/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 03:40:06,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 03:40:06,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 03:40:06,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-20 03:40:06,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 03:40:06,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 03:40:06,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 03:40:06,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 03:40:06,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 03:40:06,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 03:40:06,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 03:40:06,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 03:40:06,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 03:40:06,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 03:40:06,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 03:40:06,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 03:40:06,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 03:40:06,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 03:40:06,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 03:40:06,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 03:40:06,898 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.epf [2022-02-20 03:40:06,922 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 03:40:06,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 03:40:06,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 03:40:06,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 03:40:06,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 03:40:06,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 03:40:06,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 03:40:06,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 03:40:06,924 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 03:40:06,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 03:40:06,924 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 03:40:06,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 03:40:06,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 03:40:06,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 03:40:06,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 03:40:06,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 03:40:06,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 03:40:06,925 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 03:40:06,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 03:40:06,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 03:40:06,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 03:40:06,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 03:40:06,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 03:40:06,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 03:40:06,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 03:40:06,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:40:06,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 03:40:06,927 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 03:40:06,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 03:40:06,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 03:40:06,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 03:40:06,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 03:40:06,928 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 03:40:06,928 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 03:40:06,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 03:40:06,928 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 03:40:06,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 03:40:07,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 03:40:07,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 03:40:07,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 03:40:07,146 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 03:40:07,147 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 03:40:07,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2.wvr.bpl [2022-02-20 03:40:07,149 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2.wvr.bpl' [2022-02-20 03:40:07,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 03:40:07,171 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 03:40:07,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 03:40:07,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 03:40:07,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 03:40:07,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:40:07" (1/1) ... [2022-02-20 03:40:07,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:40:07" (1/1) ... [2022-02-20 03:40:07,207 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 03:40:07,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 03:40:07,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 03:40:07,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 03:40:07,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 03:40:07,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:40:07" (1/1) ... [2022-02-20 03:40:07,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:40:07" (1/1) ... [2022-02-20 03:40:07,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:40:07" (1/1) ... [2022-02-20 03:40:07,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:40:07" (1/1) ... [2022-02-20 03:40:07,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:40:07" (1/1) ... [2022-02-20 03:40:07,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:40:07" (1/1) ... [2022-02-20 03:40:07,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:40:07" (1/1) ... [2022-02-20 03:40:07,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 03:40:07,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 03:40:07,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 03:40:07,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 03:40:07,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:40:07" (1/1) ... [2022-02-20 03:40:07,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:40:07,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:40:07,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 03:40:07,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 03:40:07,288 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 03:40:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 03:40:07,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 03:40:07,288 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 03:40:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 03:40:07,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 03:40:07,288 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 03:40:07,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 03:40:07,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 03:40:07,290 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 03:40:07,327 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 03:40:07,329 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 03:40:07,437 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 03:40:07,442 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 03:40:07,443 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 03:40:07,444 INFO L202 PluginConnector]: Adding new model misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:40:07 BoogieIcfgContainer [2022-02-20 03:40:07,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 03:40:07,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 03:40:07,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 03:40:07,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 03:40:07,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:40:07" (1/2) ... [2022-02-20 03:40:07,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e1f2dd and model type misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:40:07, skipping insertion in model container [2022-02-20 03:40:07,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:40:07" (2/2) ... [2022-02-20 03:40:07,455 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-2.wvr.bpl [2022-02-20 03:40:07,460 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 03:40:07,461 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 03:40:07,461 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 03:40:07,461 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 03:40:07,520 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-20 03:40:07,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 03:40:07,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:40:07,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-20 03:40:07,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-20 03:40:07,581 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 03:40:07,587 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 03:40:07,587 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-20 03:40:07,840 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8962 transitions and produced 4918 states. [2022-02-20 03:40:07,842 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:40:07,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:40:07,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1865866354, now seen corresponding path program 1 times [2022-02-20 03:40:07,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:40:07,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907800846] [2022-02-20 03:40:07,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:40:07,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:40:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:40:08,267 INFO L134 CoverageAnalysis]: Checked inductivity of 24290 backedges. 670 proven. 0 refuted. 0 times theorem prover too weak. 23620 trivial. 0 not checked. [2022-02-20 03:40:08,268 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:40:08,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907800846] [2022-02-20 03:40:08,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907800846] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 03:40:08,268 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 03:40:08,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-20 03:40:08,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546691223] [2022-02-20 03:40:08,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 03:40:08,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 03:40:08,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:40:08,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 03:40:08,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 03:40:08,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:40:08,342 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:40:08,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:40:08,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:40:08,457 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4981 transitions and produced 2733 states. [2022-02-20 03:40:08,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:40:08,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 03:40:08,458 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:40:08,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:40:08,460 INFO L85 PathProgramCache]: Analyzing trace with hash -947133492, now seen corresponding path program 2 times [2022-02-20 03:40:08,460 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:40:08,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651160733] [2022-02-20 03:40:08,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:40:08,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:40:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:40:08,616 INFO L134 CoverageAnalysis]: Checked inductivity of 6280 backedges. 3086 proven. 0 refuted. 0 times theorem prover too weak. 3194 trivial. 0 not checked. [2022-02-20 03:40:08,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:40:08,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651160733] [2022-02-20 03:40:08,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651160733] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 03:40:08,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 03:40:08,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-20 03:40:08,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366558741] [2022-02-20 03:40:08,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 03:40:08,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 03:40:08,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:40:08,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 03:40:08,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 03:40:08,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:40:08,619 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:40:08,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:40:08,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:40:08,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:40:08,680 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2624 transitions and produced 1869 states. [2022-02-20 03:40:08,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:40:08,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:40:08,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 03:40:08,681 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:40:08,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:40:08,683 INFO L85 PathProgramCache]: Analyzing trace with hash 2005741279, now seen corresponding path program 3 times [2022-02-20 03:40:08,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:40:08,684 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214919101] [2022-02-20 03:40:08,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:40:08,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:40:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:40:11,217 INFO L134 CoverageAnalysis]: Checked inductivity of 13531 backedges. 13029 proven. 467 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-02-20 03:40:11,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:40:11,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214919101] [2022-02-20 03:40:11,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214919101] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:40:11,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531491814] [2022-02-20 03:40:11,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 03:40:11,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:40:11,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:40:11,230 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:40:11,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 03:40:11,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 56 check-sat command(s) [2022-02-20 03:40:11,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:40:11,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 92 conjunts are in the unsatisfiable core [2022-02-20 03:40:11,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:40:12,254 INFO L134 CoverageAnalysis]: Checked inductivity of 13531 backedges. 13029 proven. 467 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-02-20 03:40:12,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:40:17,472 INFO L134 CoverageAnalysis]: Checked inductivity of 13531 backedges. 13029 proven. 502 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:40:17,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531491814] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:40:17,472 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:40:17,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73, 90] total 162 [2022-02-20 03:40:17,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472815300] [2022-02-20 03:40:17,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:40:17,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 163 states [2022-02-20 03:40:17,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:40:17,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 163 interpolants. [2022-02-20 03:40:17,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11962, Invalid=14444, Unknown=0, NotChecked=0, Total=26406 [2022-02-20 03:40:17,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:40:17,494 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:40:17,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 163 states, 163 states have (on average 5.404907975460123) internal successors, (881), 162 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:40:17,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:40:17,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:40:17,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:40:33,577 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2540 transitions and produced 2077 states. [2022-02-20 03:40:33,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:40:33,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:40:33,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 285 states. [2022-02-20 03:40:33,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-20 03:40:33,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-02-20 03:40:33,788 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:40:33,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:40:33,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1398206508, now seen corresponding path program 4 times [2022-02-20 03:40:33,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:40:33,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743759240] [2022-02-20 03:40:33,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:40:33,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:40:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:40:42,269 INFO L134 CoverageAnalysis]: Checked inductivity of 38165 backedges. 27556 proven. 10609 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:40:42,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:40:42,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743759240] [2022-02-20 03:40:42,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743759240] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:40:42,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111502421] [2022-02-20 03:40:42,271 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 03:40:42,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:40:42,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:40:42,272 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:40:42,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 03:40:42,456 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 03:40:42,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:40:42,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 1286 conjuncts, 142 conjunts are in the unsatisfiable core [2022-02-20 03:40:42,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:40:43,980 INFO L134 CoverageAnalysis]: Checked inductivity of 38165 backedges. 23692 proven. 10609 refuted. 0 times theorem prover too weak. 3864 trivial. 0 not checked. [2022-02-20 03:40:43,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:40:51,214 INFO L134 CoverageAnalysis]: Checked inductivity of 38165 backedges. 23692 proven. 10609 refuted. 0 times theorem prover too weak. 3864 trivial. 0 not checked. [2022-02-20 03:40:51,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111502421] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:40:51,215 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:40:51,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [182, 141, 141] total 252 [2022-02-20 03:40:51,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250918183] [2022-02-20 03:40:51,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:40:51,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 253 states [2022-02-20 03:40:51,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:40:51,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 253 interpolants. [2022-02-20 03:40:51,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16338, Invalid=47418, Unknown=0, NotChecked=0, Total=63756 [2022-02-20 03:40:51,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:40:51,231 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:40:51,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 253 states, 253 states have (on average 4.996047430830039) internal successors, (1264), 252 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:40:51,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:40:51,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:40:51,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 285 states. [2022-02-20 03:40:51,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:41:03,365 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 36064 transitions and produced 18299 states. [2022-02-20 03:41:03,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:41:03,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:41:03,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:41:03,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-02-20 03:41:03,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-20 03:41:03,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:41:03,579 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:41:03,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:41:03,580 INFO L85 PathProgramCache]: Analyzing trace with hash 272095966, now seen corresponding path program 5 times [2022-02-20 03:41:03,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:41:03,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25545359] [2022-02-20 03:41:03,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:41:03,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:41:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:41:15,392 INFO L134 CoverageAnalysis]: Checked inductivity of 74326 backedges. 42137 proven. 32157 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-20 03:41:15,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:41:15,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25545359] [2022-02-20 03:41:15,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25545359] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:41:15,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688849180] [2022-02-20 03:41:15,393 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 03:41:15,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:41:15,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:41:15,398 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:41:15,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 03:41:15,872 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 117 check-sat command(s) [2022-02-20 03:41:15,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:41:15,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1825 conjuncts, 242 conjunts are in the unsatisfiable core [2022-02-20 03:41:15,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:41:20,492 INFO L134 CoverageAnalysis]: Checked inductivity of 74326 backedges. 31720 proven. 42327 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-02-20 03:41:20,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:41:34,067 INFO L134 CoverageAnalysis]: Checked inductivity of 74326 backedges. 31720 proven. 42347 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-02-20 03:41:34,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688849180] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:41:34,067 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:41:34,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [243, 231, 241] total 386 [2022-02-20 03:41:34,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926028272] [2022-02-20 03:41:34,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:41:34,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 387 states [2022-02-20 03:41:34,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:41:34,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 387 interpolants. [2022-02-20 03:41:34,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41531, Invalid=107851, Unknown=0, NotChecked=0, Total=149382 [2022-02-20 03:41:34,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:41:34,117 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:41:34,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 387 states, 387 states have (on average 5.20671834625323) internal successors, (2015), 386 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:41:34,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:41:34,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:41:34,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:41:34,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. [2022-02-20 03:41:34,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:42:27,151 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3834 transitions and produced 2961 states. [2022-02-20 03:42:27,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:42:27,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:42:27,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:42:27,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-02-20 03:42:27,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 326 states. [2022-02-20 03:42:27,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-20 03:42:27,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:42:27,360 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:42:27,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:42:27,360 INFO L85 PathProgramCache]: Analyzing trace with hash 499864524, now seen corresponding path program 6 times [2022-02-20 03:42:27,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:42:27,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742577561] [2022-02-20 03:42:27,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:42:27,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:42:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:42:29,175 INFO L134 CoverageAnalysis]: Checked inductivity of 76832 backedges. 0 proven. 17808 refuted. 0 times theorem prover too weak. 59024 trivial. 0 not checked. [2022-02-20 03:42:29,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:42:29,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742577561] [2022-02-20 03:42:29,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742577561] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:42:29,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003925542] [2022-02-20 03:42:29,176 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 03:42:29,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:42:29,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:42:29,193 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:42:29,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 03:42:29,682 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 110 check-sat command(s) [2022-02-20 03:42:29,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:42:29,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 267 conjunts are in the unsatisfiable core [2022-02-20 03:42:29,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:42:34,775 INFO L134 CoverageAnalysis]: Checked inductivity of 76832 backedges. 0 proven. 38416 refuted. 0 times theorem prover too weak. 38416 trivial. 0 not checked. [2022-02-20 03:42:34,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:42:36,073 INFO L134 CoverageAnalysis]: Checked inductivity of 76832 backedges. 0 proven. 17551 refuted. 0 times theorem prover too weak. 59281 trivial. 0 not checked. [2022-02-20 03:42:36,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003925542] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:42:36,074 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:42:36,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 134, 5] total 140 [2022-02-20 03:42:36,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007582503] [2022-02-20 03:42:36,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:42:36,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 141 states [2022-02-20 03:42:36,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:42:36,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2022-02-20 03:42:36,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=488, Invalid=19252, Unknown=0, NotChecked=0, Total=19740 [2022-02-20 03:42:36,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:42:36,108 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:42:36,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 141 states, 141 states have (on average 4.964539007092198) internal successors, (700), 140 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:42:36,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:42:36,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:42:36,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:42:36,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. [2022-02-20 03:42:36,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 326 states. [2022-02-20 03:42:36,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:42:59,452 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 36368 transitions and produced 19318 states. [2022-02-20 03:42:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:42:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:42:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:42:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-02-20 03:42:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 405 states. [2022-02-20 03:42:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2022-02-20 03:42:59,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-20 03:42:59,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:42:59,667 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:42:59,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:42:59,668 INFO L85 PathProgramCache]: Analyzing trace with hash 15775038, now seen corresponding path program 7 times [2022-02-20 03:42:59,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:42:59,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049238779] [2022-02-20 03:42:59,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:42:59,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:43:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:43:19,759 INFO L134 CoverageAnalysis]: Checked inductivity of 132964 backedges. 88916 proven. 44016 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-20 03:43:19,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:43:19,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049238779] [2022-02-20 03:43:19,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049238779] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:43:19,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570476489] [2022-02-20 03:43:19,760 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-20 03:43:19,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:43:19,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:43:19,761 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) [2022-02-20 03:43:19,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-20 03:43:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:43:20,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 2399 conjuncts, 342 conjunts are in the unsatisfiable core [2022-02-20 03:43:20,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:43:22,503 INFO L134 CoverageAnalysis]: Checked inductivity of 132964 backedges. 88916 proven. 44016 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-20 03:43:22,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:43:50,193 INFO L134 CoverageAnalysis]: Checked inductivity of 132964 backedges. 88916 proven. 44048 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:43:50,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570476489] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:43:50,194 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:43:50,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [325, 325, 341] total 593 [2022-02-20 03:43:50,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592310328] [2022-02-20 03:43:50,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:43:50,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 594 states [2022-02-20 03:43:50,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:43:50,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 594 interpolants. [2022-02-20 03:43:50,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99305, Invalid=252937, Unknown=0, NotChecked=0, Total=352242 [2022-02-20 03:43:50,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:43:50,221 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:43:50,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 594 states, 594 states have (on average 5.102693602693603) internal successors, (3031), 593 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:43:50,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:43:50,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:43:50,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:43:50,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. [2022-02-20 03:43:50,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 405 states. [2022-02-20 03:43:50,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 204 states. [2022-02-20 03:43:50,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:50:04,491 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 69771 transitions and produced 33711 states. [2022-02-20 03:50:04,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:50:04,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:50:04,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 374 states. [2022-02-20 03:50:04,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-02-20 03:50:04,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 407 states. [2022-02-20 03:50:04,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2022-02-20 03:50:04,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 666 states. [2022-02-20 03:50:04,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-20 03:50:04,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:50:04,707 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:50:04,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:50:04,708 INFO L85 PathProgramCache]: Analyzing trace with hash -818824028, now seen corresponding path program 8 times [2022-02-20 03:50:04,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:50:04,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928328668] [2022-02-20 03:50:04,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:50:04,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:50:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:50:48,866 INFO L134 CoverageAnalysis]: Checked inductivity of 271426 backedges. 150656 proven. 120738 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-20 03:50:48,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:50:48,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928328668] [2022-02-20 03:50:48,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928328668] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:50:48,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608931814] [2022-02-20 03:50:48,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 03:50:48,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:50:48,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:50:48,868 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) [2022-02-20 03:50:48,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-20 03:50:49,448 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 03:50:49,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:50:49,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 3463 conjuncts, 494 conjunts are in the unsatisfiable core [2022-02-20 03:50:49,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:50:54,055 INFO L134 CoverageAnalysis]: Checked inductivity of 271426 backedges. 150656 proven. 120738 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-20 03:50:54,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:51:45,015 INFO L134 CoverageAnalysis]: Checked inductivity of 271426 backedges. 150656 proven. 120770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:51:45,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608931814] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:51:45,016 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:51:45,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [477, 477, 493] total 773 [2022-02-20 03:51:45,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828838792] [2022-02-20 03:51:45,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:51:45,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 774 states [2022-02-20 03:51:45,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:51:45,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 774 interpolants. [2022-02-20 03:51:45,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168095, Invalid=430207, Unknown=0, NotChecked=0, Total=598302 [2022-02-20 03:51:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:51:45,092 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:51:45,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 774 states, 774 states have (on average 5.078811369509044) internal successors, (3931), 773 states have internal predecessors, (3931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:51:45,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:51:45,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:51:45,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 374 states. [2022-02-20 03:51:45,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. [2022-02-20 03:51:45,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 407 states. [2022-02-20 03:51:45,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 204 states. [2022-02-20 03:51:45,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 666 states. [2022-02-20 03:51:45,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-20 03:54:24,063 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 [2022-02-20 03:54:24,069 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 [2022-02-20 03:54:24,069 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 03:54:24,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-20 03:54:24,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:54:24,317 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-02-20 03:54:24,319 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-20 03:54:24,319 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-20 03:54:24,319 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-20 03:54:24,323 INFO L732 BasicCegarLoop]: Path program histogram: [8] [2022-02-20 03:54:24,325 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 03:54:24,325 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 03:54:24,326 INFO L202 PluginConnector]: Adding new model misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 03:54:24 BasicIcfg [2022-02-20 03:54:24,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 03:54:24,327 INFO L158 Benchmark]: Toolchain (without parser) took 857155.48ms. Allocated memory was 191.9MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 153.4MB in the beginning and 759.5MB in the end (delta: -606.1MB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2022-02-20 03:54:24,328 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 191.9MB. Free memory is still 154.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 03:54:24,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.34ms. Allocated memory is still 191.9MB. Free memory was 153.3MB in the beginning and 151.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-20 03:54:24,329 INFO L158 Benchmark]: Boogie Preprocessor took 14.99ms. Allocated memory is still 191.9MB. Free memory was 151.8MB in the beginning and 150.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 03:54:24,329 INFO L158 Benchmark]: RCFGBuilder took 219.43ms. Allocated memory is still 191.9MB. Free memory was 150.7MB in the beginning and 142.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-20 03:54:24,329 INFO L158 Benchmark]: TraceAbstraction took 856880.83ms. Allocated memory was 191.9MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 141.5MB in the beginning and 759.5MB in the end (delta: -618.0MB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2022-02-20 03:54:24,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12ms. Allocated memory is still 191.9MB. Free memory is still 154.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.34ms. Allocated memory is still 191.9MB. Free memory was 153.3MB in the beginning and 151.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.99ms. Allocated memory is still 191.9MB. Free memory was 151.8MB in the beginning and 150.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 219.43ms. Allocated memory is still 191.9MB. Free memory was 150.7MB in the beginning and 142.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 856880.83ms. Allocated memory was 191.9MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 141.5MB in the beginning and 759.5MB in the end (delta: -618.0MB). Peak memory consumption was 2.4GB. 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: 59]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 44 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 856.8s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 638.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2326, 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, 6.0s SatisfiabilityAnalysisTime, 209.8s InterpolantComputationTime, 17269 NumberOfCodeBlocks, 17269 NumberOfCodeBlocksAsserted, 295 NumberOfCheckSat, 25405 ConstructedInterpolants, 0 QuantifiedInterpolants, 172617 SizeOfPredicates, 19 NumberOfNonLiveVariables, 11482 ConjunctsInSsa, 1579 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 1134107/1852302 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