/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 16:17:26,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 16:17:26,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 16:17:26,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 16:17:26,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 16:17:26,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 16:17:26,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 16:17:26,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 16:17:26,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 16:17:26,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 16:17:26,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 16:17:26,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 16:17:26,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 16:17:26,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 16:17:26,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 16:17:26,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 16:17:26,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 16:17:26,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 16:17:26,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 16:17:26,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 16:17:26,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 16:17:26,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 16:17:26,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 16:17:26,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 16:17:26,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 16:17:26,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 16:17:26,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 16:17:26,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 16:17:26,195 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-02-19 16:17:26,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 16:17:26,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 16:17:26,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 16:17:26,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 16:17:26,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 16:17:26,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 16:17:26,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 16:17:26,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 16:17:26,214 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 16:17:26,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 16:17:26,215 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 16:17:26,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 16:17:26,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 16:17:26,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 16:17:26,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 16:17:26,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 16:17:26,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 16:17:26,215 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 16:17:26,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 16:17:26,215 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 16:17:26,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 16:17:26,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 16:17:26,216 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 16:17:26,216 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 16:17:26,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 16:17:26,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 16:17:26,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 16:17:26,217 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 16:17:26,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 16:17:26,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 16:17:26,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 16:17:26,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 16:17:26,218 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 16:17:26,218 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 16:17:26,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 16:17:26,218 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 16:17:26,218 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-02-19 16:17:26,218 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 16:17:26,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 16:17:26,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 16:17:26,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 16:17:26,399 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 16:17:26,402 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 16:17:26,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl [2022-02-19 16:17:26,403 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl' [2022-02-19 16:17:26,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 16:17:26,424 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 16:17:26,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 16:17:26,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 16:17:26,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 16:17:26,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:26" (1/1) ... [2022-02-19 16:17:26,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:26" (1/1) ... [2022-02-19 16:17:26,448 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 16:17:26,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 16:17:26,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 16:17:26,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 16:17:26,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 16:17:26,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:26" (1/1) ... [2022-02-19 16:17:26,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:26" (1/1) ... [2022-02-19 16:17:26,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:26" (1/1) ... [2022-02-19 16:17:26,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:26" (1/1) ... [2022-02-19 16:17:26,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:26" (1/1) ... [2022-02-19 16:17:26,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:26" (1/1) ... [2022-02-19 16:17:26,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:26" (1/1) ... [2022-02-19 16:17:26,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 16:17:26,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 16:17:26,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 16:17:26,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 16:17:26,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:26" (1/1) ... [2022-02-19 16:17:26,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 16:17:26,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:26,497 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) [2022-02-19 16:17:26,531 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 [2022-02-19 16:17:26,552 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 16:17:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 16:17:26,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 16:17:26,553 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 16:17:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 16:17:26,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 16:17:26,553 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 16:17:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 16:17:26,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 16:17:26,554 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-19 16:17:26,554 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 16:17:26,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 16:17:26,554 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-19 16:17:26,554 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-19 16:17:26,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-19 16:17:26,555 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 16:17:26,600 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 16:17:26,602 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 16:17:26,749 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 16:17:26,775 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 16:17:26,775 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 16:17:26,777 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:17:26 BoogieIcfgContainer [2022-02-19 16:17:26,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 16:17:26,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 16:17:26,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 16:17:26,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 16:17:26,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:26" (1/2) ... [2022-02-19 16:17:26,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c463f40 and model type buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 04:17:26, skipping insertion in model container [2022-02-19 16:17:26,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:17:26" (2/2) ... [2022-02-19 16:17:26,791 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-mult-alt.wvr.bpl [2022-02-19 16:17:26,795 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 16:17:26,795 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 16:17:26,795 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 16:17:26,795 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 16:17:26,842 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-19 16:17:26,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 16:17:26,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:26,924 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) [2022-02-19 16:17:26,941 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 [2022-02-19 16:17:26,960 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 16:17:26,965 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-02-19 16:17:26,965 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-19 16:17:27,265 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 12631 transitions and produced 4480 states. [2022-02-19 16:17:27,267 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:17:27,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:27,275 INFO L85 PathProgramCache]: Analyzing trace with hash 170228445, now seen corresponding path program 1 times [2022-02-19 16:17:27,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:27,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926381394] [2022-02-19 16:17:27,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:27,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:27,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2762 backedges. 869 proven. 0 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2022-02-19 16:17:27,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:27,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926381394] [2022-02-19 16:17:27,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926381394] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 16:17:27,817 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 16:17:27,817 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 16:17:27,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085789371] [2022-02-19 16:17:27,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 16:17:27,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 16:17:27,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:27,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 16:17:27,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 16:17:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:27,867 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:27,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2022-02-19 16:17:27,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:27,954 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1431 transitions and produced 906 states. [2022-02-19 16:17:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:27,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-19 16:17:27,955 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:17:27,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:27,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1501018683, now seen corresponding path program 2 times [2022-02-19 16:17:27,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:27,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166101557] [2022-02-19 16:17:27,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:27,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 2472 proven. 446 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-19 16:17:29,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:29,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166101557] [2022-02-19 16:17:29,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166101557] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:29,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693240961] [2022-02-19 16:17:29,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 16:17:29,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:29,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:29,264 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) [2022-02-19 16:17:29,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 16:17:29,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 16:17:29,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:17:29,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 54 conjunts are in the unsatisfiable core [2022-02-19 16:17:29,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:17:30,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 2585 proven. 120 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-02-19 16:17:30,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:17:31,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 2585 proven. 120 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-02-19 16:17:31,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693240961] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:17:31,105 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:17:31,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 21, 21] total 77 [2022-02-19 16:17:31,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495074908] [2022-02-19 16:17:31,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:17:31,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-19 16:17:31,109 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:31,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-19 16:17:31,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1406, Invalid=4600, Unknown=0, NotChecked=0, Total=6006 [2022-02-19 16:17:31,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:31,115 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:31,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 5.487179487179487) internal successors, (428), 77 states have internal predecessors, (428), 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) [2022-02-19 16:17:31,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:31,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:33,566 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2532 transitions and produced 1961 states. [2022-02-19 16:17:33,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:33,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:17:33,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-19 16:17:33,784 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,SelfDestructingSolverStorable1 [2022-02-19 16:17:33,785 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:17:33,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:33,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1249696097, now seen corresponding path program 3 times [2022-02-19 16:17:33,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:33,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778482961] [2022-02-19 16:17:33,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:33,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 12695 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 12424 trivial. 0 not checked. [2022-02-19 16:17:33,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:33,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778482961] [2022-02-19 16:17:33,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778482961] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 16:17:33,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 16:17:33,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 16:17:33,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501616479] [2022-02-19 16:17:33,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 16:17:33,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 16:17:33,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:33,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 16:17:33,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 16:17:33,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:33,890 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:33,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-02-19 16:17:33,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:33,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:17:33,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:33,932 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2505 transitions and produced 1936 states. [2022-02-19 16:17:33,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:33,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:17:33,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:33,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-19 16:17:33,933 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:17:33,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:33,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2090280474, now seen corresponding path program 4 times [2022-02-19 16:17:33,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:33,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117761628] [2022-02-19 16:17:33,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:33,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:36,303 INFO L134 CoverageAnalysis]: Checked inductivity of 12437 backedges. 5765 proven. 6603 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-02-19 16:17:36,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:36,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117761628] [2022-02-19 16:17:36,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117761628] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:36,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429618815] [2022-02-19 16:17:36,304 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 16:17:36,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:36,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:36,305 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) [2022-02-19 16:17:36,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 16:17:36,491 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 16:17:36,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:17:36,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 128 conjunts are in the unsatisfiable core [2022-02-19 16:17:36,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:17:39,723 INFO L134 CoverageAnalysis]: Checked inductivity of 12437 backedges. 10132 proven. 2078 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-02-19 16:17:39,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:17:41,236 INFO L134 CoverageAnalysis]: Checked inductivity of 12437 backedges. 10132 proven. 2078 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-02-19 16:17:41,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429618815] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:17:41,237 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:17:41,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 64, 64] total 177 [2022-02-19 16:17:41,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144096889] [2022-02-19 16:17:41,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:17:41,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 178 states [2022-02-19 16:17:41,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:41,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 178 interpolants. [2022-02-19 16:17:41,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7635, Invalid=23871, Unknown=0, NotChecked=0, Total=31506 [2022-02-19 16:17:41,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:41,248 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:41,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 178 states, 178 states have (on average 4.904494382022472) internal successors, (873), 177 states have internal predecessors, (873), 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) [2022-02-19 16:17:41,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:41,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:17:41,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:41,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:46,972 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3747 transitions and produced 2962 states. [2022-02-19 16:17:46,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:46,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:17:46,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:46,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 16:17:47,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-19 16:17:47,190 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 [2022-02-19 16:17:47,190 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:17:47,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:47,191 INFO L85 PathProgramCache]: Analyzing trace with hash -157571938, now seen corresponding path program 5 times [2022-02-19 16:17:47,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:47,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404301080] [2022-02-19 16:17:47,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:47,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:53,169 INFO L134 CoverageAnalysis]: Checked inductivity of 29296 backedges. 13820 proven. 15406 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-02-19 16:17:53,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:53,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404301080] [2022-02-19 16:17:53,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404301080] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:53,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891472951] [2022-02-19 16:17:53,170 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 16:17:53,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:53,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:53,181 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) [2022-02-19 16:17:53,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 16:17:53,874 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 122 check-sat command(s) [2022-02-19 16:17:53,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:17:53,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 1633 conjuncts, 201 conjunts are in the unsatisfiable core [2022-02-19 16:17:53,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:18:00,088 INFO L134 CoverageAnalysis]: Checked inductivity of 29296 backedges. 23407 proven. 5662 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-02-19 16:18:00,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:18:02,388 INFO L134 CoverageAnalysis]: Checked inductivity of 29296 backedges. 23407 proven. 5662 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-02-19 16:18:02,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891472951] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:18:02,388 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:18:02,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [154, 109, 109] total 304 [2022-02-19 16:18:02,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381217200] [2022-02-19 16:18:02,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:18:02,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 305 states [2022-02-19 16:18:02,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:18:02,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 305 interpolants. [2022-02-19 16:18:02,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24579, Invalid=68141, Unknown=0, NotChecked=0, Total=92720 [2022-02-19 16:18:02,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:18:02,404 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:18:02,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 305 states, 305 states have (on average 4.380327868852459) internal successors, (1336), 304 states have internal predecessors, (1336), 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) [2022-02-19 16:18:02,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:18:02,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:18:02,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:18:02,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 16:18:02,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:18:16,693 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5142 transitions and produced 4088 states. [2022-02-19 16:18:16,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:18:16,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:18:16,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:18:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 16:18:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 16:18:16,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 16:18:16,907 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 [2022-02-19 16:18:16,908 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:18:16,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:18:16,909 INFO L85 PathProgramCache]: Analyzing trace with hash 275097556, now seen corresponding path program 6 times [2022-02-19 16:18:16,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:18:16,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206162186] [2022-02-19 16:18:16,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:18:16,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:18:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:18:31,126 INFO L134 CoverageAnalysis]: Checked inductivity of 57691 backedges. 27950 proven. 29671 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-02-19 16:18:31,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:18:31,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206162186] [2022-02-19 16:18:31,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206162186] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:18:31,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937944268] [2022-02-19 16:18:31,127 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 16:18:31,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:18:31,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:18:31,132 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) [2022-02-19 16:18:31,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 16:18:31,234 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-02-19 16:18:31,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:18:31,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-19 16:18:31,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:18:32,503 INFO L134 CoverageAnalysis]: Checked inductivity of 57691 backedges. 401 proven. 5 refuted. 0 times theorem prover too weak. 57285 trivial. 0 not checked. [2022-02-19 16:18:32,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:18:33,224 INFO L134 CoverageAnalysis]: Checked inductivity of 57691 backedges. 401 proven. 5 refuted. 0 times theorem prover too weak. 57285 trivial. 0 not checked. [2022-02-19 16:18:33,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937944268] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:18:33,225 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:18:33,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [244, 6, 6] total 249 [2022-02-19 16:18:33,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361433480] [2022-02-19 16:18:33,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:18:33,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 249 states [2022-02-19 16:18:33,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:18:33,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 249 interpolants. [2022-02-19 16:18:33,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16920, Invalid=44832, Unknown=0, NotChecked=0, Total=61752 [2022-02-19 16:18:33,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:18:33,232 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:18:33,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 249 states, 249 states have (on average 3.3815261044176705) internal successors, (842), 249 states have internal predecessors, (842), 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) [2022-02-19 16:18:33,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:18:33,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:18:33,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:18:33,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 16:18:33,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 16:18:33,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:18:56,135 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6224 transitions and produced 5025 states. [2022-02-19 16:18:56,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:18:56,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:18:56,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:18:56,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 16:18:56,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 16:18:56,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 512 states. [2022-02-19 16:18:56,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-19 16:18:56,349 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 [2022-02-19 16:18:56,350 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:18:56,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:18:56,350 INFO L85 PathProgramCache]: Analyzing trace with hash -239918399, now seen corresponding path program 7 times [2022-02-19 16:18:56,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:18:56,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586075697] [2022-02-19 16:18:56,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:18:56,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:18:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:19:16,047 INFO L134 CoverageAnalysis]: Checked inductivity of 84425 backedges. 48177 proven. 36174 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-02-19 16:19:16,048 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:19:16,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586075697] [2022-02-19 16:19:16,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586075697] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:19:16,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016093077] [2022-02-19 16:19:16,048 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 16:19:16,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:19:16,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:19:16,050 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) [2022-02-19 16:19:16,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 16:19:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:19:16,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 2590 conjuncts, 340 conjunts are in the unsatisfiable core [2022-02-19 16:19:16,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:19:32,789 INFO L134 CoverageAnalysis]: Checked inductivity of 84425 backedges. 68330 proven. 15834 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-02-19 16:19:32,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:19:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 84425 backedges. 68330 proven. 15834 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-02-19 16:19:39,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016093077] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:19:39,326 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:19:39,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [294, 199, 199] total 575 [2022-02-19 16:19:39,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237992942] [2022-02-19 16:19:39,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:19:39,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 576 states [2022-02-19 16:19:39,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:19:39,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 576 interpolants. [2022-02-19 16:19:39,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93900, Invalid=237300, Unknown=0, NotChecked=0, Total=331200 [2022-02-19 16:19:39,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:19:39,354 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:19:39,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 576 states, 576 states have (on average 3.9809027777777777) internal successors, (2293), 575 states have internal predecessors, (2293), 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) [2022-02-19 16:19:39,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:19:39,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:19:39,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:19:39,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 16:19:39,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 16:19:39,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 512 states. [2022-02-19 16:19:39,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:21:13,143 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7997 transitions and produced 6405 states. [2022-02-19 16:21:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:21:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:21:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:21:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 16:21:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 16:21:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 512 states. [2022-02-19 16:21:13,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 535 states. [2022-02-19 16:21:13,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-19 16:21:13,366 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 [2022-02-19 16:21:13,371 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:21:13,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:21:13,371 INFO L85 PathProgramCache]: Analyzing trace with hash 481992479, now seen corresponding path program 8 times [2022-02-19 16:21:13,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:21:13,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106802910] [2022-02-19 16:21:13,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:21:13,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:21:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:21:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 145592 backedges. 74457 proven. 71061 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-02-19 16:21:45,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:21:45,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106802910] [2022-02-19 16:21:45,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106802910] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:21:45,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013832710] [2022-02-19 16:21:45,697 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 16:21:45,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:21:45,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:21:45,698 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) [2022-02-19 16:21:45,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 16:21:46,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 16:21:46,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:21:46,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 3427 conjuncts, 472 conjunts are in the unsatisfiable core [2022-02-19 16:21:46,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:22:12,124 INFO L134 CoverageAnalysis]: Checked inductivity of 145592 backedges. 99830 proven. 45501 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-02-19 16:22:12,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:22:17,513 INFO L134 CoverageAnalysis]: Checked inductivity of 145592 backedges. 99830 proven. 45501 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-02-19 16:22:17,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013832710] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:22:17,514 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:22:17,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [426, 244, 244] total 710 [2022-02-19 16:22:17,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387684659] [2022-02-19 16:22:17,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:22:17,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 711 states [2022-02-19 16:22:17,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:22:17,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 711 interpolants. [2022-02-19 16:22:17,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130683, Invalid=374127, Unknown=0, NotChecked=0, Total=504810 [2022-02-19 16:22:17,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:22:17,555 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:22:17,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 711 states, 711 states have (on average 3.7988748241912798) internal successors, (2701), 710 states have internal predecessors, (2701), 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) [2022-02-19 16:22:17,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:22:17,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:22:17,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:22:17,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 16:22:17,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 16:22:17,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 512 states. [2022-02-19 16:22:17,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 535 states. [2022-02-19 16:22:17,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:24:47,783 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9392 transitions and produced 7531 states. [2022-02-19 16:24:47,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:24:47,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:24:47,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:24:47,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 16:24:47,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 16:24:47,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 512 states. [2022-02-19 16:24:47,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 535 states. [2022-02-19 16:24:47,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 712 states. [2022-02-19 16:24:47,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-19 16:24:48,005 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 [2022-02-19 16:24:48,006 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:24:48,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:24:48,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1667363273, now seen corresponding path program 9 times [2022-02-19 16:24:48,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:24:48,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910014836] [2022-02-19 16:24:48,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:24:48,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:24:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:25:33,639 INFO L134 CoverageAnalysis]: Checked inductivity of 204452 backedges. 106812 proven. 97566 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-02-19 16:25:33,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:25:33,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910014836] [2022-02-19 16:25:33,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910014836] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:25:33,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787952984] [2022-02-19 16:25:33,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 16:25:33,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:25:33,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:25:33,641 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) [2022-02-19 16:25:33,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-19 16:25:33,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-02-19 16:25:33,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:25:33,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-19 16:25:33,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:25:35,566 INFO L134 CoverageAnalysis]: Checked inductivity of 204452 backedges. 1166 proven. 15 refuted. 0 times theorem prover too weak. 203271 trivial. 0 not checked. [2022-02-19 16:25:35,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:25:36,617 INFO L134 CoverageAnalysis]: Checked inductivity of 204452 backedges. 1166 proven. 15 refuted. 0 times theorem prover too weak. 203271 trivial. 0 not checked. [2022-02-19 16:25:36,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787952984] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:25:36,617 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:25:36,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [516, 8, 8] total 524 [2022-02-19 16:25:36,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800429972] [2022-02-19 16:25:36,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:25:36,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 524 states [2022-02-19 16:25:36,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:25:36,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 524 interpolants. [2022-02-19 16:25:36,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86528, Invalid=187524, Unknown=0, NotChecked=0, Total=274052 [2022-02-19 16:25:36,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:25:36,640 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:25:36,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 524 states, 524 states have (on average 2.9580152671755724) internal successors, (1550), 524 states have internal predecessors, (1550), 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) [2022-02-19 16:25:36,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:25:36,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:25:36,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:25:36,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 16:25:36,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 16:25:36,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 512 states. [2022-02-19 16:25:36,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 535 states. [2022-02-19 16:25:36,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 712 states. [2022-02-19 16:25:36,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:28:04,049 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 10464 transitions and produced 8440 states. [2022-02-19 16:28:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:28:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:28:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:28:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-19 16:28:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 16:28:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 512 states. [2022-02-19 16:28:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 535 states. [2022-02-19 16:28:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 712 states. [2022-02-19 16:28:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1059 states. [2022-02-19 16:28:04,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-19 16:28:04,263 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,SelfDestructingSolverStorable8 [2022-02-19 16:28:04,272 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 16:28:04,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:28:04,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2115466825, now seen corresponding path program 10 times [2022-02-19 16:28:04,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:28:04,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11177378] [2022-02-19 16:28:04,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:28:04,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:28:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:29:06,906 INFO L134 CoverageAnalysis]: Checked inductivity of 250431 backedges. 145390 proven. 104966 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-19 16:29:06,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:29:06,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11177378] [2022-02-19 16:29:06,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11177378] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:29:06,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830454579] [2022-02-19 16:29:06,907 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 16:29:06,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:29:06,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:29:06,908 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:29:06,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-19 16:29:07,561 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 16:29:07,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:29:07,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 4377 conjuncts, 611 conjunts are in the unsatisfiable core [2022-02-19 16:29:07,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:29:57,217 INFO L134 CoverageAnalysis]: Checked inductivity of 250431 backedges. 181233 proven. 68890 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-02-19 16:29:57,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:30:06,793 INFO L134 CoverageAnalysis]: Checked inductivity of 250431 backedges. 181233 proven. 68890 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-02-19 16:30:06,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830454579] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:30:06,794 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:30:06,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [566, 334, 334] total 981 [2022-02-19 16:30:06,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228592867] [2022-02-19 16:30:06,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:30:06,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 982 states [2022-02-19 16:30:06,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:30:06,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 982 interpolants. [2022-02-19 16:30:06,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260223, Invalid=703119, Unknown=0, NotChecked=0, Total=963342 [2022-02-19 16:30:06,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:30:06,861 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:30:06,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 982 states, 982 states have (on average 3.7179226069246436) internal successors, (3651), 981 states have internal predecessors, (3651), 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) [2022-02-19 16:30:06,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:30:06,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-19 16:30:06,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:30:06,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-19 16:30:06,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 16:30:06,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 512 states. [2022-02-19 16:30:06,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 535 states. [2022-02-19 16:30:06,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 712 states. [2022-02-19 16:30:06,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 1059 states. [2022-02-19 16:30:06,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-19 16:31:25,976 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 [2022-02-19 16:31:25,976 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 16:31:25,976 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 [2022-02-19 16:31:26,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-19 16:31:26,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-19 16:31:26,193 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-02-19 16:31:26,196 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-19 16:31:26,196 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-19 16:31:26,205 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-19 16:31:26,205 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-19 16:31:26,205 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-19 16:31:26,210 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-02-19 16:31:26,212 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 16:31:26,212 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 16:31:26,214 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 04:31:26 BasicIcfg [2022-02-19 16:31:26,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 16:31:26,215 INFO L158 Benchmark]: Toolchain (without parser) took 839791.07ms. Allocated memory was 175.1MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 134.4MB in the beginning and 373.7MB in the end (delta: -239.3MB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-02-19 16:31:26,215 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 175.1MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 16:31:26,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.54ms. Allocated memory is still 175.1MB. Free memory was 134.3MB in the beginning and 132.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 16:31:26,215 INFO L158 Benchmark]: Boogie Preprocessor took 22.25ms. Allocated memory is still 175.1MB. Free memory was 132.8MB in the beginning and 131.8MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 16:31:26,215 INFO L158 Benchmark]: RCFGBuilder took 303.94ms. Allocated memory is still 175.1MB. Free memory was 131.8MB in the beginning and 121.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-19 16:31:26,216 INFO L158 Benchmark]: TraceAbstraction took 839436.14ms. Allocated memory was 175.1MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 121.2MB in the beginning and 373.7MB in the end (delta: -252.5MB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-02-19 16:31:26,217 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 0.14ms. Allocated memory is still 175.1MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.54ms. Allocated memory is still 175.1MB. Free memory was 134.3MB in the beginning and 132.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.25ms. Allocated memory is still 175.1MB. Free memory was 132.8MB in the beginning and 131.8MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 303.94ms. Allocated memory is still 175.1MB. Free memory was 131.8MB in the beginning and 121.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 839436.14ms. Allocated memory was 175.1MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 121.2MB in the beginning and 373.7MB in the end (delta: -252.5MB). Peak memory consumption was 2.0GB. 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: 83]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 839.3s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 516.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3628, 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: 0.5s SsaConstructionTime, 11.8s SatisfiabilityAnalysisTime, 308.0s InterpolantComputationTime, 16329 NumberOfCodeBlocks, 14100 NumberOfCodeBlocksAsserted, 157 NumberOfCheckSat, 24123 ConstructedInterpolants, 0 QuantifiedInterpolants, 138271 SizeOfPredicates, 0 NumberOfNonLiveVariables, 14330 ConjunctsInSsa, 1831 ConjunctsInUnsatCore, 26 InterpolantComputations, 2 PerfectInterpolantSequences, 1739197/2377300 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