/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-29 07:32:41,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-29 07:32:41,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-29 07:32:41,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-29 07:32:41,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-29 07:32:41,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-29 07:32:41,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-29 07:32:41,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-29 07:32:41,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-29 07:32:41,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-29 07:32:41,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-29 07:32:41,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-29 07:32:41,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-29 07:32:41,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-29 07:32:41,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-29 07:32:41,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-29 07:32:41,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-29 07:32:41,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-29 07:32:41,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-29 07:32:41,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-29 07:32:41,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-29 07:32:41,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-29 07:32:41,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-29 07:32:41,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-29 07:32:41,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-29 07:32:41,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-29 07:32:41,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-29 07:32:41,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-29 07:32:41,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-29 07:32:41,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-29 07:32:41,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-29 07:32:41,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-29 07:32:41,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-29 07:32:41,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-29 07:32:41,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-29 07:32:41,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-29 07:32:41,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-29 07:32:41,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-29 07:32:41,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-29 07:32:41,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-29 07:32:41,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-29 07:32:41,766 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.epf [2022-01-29 07:32:41,790 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-29 07:32:41,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-29 07:32:41,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-29 07:32:41,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-29 07:32:41,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-29 07:32:41,792 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-29 07:32:41,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-29 07:32:41,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-29 07:32:41,792 INFO L138 SettingsManager]: * Use SBE=true [2022-01-29 07:32:41,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-29 07:32:41,793 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-29 07:32:41,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-29 07:32:41,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-29 07:32:41,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-29 07:32:41,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-29 07:32:41,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-29 07:32:41,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-29 07:32:41,793 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-29 07:32:41,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-29 07:32:41,794 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-29 07:32:41,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-29 07:32:41,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-29 07:32:41,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-29 07:32:41,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-29 07:32:41,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-29 07:32:41,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 07:32:41,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-29 07:32:41,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-29 07:32:41,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-29 07:32:41,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-29 07:32:41,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-29 07:32:41,795 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-29 07:32:41,795 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-01-29 07:32:41,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-29 07:32:41,795 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-01-29 07:32:41,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-29 07:32:41,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-29 07:32:42,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-29 07:32:42,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-29 07:32:42,006 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-29 07:32:42,006 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-29 07:32:42,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl [2022-01-29 07:32:42,008 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl' [2022-01-29 07:32:42,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-29 07:32:42,027 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-29 07:32:42,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-29 07:32:42,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-29 07:32:42,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-29 07:32:42,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:32:42" (1/1) ... [2022-01-29 07:32:42,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:32:42" (1/1) ... [2022-01-29 07:32:42,046 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-29 07:32:42,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-29 07:32:42,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-29 07:32:42,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-29 07:32:42,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-29 07:32:42,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:32:42" (1/1) ... [2022-01-29 07:32:42,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:32:42" (1/1) ... [2022-01-29 07:32:42,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:32:42" (1/1) ... [2022-01-29 07:32:42,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:32:42" (1/1) ... [2022-01-29 07:32:42,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:32:42" (1/1) ... [2022-01-29 07:32:42,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:32:42" (1/1) ... [2022-01-29 07:32:42,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:32:42" (1/1) ... [2022-01-29 07:32:42,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-29 07:32:42,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-29 07:32:42,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-29 07:32:42,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-29 07:32:42,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:32:42" (1/1) ... [2022-01-29 07:32:42,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 07:32:42,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:32:42,088 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) [2022-01-29 07:32:42,099 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 [2022-01-29 07:32:42,122 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-29 07:32:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-29 07:32:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-29 07:32:42,123 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-29 07:32:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-29 07:32:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-29 07:32:42,123 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-29 07:32:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-29 07:32:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-29 07:32:42,125 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-29 07:32:42,174 INFO L234 CfgBuilder]: Building ICFG [2022-01-29 07:32:42,176 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-29 07:32:42,241 INFO L275 CfgBuilder]: Performing block encoding [2022-01-29 07:32:42,245 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-29 07:32:42,245 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-29 07:32:42,246 INFO L202 PluginConnector]: Adding new model misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 07:32:42 BoogieIcfgContainer [2022-01-29 07:32:42,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-29 07:32:42,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-29 07:32:42,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-29 07:32:42,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-29 07:32:42,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:32:42" (1/2) ... [2022-01-29 07:32:42,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8378f4 and model type misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 07:32:42, skipping insertion in model container [2022-01-29 07:32:42,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 07:32:42" (2/2) ... [2022-01-29 07:32:42,251 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-2-unrolled.wvr.bpl [2022-01-29 07:32:42,254 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-29 07:32:42,254 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-29 07:32:42,254 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-29 07:32:42,254 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-29 07:32:42,272 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-29 07:32:42,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 07:32:42,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:32:42,344 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) [2022-01-29 07:32:42,379 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 [2022-01-29 07:32:42,417 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-29 07:32:42,426 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, 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 [2022-01-29 07:32:42,426 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-29 07:32:42,579 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 07:32:42,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:32:42,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1285138939, now seen corresponding path program 1 times [2022-01-29 07:32:42,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:32:42,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285514112] [2022-01-29 07:32:42,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:32:42,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:32:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:32:46,082 INFO L134 CoverageAnalysis]: Checked inductivity of 6041 backedges. 5748 proven. 293 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:32:46,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:32:46,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285514112] [2022-01-29 07:32:46,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285514112] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:32:46,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524705462] [2022-01-29 07:32:46,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:32:46,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:32:46,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:32:46,092 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) [2022-01-29 07:32:46,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-29 07:32:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:32:46,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 114 conjunts are in the unsatisfiable core [2022-01-29 07:32:46,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:32:47,018 INFO L134 CoverageAnalysis]: Checked inductivity of 6041 backedges. 5748 proven. 293 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:32:47,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:32:53,625 INFO L134 CoverageAnalysis]: Checked inductivity of 6041 backedges. 5748 proven. 293 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:32:53,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524705462] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:32:53,626 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:32:53,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93, 111] total 203 [2022-01-29 07:32:53,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629537339] [2022-01-29 07:32:53,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:32:53,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 204 states [2022-01-29 07:32:53,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:32:53,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 204 interpolants. [2022-01-29 07:32:53,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18768, Invalid=22644, Unknown=0, NotChecked=0, Total=41412 [2022-01-29 07:32:53,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:32:53,697 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:32:53,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 204 states, 204 states have (on average 2.8284313725490198) internal successors, (577), 203 states have internal predecessors, (577), 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) [2022-01-29 07:32:53,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:33:06,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-01-29 07:33:06,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-29 07:33:06,866 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 [2022-01-29 07:33:06,867 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 07:33:06,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:33:06,868 INFO L85 PathProgramCache]: Analyzing trace with hash 293498030, now seen corresponding path program 2 times [2022-01-29 07:33:06,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:33:06,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578249461] [2022-01-29 07:33:06,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:33:06,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:33:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:33:20,079 INFO L134 CoverageAnalysis]: Checked inductivity of 16919 backedges. 12076 proven. 4843 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:33:20,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:33:20,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578249461] [2022-01-29 07:33:20,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578249461] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:33:20,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512848585] [2022-01-29 07:33:20,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-29 07:33:20,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:33:20,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:33:20,084 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) [2022-01-29 07:33:20,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-29 07:33:20,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-29 07:33:20,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:33:20,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 180 conjunts are in the unsatisfiable core [2022-01-29 07:33:20,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:33:21,231 INFO L134 CoverageAnalysis]: Checked inductivity of 16919 backedges. 10476 proven. 4818 refuted. 0 times theorem prover too weak. 1625 trivial. 0 not checked. [2022-01-29 07:33:21,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:33:30,518 INFO L134 CoverageAnalysis]: Checked inductivity of 16919 backedges. 10476 proven. 4818 refuted. 0 times theorem prover too weak. 1625 trivial. 0 not checked. [2022-01-29 07:33:30,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512848585] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:33:30,521 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:33:30,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [229, 179, 179] total 318 [2022-01-29 07:33:30,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716615009] [2022-01-29 07:33:30,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:33:30,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 319 states [2022-01-29 07:33:30,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:33:30,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 319 interpolants. [2022-01-29 07:33:30,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25979, Invalid=75463, Unknown=0, NotChecked=0, Total=101442 [2022-01-29 07:33:30,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:33:30,542 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:33:30,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 319 states, 319 states have (on average 2.5329153605015673) internal successors, (808), 318 states have internal predecessors, (808), 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) [2022-01-29 07:33:30,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-01-29 07:33:30,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:33:47,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 444 states. [2022-01-29 07:33:47,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-01-29 07:33:47,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-29 07:33:48,146 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 [2022-01-29 07:33:48,147 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 07:33:48,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:33:48,148 INFO L85 PathProgramCache]: Analyzing trace with hash -386663180, now seen corresponding path program 3 times [2022-01-29 07:33:48,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:33:48,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999368746] [2022-01-29 07:33:48,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:33:48,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:33:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:34:06,986 INFO L134 CoverageAnalysis]: Checked inductivity of 29900 backedges. 16308 proven. 13592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:34:06,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:34:06,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999368746] [2022-01-29 07:34:06,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999368746] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:34:06,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021861045] [2022-01-29 07:34:06,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-29 07:34:06,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:34:06,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:34:06,988 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) [2022-01-29 07:34:06,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-29 07:34:07,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 84 check-sat command(s) [2022-01-29 07:34:07,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:34:07,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 312 conjunts are in the unsatisfiable core [2022-01-29 07:34:07,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:34:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 29900 backedges. 16308 proven. 13592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:34:08,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:34:30,794 INFO L134 CoverageAnalysis]: Checked inductivity of 29900 backedges. 16308 proven. 13592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:34:30,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021861045] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:34:30,799 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:34:30,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [297, 297, 311] total 483 [2022-01-29 07:34:30,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453442211] [2022-01-29 07:34:30,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:34:30,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 484 states [2022-01-29 07:34:30,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:34:30,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 484 interpolants. [2022-01-29 07:34:30,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66016, Invalid=167756, Unknown=0, NotChecked=0, Total=233772 [2022-01-29 07:34:30,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:34:30,831 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:34:30,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 484 states, 484 states have (on average 2.605371900826446) internal successors, (1261), 483 states have internal predecessors, (1261), 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) [2022-01-29 07:34:30,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 444 states. [2022-01-29 07:34:30,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-01-29 07:34:30,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:35:21,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 444 states. [2022-01-29 07:35:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-01-29 07:35:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 328 states. [2022-01-29 07:35:21,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-29 07:35:21,463 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 [2022-01-29 07:35:21,463 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 07:35:21,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:35:21,464 INFO L85 PathProgramCache]: Analyzing trace with hash 574864241, now seen corresponding path program 4 times [2022-01-29 07:35:21,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:35:21,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870085118] [2022-01-29 07:35:21,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:35:21,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:35:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:35:44,175 INFO L134 CoverageAnalysis]: Checked inductivity of 32171 backedges. 16606 proven. 15565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:35:44,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:35:44,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870085118] [2022-01-29 07:35:44,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870085118] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:35:44,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872850225] [2022-01-29 07:35:44,176 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-29 07:35:44,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:35:44,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:35:44,177 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) [2022-01-29 07:35:44,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-29 07:35:44,387 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-29 07:35:44,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:35:44,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 320 conjunts are in the unsatisfiable core [2022-01-29 07:35:44,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:35:45,707 INFO L134 CoverageAnalysis]: Checked inductivity of 32171 backedges. 16593 proven. 15563 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-29 07:35:45,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:36:06,711 INFO L134 CoverageAnalysis]: Checked inductivity of 32171 backedges. 16593 proven. 15563 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-29 07:36:06,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872850225] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:36:06,711 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:36:06,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [323, 319, 319] total 482 [2022-01-29 07:36:06,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044521660] [2022-01-29 07:36:06,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:36:06,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 483 states [2022-01-29 07:36:06,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:36:06,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 483 interpolants. [2022-01-29 07:36:06,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64569, Invalid=168237, Unknown=0, NotChecked=0, Total=232806 [2022-01-29 07:36:06,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:36:06,740 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:36:06,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 483 states, 483 states have (on average 2.5217391304347827) internal successors, (1218), 482 states have internal predecessors, (1218), 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) [2022-01-29 07:36:06,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 444 states. [2022-01-29 07:36:06,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-01-29 07:36:06,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 328 states. [2022-01-29 07:36:06,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:36:47,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 444 states. [2022-01-29 07:36:47,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-01-29 07:36:47,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 421 states. [2022-01-29 07:36:47,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 242 states. [2022-01-29 07:36:47,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-29 07:36:47,389 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 [2022-01-29 07:36:47,390 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 07:36:47,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:36:47,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1953791471, now seen corresponding path program 5 times [2022-01-29 07:36:47,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:36:47,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402398196] [2022-01-29 07:36:47,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:36:47,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:36:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:37:19,450 INFO L134 CoverageAnalysis]: Checked inductivity of 52408 backedges. 33493 proven. 18915 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:37:19,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:37:19,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402398196] [2022-01-29 07:37:19,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402398196] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:37:19,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660706249] [2022-01-29 07:37:19,450 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-29 07:37:19,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:37:19,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:37:19,452 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) [2022-01-29 07:37:19,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-29 07:37:19,997 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 119 check-sat command(s) [2022-01-29 07:37:19,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:37:20,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 1853 conjuncts, 408 conjunts are in the unsatisfiable core [2022-01-29 07:37:20,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:37:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 52408 backedges. 33493 proven. 18915 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:37:21,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:38:04,666 INFO L134 CoverageAnalysis]: Checked inductivity of 52408 backedges. 33493 proven. 18915 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:38:04,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660706249] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:38:04,666 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:38:04,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [393, 393, 407] total 693 [2022-01-29 07:38:04,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736968591] [2022-01-29 07:38:04,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:38:04,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 694 states [2022-01-29 07:38:04,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:38:04,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 694 interpolants. [2022-01-29 07:38:04,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135141, Invalid=345801, Unknown=0, NotChecked=0, Total=480942 [2022-01-29 07:38:04,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:38:04,712 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:38:04,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 694 states, 694 states have (on average 2.5734870317002883) internal successors, (1786), 693 states have internal predecessors, (1786), 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) [2022-01-29 07:38:04,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 444 states. [2022-01-29 07:38:04,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-01-29 07:38:04,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 421 states. [2022-01-29 07:38:04,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 242 states. [2022-01-29 07:38:04,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:41:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 444 states. [2022-01-29 07:41:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-01-29 07:41:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 421 states. [2022-01-29 07:41:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 242 states. [2022-01-29 07:41:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 501 states. [2022-01-29 07:41:03,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-29 07:41:03,986 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 [2022-01-29 07:41:03,988 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 07:41:03,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:41:03,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1791253262, now seen corresponding path program 6 times [2022-01-29 07:41:03,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:41:03,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105634744] [2022-01-29 07:41:03,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:41:03,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:41:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:42:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 73087 backedges. 40641 proven. 32446 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:42:01,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:42:01,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105634744] [2022-01-29 07:42:01,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105634744] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:42:01,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531408392] [2022-01-29 07:42:01,569 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-29 07:42:01,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:42:01,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:42:01,571 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) [2022-01-29 07:42:01,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-29 07:42:02,187 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 129 check-sat command(s) [2022-01-29 07:42:02,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:42:02,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 2204 conjuncts, 486 conjunts are in the unsatisfiable core [2022-01-29 07:42:02,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:42:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 73087 backedges. 40641 proven. 32446 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:42:04,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:42:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 73087 backedges. 40641 proven. 32446 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:42:57,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531408392] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:42:57,815 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:42:57,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [485, 485, 485] total 740 [2022-01-29 07:42:57,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054224071] [2022-01-29 07:42:57,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:42:57,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 741 states [2022-01-29 07:42:57,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:42:57,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 741 interpolants. [2022-01-29 07:42:57,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145472, Invalid=402868, Unknown=0, NotChecked=0, Total=548340 [2022-01-29 07:42:57,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:42:57,860 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:42:57,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 741 states, 741 states have (on average 2.51417004048583) internal successors, (1863), 740 states have internal predecessors, (1863), 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) [2022-01-29 07:42:57,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 444 states. [2022-01-29 07:42:57,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-01-29 07:42:57,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 421 states. [2022-01-29 07:42:57,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 242 states. [2022-01-29 07:42:57,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 501 states. [2022-01-29 07:42:57,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:45:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 444 states. [2022-01-29 07:45:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-01-29 07:45:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 421 states. [2022-01-29 07:45:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 242 states. [2022-01-29 07:45:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 673 states. [2022-01-29 07:45:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 386 states. [2022-01-29 07:45:51,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-01-29 07:45:52,152 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 [2022-01-29 07:45:52,153 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 07:45:52,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:45:52,153 INFO L85 PathProgramCache]: Analyzing trace with hash 829445393, now seen corresponding path program 7 times [2022-01-29 07:45:52,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:45:52,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096048660] [2022-01-29 07:45:52,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:45:52,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:45:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:47:04,779 INFO L134 CoverageAnalysis]: Checked inductivity of 111177 backedges. 67021 proven. 44156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:47:04,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:47:04,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096048660] [2022-01-29 07:47:04,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096048660] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:47:04,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882657541] [2022-01-29 07:47:04,780 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-29 07:47:04,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:47:04,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:47:04,783 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) [2022-01-29 07:47:04,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Received shutdown request... [2022-01-29 07:47:04,978 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 [2022-01-29 07:47:04,978 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 [2022-01-29 07:47:04,984 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 [2022-01-29 07:47:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:47:05,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 2699 conjuncts, 596 conjunts are in the unsatisfiable core [2022-01-29 07:47:05,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:47:05,237 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-01-29 07:47:05,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-01-29 07:47:05,451 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 [2022-01-29 07:47:05,452 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1497 with TraceHistMax 165,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2022-01-29 07:47:05,453 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-29 07:47:05,453 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-29 07:47:05,457 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-01-29 07:47:05,459 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-29 07:47:05,459 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-29 07:47:05,460 INFO L202 PluginConnector]: Adding new model misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 07:47:05 BasicIcfg [2022-01-29 07:47:05,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-29 07:47:05,461 INFO L158 Benchmark]: Toolchain (without parser) took 863434.38ms. Allocated memory was 215.0MB in the beginning and 2.3GB in the end (delta: 2.0GB). Free memory was 175.8MB in the beginning and 1.2GB in the end (delta: -987.8MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-01-29 07:47:05,461 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 215.0MB. Free memory is still 176.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-29 07:47:05,461 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.78ms. Allocated memory is still 215.0MB. Free memory was 175.7MB in the beginning and 174.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 07:47:05,462 INFO L158 Benchmark]: Boogie Preprocessor took 13.35ms. Allocated memory is still 215.0MB. Free memory was 174.2MB in the beginning and 173.3MB in the end (delta: 891.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 07:47:05,463 INFO L158 Benchmark]: RCFGBuilder took 183.41ms. Allocated memory is still 215.0MB. Free memory was 173.2MB in the beginning and 164.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-29 07:47:05,463 INFO L158 Benchmark]: TraceAbstraction took 863213.27ms. Allocated memory was 215.0MB in the beginning and 2.3GB in the end (delta: 2.0GB). Free memory was 164.0MB in the beginning and 1.2GB in the end (delta: -999.6MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2022-01-29 07:47:05,464 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 0.09ms. Allocated memory is still 215.0MB. Free memory is still 176.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.78ms. Allocated memory is still 215.0MB. Free memory was 175.7MB in the beginning and 174.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.35ms. Allocated memory is still 215.0MB. Free memory was 174.2MB in the beginning and 173.3MB in the end (delta: 891.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 183.41ms. Allocated memory is still 215.0MB. Free memory was 173.2MB in the beginning and 164.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 863213.27ms. Allocated memory was 215.0MB in the beginning and 2.3GB in the end (delta: 2.0GB). Free memory was 164.0MB in the beginning and 1.2GB in the end (delta: -999.6MB). Peak memory consumption was 1.0GB. 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: 45]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1497 with TraceHistMax 165,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 40]: 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 1497 with TraceHistMax 165,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 40]: 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 1497 with TraceHistMax 165,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 40 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 863.1s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 474.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2303, 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: 0.3s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 309.3s InterpolantComputationTime, 9442 NumberOfCodeBlocks, 9442 NumberOfCodeBlocksAsserted, 342 NumberOfCheckSat, 14145 ConstructedInterpolants, 0 QuantifiedInterpolants, 106379 SizeOfPredicates, 18 NumberOfNonLiveVariables, 8535 ConjunctsInSsa, 1820 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 374670/631578 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