:38:01,647 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 06:38:01,648 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 06:38:01,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:38:01,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1712204743, now seen corresponding path program 2 times [2022-03-04 06:38:01,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:38:01,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718763060] [2022-03-04 06:38:01,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:38:01,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:38:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:38:04,934 INFO L134 CoverageAnalysis]: Checked inductivity of 18932 backedges. 3844 proven. 5726 refuted. 0 times theorem prover too weak. 9362 trivial. 0 not checked. [2022-03-04 06:38:04,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:38:04,935 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718763060] [2022-03-04 06:38:04,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718763060] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:38:04,935 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926328527] [2022-03-04 06:38:04,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 06:38:04,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:38:04,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:38:04,936 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 06:38:04,938 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 06:38:05,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 06:38:05,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:38:05,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 132 conjunts are in the unsatisfiable core [2022-03-04 06:38:05,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:38:12,027 INFO L134 CoverageAnalysis]: Checked inductivity of 18932 backedges. 13504 proven. 4096 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-03-04 06:38:12,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:38:16,648 INFO L134 CoverageAnalysis]: Checked inductivity of 18932 backedges. 13504 proven. 4096 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-03-04 06:38:16,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926328527] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:38:16,649 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:38:16,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 132, 132] total 277 [2022-03-04 06:38:16,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152941432] [2022-03-04 06:38:16,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:38:16,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 278 states [2022-03-04 06:38:16,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:38:16,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 278 interpolants. [2022-03-04 06:38:16,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15223, Invalid=61783, Unknown=0, NotChecked=0, Total=77006 [2022-03-04 06:38:16,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:38:16,690 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:38:16,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 278 states, 278 states have (on average 2.643884892086331) internal successors, (735), 277 states have internal predecessors, (735), 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 06:38:16,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-04 06:38:16,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:38:34,901 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4418 transitions and produced 3551 states. [2022-03-04 06:38:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2022-03-04 06:38:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-03-04 06:38:34,920 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 06:38:35,120 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 06:38:35,120 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 06:38:35,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:38:35,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1321174771, now seen corresponding path program 3 times [2022-03-04 06:38:35,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:38:35,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388403548] [2022-03-04 06:38:35,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:38:35,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:38:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:38:38,490 INFO L134 CoverageAnalysis]: Checked inductivity of 41137 backedges. 21524 proven. 9328 refuted. 0 times theorem prover too weak. 10285 trivial. 0 not checked. [2022-03-04 06:38:38,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:38:38,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388403548] [2022-03-04 06:38:38,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388403548] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:38:38,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984493507] [2022-03-04 06:38:38,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 06:38:38,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:38:38,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:38:38,492 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 06:38:38,507 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 06:38:39,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 84 check-sat command(s) [2022-03-04 06:38:39,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:38:39,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 2176 conjuncts, 146 conjunts are in the unsatisfiable core [2022-03-04 06:38:39,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:38:47,090 INFO L134 CoverageAnalysis]: Checked inductivity of 41137 backedges. 16581 proven. 19503 refuted. 0 times theorem prover too weak. 5053 trivial. 0 not checked. [2022-03-04 06:38:47,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:38:55,372 INFO L134 CoverageAnalysis]: Checked inductivity of 41137 backedges. 13018 proven. 23098 refuted. 0 times theorem prover too weak. 5021 trivial. 0 not checked. [2022-03-04 06:38:55,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984493507] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:38:55,372 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:38:55,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 138, 144] total 314 [2022-03-04 06:38:55,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945310406] [2022-03-04 06:38:55,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:38:55,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 315 states [2022-03-04 06:38:55,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:38:55,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 315 interpolants. [2022-03-04 06:38:55,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16427, Invalid=82483, Unknown=0, NotChecked=0, Total=98910 [2022-03-04 06:38:55,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:38:55,383 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:38:55,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 315 states, 315 states have (on average 4.1873015873015875) internal successors, (1319), 314 states have internal predecessors, (1319), 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 06:38:55,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 238 states. [2022-03-04 06:38:55,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 351 states. [2022-03-04 06:38:55,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:39:41,081 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4701 transitions and produced 3708 states. [2022-03-04 06:39:41,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2022-03-04 06:39:41,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-03-04 06:39:41,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 459 states. [2022-03-04 06:39:41,104 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 06:39:41,301 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 06:39:41,302 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 06:39:41,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:39:41,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2026893419, now seen corresponding path program 4 times [2022-03-04 06:39:41,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:39:41,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447481653] [2022-03-04 06:39:41,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:39:41,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:39:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:39:44,601 INFO L134 CoverageAnalysis]: Checked inductivity of 46620 backedges. 22462 proven. 12347 refuted. 0 times theorem prover too weak. 11811 trivial. 0 not checked. [2022-03-04 06:39:44,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:39:44,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447481653] [2022-03-04 06:39:44,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447481653] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:39:44,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991424908] [2022-03-04 06:39:44,601 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 06:39:44,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:39:44,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:39:44,603 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 06:39:44,605 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 06:39:44,921 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 06:39:44,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:39:44,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 179 conjunts are in the unsatisfiable core [2022-03-04 06:39:44,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:39:54,282 INFO L134 CoverageAnalysis]: Checked inductivity of 46620 backedges. 22833 proven. 12153 refuted. 0 times theorem prover too weak. 11634 trivial. 0 not checked. [2022-03-04 06:39:54,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:40:07,078 INFO L134 CoverageAnalysis]: Checked inductivity of 46620 backedges. 20054 proven. 14938 refuted. 0 times theorem prover too weak. 11628 trivial. 0 not checked. [2022-03-04 06:40:07,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991424908] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:40:07,078 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:40:07,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 173, 179] total 405 [2022-03-04 06:40:07,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544325779] [2022-03-04 06:40:07,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:40:07,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 406 states [2022-03-04 06:40:07,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:40:07,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 406 interpolants. [2022-03-04 06:40:07,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29372, Invalid=135058, Unknown=0, NotChecked=0, Total=164430 [2022-03-04 06:40:07,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:40:07,092 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:40:07,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 406 states, 406 states have (on average 3.167487684729064) internal successors, (1286), 405 states have internal predecessors, (1286), 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 06:40:07,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 238 states. [2022-03-04 06:40:07,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 351 states. [2022-03-04 06:40:07,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 459 states. [2022-03-04 06:40:07,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:41:00,192 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5560 transitions and produced 4263 states. [2022-03-04 06:41:00,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2022-03-04 06:41:00,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-03-04 06:41:00,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 459 states. [2022-03-04 06:41:00,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 373 states. [2022-03-04 06:41:00,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 06:41:00,407 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 06:41:00,408 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 06:41:00,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:41:00,408 INFO L85 PathProgramCache]: Analyzing trace with hash 212146637, now seen corresponding path program 5 times [2022-03-04 06:41:00,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:41:00,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41492838] [2022-03-04 06:41:00,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:41:00,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:41:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:41:08,361 INFO L134 CoverageAnalysis]: Checked inductivity of 66515 backedges. 9409 proven. 36184 refuted. 0 times theorem prover too weak. 20922 trivial. 0 not checked. [2022-03-04 06:41:08,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:41:08,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41492838] [2022-03-04 06:41:08,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41492838] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:41:08,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813254958] [2022-03-04 06:41:08,361 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 06:41:08,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:41:08,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:41:08,362 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 06:41:08,363 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 06:41:09,114 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 122 check-sat command(s) [2022-03-04 06:41:09,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:41:09,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 2759 conjuncts, 484 conjunts are in the unsatisfiable core [2022-03-04 06:41:09,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:41:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 66515 backedges. 37382 proven. 9801 refuted. 0 times theorem prover too weak. 19332 trivial. 0 not checked. [2022-03-04 06:41:19,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:41:26,726 INFO L134 CoverageAnalysis]: Checked inductivity of 66515 backedges. 37382 proven. 9801 refuted. 0 times theorem prover too weak. 19332 trivial. 0 not checked. [2022-03-04 06:41:26,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813254958] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:41:26,726 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:41:26,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [183, 170, 170] total 420 [2022-03-04 06:41:26,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468649452] [2022-03-04 06:41:26,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:41:26,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 420 states [2022-03-04 06:41:26,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:41:26,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 420 interpolants. [2022-03-04 06:41:26,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36642, Invalid=139338, Unknown=0, NotChecked=0, Total=175980 [2022-03-04 06:41:26,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:41:26,739 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:41:26,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 420 states, 420 states have (on average 3.414285714285714) internal successors, (1434), 420 states have internal predecessors, (1434), 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 06:41:26,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 238 states. [2022-03-04 06:41:26,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 351 states. [2022-03-04 06:41:26,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 459 states. [2022-03-04 06:41:26,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 373 states. [2022-03-04 06:41:26,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:42:06,531 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7328 transitions and produced 5660 states. [2022-03-04 06:42:06,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2022-03-04 06:42:06,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-03-04 06:42:06,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 459 states. [2022-03-04 06:42:06,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 373 states. [2022-03-04 06:42:06,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2022-03-04 06:42:06,561 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 06:42:06,761 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 06:42:06,761 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 06:42:06,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:42:06,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1682175205, now seen corresponding path program 6 times [2022-03-04 06:42:06,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:42:06,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73554040] [2022-03-04 06:42:06,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:42:06,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:42:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:42:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 107572 backedges. 48672 proven. 38503 refuted. 0 times theorem prover too weak. 20397 trivial. 0 not checked. [2022-03-04 06:42:17,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:42:17,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73554040] [2022-03-04 06:42:17,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73554040] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:42:17,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855853106] [2022-03-04 06:42:17,770 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 06:42:17,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:42:17,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:42:17,771 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 06:42:17,772 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 06:42:19,219 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 190 check-sat command(s) [2022-03-04 06:42:19,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:42:19,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 3500 conjuncts, 303 conjunts are in the unsatisfiable core [2022-03-04 06:42:19,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:42:45,657 INFO L134 CoverageAnalysis]: Checked inductivity of 107572 backedges. 60484 proven. 28724 refuted. 0 times theorem prover too weak. 18364 trivial. 0 not checked. [2022-03-04 06:42:45,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:43:26,618 INFO L134 CoverageAnalysis]: Checked inductivity of 107572 backedges. 55095 proven. 34119 refuted. 0 times theorem prover too weak. 18358 trivial. 0 not checked. [2022-03-04 06:43:26,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855853106] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:43:26,619 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:43:26,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [187, 297, 303] total 753 [2022-03-04 06:43:26,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495723387] [2022-03-04 06:43:26,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:43:26,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 754 states [2022-03-04 06:43:26,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:43:26,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 754 interpolants. [2022-03-04 06:43:26,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112067, Invalid=455695, Unknown=0, NotChecked=0, Total=567762 [2022-03-04 06:43:26,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:43:26,657 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:43:26,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 754 states, 754 states have (on average 3.114058355437666) internal successors, (2348), 753 states have internal predecessors, (2348), 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 06:43:26,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 238 states. [2022-03-04 06:43:26,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 351 states. [2022-03-04 06:43:26,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 459 states. [2022-03-04 06:43:26,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 373 states. [2022-03-04 06:43:26,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2022-03-04 06:43:26,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:50:30,530 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9266 transitions and produced 6806 states. [2022-03-04 06:50:30,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2022-03-04 06:50:30,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-03-04 06:50:30,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 459 states. [2022-03-04 06:50:30,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 373 states. [2022-03-04 06:50:30,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2022-03-04 06:50:30,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 671 states. [2022-03-04 06:50:30,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-04 06:50:30,747 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 06:50:30,747 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 06:50:30,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:50:30,748 INFO L85 PathProgramCache]: Analyzing trace with hash 857813179, now seen corresponding path program 7 times [2022-03-04 06:50:30,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:50:30,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055794524] [2022-03-04 06:50:30,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:50:30,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:50:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:50:52,119 INFO L134 CoverageAnalysis]: Checked inductivity of 174838 backedges. 33856 proven. 69426 refuted. 0 times theorem prover too weak. 71556 trivial. 0 not checked. [2022-03-04 06:50:52,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:50:52,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055794524] [2022-03-04 06:50:52,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055794524] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:50:52,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891205113] [2022-03-04 06:50:52,120 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 06:50:52,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:50:52,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:50:52,121 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:50:52,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 06:50:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:50:52,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 4391 conjuncts, 376 conjunts are in the unsatisfiable core [2022-03-04 06:50:52,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-03-04 06:51:54,059 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-04 06:51:54,067 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 06:51:54,067 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 06:51:54,067 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 06:51:54,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-04 06:51:54,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-04 06:51:54,260 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1590 with TraceHistMax 304,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 656 known predicates. [2022-03-04 06:51:54,261 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-04 06:51:54,261 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-04 06:51:54,261 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-04 06:51:54,261 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-04 06:51:54,265 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-03-04 06:51:54,267 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 06:51:54,267 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 06:51:54,268 INFO L202 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:51:54 BasicIcfg [2022-03-04 06:51:54,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 06:51:54,269 INFO L158 Benchmark]: Toolchain (without parser) took 853960.87ms. Allocated memory was 245.4MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 209.8MB in the beginning and 438.3MB in the end (delta: -228.5MB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-03-04 06:51:54,269 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 245.4MB. Free memory is still 210.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 06:51:54,269 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.10ms. Allocated memory is still 245.4MB. Free memory was 209.8MB in the beginning and 208.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 06:51:54,270 INFO L158 Benchmark]: Boogie Preprocessor took 11.81ms. Allocated memory is still 245.4MB. Free memory was 208.2MB in the beginning and 207.2MB in the end (delta: 991.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 06:51:54,270 INFO L158 Benchmark]: RCFGBuilder took 216.41ms. Allocated memory is still 245.4MB. Free memory was 207.2MB in the beginning and 197.3MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 06:51:54,270 INFO L158 Benchmark]: TraceAbstraction took 853706.44ms. Allocated memory was 245.4MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 196.8MB in the beginning and 438.3MB in the end (delta: -241.5MB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-03-04 06:51:54,271 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 0.11ms. Allocated memory is still 245.4MB. Free memory is still 210.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.10ms. Allocated memory is still 245.4MB. Free memory was 209.8MB in the beginning and 208.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.81ms. Allocated memory is still 245.4MB. Free memory was 208.2MB in the beginning and 207.2MB in the end (delta: 991.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 216.41ms. Allocated memory is still 245.4MB. Free memory was 207.2MB in the beginning and 197.3MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 853706.44ms. Allocated memory was 245.4MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 196.8MB in the beginning and 438.3MB in the end (delta: -241.5MB). Peak memory consumption was 1.9GB. 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: 80]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1590 with TraceHistMax 304,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 656 known predicates. - TimeoutResultAtElement [Line: 71]: 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 1590 with TraceHistMax 304,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 656 known predicates. - TimeoutResultAtElement [Line: 71]: 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 1590 with TraceHistMax 304,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 656 known predicates. - TimeoutResultAtElement [Line: 73]: 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 1590 with TraceHistMax 304,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 656 known predicates. - TimeoutResultAtElement [Line: 72]: 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 1590 with TraceHistMax 304,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 656 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 52 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 853.6s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 594.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2442, 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, 9.5s SatisfiabilityAnalysisTime, 164.2s InterpolantComputationTime, 9376 NumberOfCodeBlocks, 9370 NumberOfCodeBlocksAsserted, 406 NumberOfCheckSat, 14046 ConstructedInterpolants, 0 QuantifiedInterpolants, 81424 SizeOfPredicates, 23 NumberOfNonLiveVariables, 13000 ConjunctsInSsa, 1331 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 596915/868383 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