/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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/name-comparator-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 03:53:02,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 03:53:02,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 03:53:02,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-25 03:53:02,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-25 03:53:02,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-25 03:53:02,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-25 03:53:02,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-25 03:53:02,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-25 03:53:02,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-25 03:53:02,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-25 03:53:02,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-25 03:53:02,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-25 03:53:02,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-25 03:53:02,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-25 03:53:02,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-25 03:53:02,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-25 03:53:02,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-25 03:53:02,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-25 03:53:02,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-25 03:53:02,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-25 03:53:02,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-25 03:53:02,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-25 03:53:02,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-25 03:53:02,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-25 03:53:02,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-25 03:53:02,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-25 03:53:02,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-25 03:53:02,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-25 03:53:02,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-25 03:53:02,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-25 03:53:02,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-25 03:53:02,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-25 03:53:02,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-25 03:53:02,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-25 03:53:02,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-25 03:53:02,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-25 03:53:02,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-25 03:53:02,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-25 03:53:02,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-25 03:53:02,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-25 03:53:02,146 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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf [2021-10-25 03:53:02,166 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 03:53:02,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 03:53:02,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 03:53:02,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 03:53:02,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 03:53:02,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 03:53:02,174 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 03:53:02,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 03:53:02,174 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 03:53:02,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 03:53:02,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 03:53:02,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 03:53:02,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 03:53:02,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 03:53:02,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 03:53:02,175 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 03:53:02,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 03:53:02,175 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 03:53:02,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 03:53:02,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 03:53:02,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 03:53:02,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 03:53:02,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 03:53:02,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 03:53:02,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 03:53:02,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 03:53:02,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 03:53:02,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 03:53:02,177 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-25 03:53:02,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 03:53:02,177 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 03:53:02,177 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 03:53:02,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 03:53:02,177 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 03:53:02,177 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 03:53:02,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 03:53:02,177 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 [2021-10-25 03:53:02,178 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 03:53:02,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 03:53:02,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 03:53:02,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 03:53:02,365 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-25 03:53:02,366 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-25 03:53:02,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/name-comparator-symm.wvr.bpl [2021-10-25 03:53:02,366 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/name-comparator-symm.wvr.bpl' [2021-10-25 03:53:02,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 03:53:02,385 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-25 03:53:02,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 03:53:02,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 03:53:02,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 03:53:02,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 03:53:02" (1/1) ... [2021-10-25 03:53:02,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 03:53:02" (1/1) ... [2021-10-25 03:53:02,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 03:53:02,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 03:53:02,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 03:53:02,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 03:53:02,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 03:53:02" (1/1) ... [2021-10-25 03:53:02,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 03:53:02" (1/1) ... [2021-10-25 03:53:02,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 03:53:02" (1/1) ... [2021-10-25 03:53:02,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 03:53:02" (1/1) ... [2021-10-25 03:53:02,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 03:53:02" (1/1) ... [2021-10-25 03:53:02,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 03:53:02" (1/1) ... [2021-10-25 03:53:02,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 03:53:02" (1/1) ... [2021-10-25 03:53:02,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 03:53:02,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 03:53:02,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 03:53:02,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 03:53:02,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 03:53:02" (1/1) ... [2021-10-25 03:53:02,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 03:53:02,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:53:02,441 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) [2021-10-25 03:53:02,447 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 [2021-10-25 03:53:02,466 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-25 03:53:02,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-25 03:53:02,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-25 03:53:02,467 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-25 03:53:02,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-25 03:53:02,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-25 03:53:02,467 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-25 03:53:02,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 03:53:02,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 03:53:02,468 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 03:53:02,730 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 03:53:02,730 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-10-25 03:53:02,732 INFO L202 PluginConnector]: Adding new model name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 03:53:02 BoogieIcfgContainer [2021-10-25 03:53:02,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 03:53:02,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 03:53:02,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 03:53:02,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 03:53:02,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 03:53:02" (1/2) ... [2021-10-25 03:53:02,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4131d9e2 and model type name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 03:53:02, skipping insertion in model container [2021-10-25 03:53:02,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 03:53:02" (2/2) ... [2021-10-25 03:53:02,757 INFO L111 eAbstractionObserver]: Analyzing ICFG name-comparator-symm.wvr.bpl [2021-10-25 03:53:02,761 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 03:53:02,761 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 03:53:02,761 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 03:53:02,761 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 03:53:02,811 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-25 03:53:02,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 03:53:02,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:53:02,849 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) [2021-10-25 03:53:02,851 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 [2021-10-25 03:53:02,870 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 03:53:02,874 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, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-25 03:53:02,874 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-25 03:53:02,918 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 03:53:02,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:53:02,922 INFO L82 PathProgramCache]: Analyzing trace with hash 145908261, now seen corresponding path program 1 times [2021-10-25 03:53:02,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:53:02,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324368603] [2021-10-25 03:53:02,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:53:02,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:53:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:03,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:03,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:53:03,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324368603] [2021-10-25 03:53:03,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324368603] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 03:53:03,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 03:53:03,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-25 03:53:03,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129673525] [2021-10-25 03:53:03,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-25 03:53:03,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:53:03,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-25 03:53:03,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-25 03:53:03,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:03,119 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:53:03,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-10-25 03:53:03,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:03,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:03,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-25 03:53:03,168 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 03:53:03,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:53:03,169 INFO L82 PathProgramCache]: Analyzing trace with hash 2042422989, now seen corresponding path program 1 times [2021-10-25 03:53:03,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:53:03,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045387053] [2021-10-25 03:53:03,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:53:03,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:53:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:03,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:03,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:53:03,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045387053] [2021-10-25 03:53:03,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045387053] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 03:53:03,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 03:53:03,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-25 03:53:03,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272068979] [2021-10-25 03:53:03,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-25 03:53:03,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:53:03,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-25 03:53:03,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-25 03:53:03,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:03,257 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:53:03,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-10-25 03:53:03,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:03,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:03,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:03,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:03,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-25 03:53:03,299 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 03:53:03,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:53:03,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1035391801, now seen corresponding path program 1 times [2021-10-25 03:53:03,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:53:03,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896066519] [2021-10-25 03:53:03,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:53:03,300 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:53:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:03,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:03,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:53:03,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896066519] [2021-10-25 03:53:03,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896066519] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:03,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756463143] [2021-10-25 03:53:03,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:53:03,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:53:03,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:53:03,552 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) [2021-10-25 03:53:03,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-25 03:53:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:03,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-25 03:53:03,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 03:53:04,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 108 [2021-10-25 03:53:04,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:04,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756463143] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:04,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 03:53:04,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-25 03:53:04,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751140427] [2021-10-25 03:53:04,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-25 03:53:04,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:53:04,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-25 03:53:04,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-10-25 03:53:04,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:04,254 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:53:04,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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) [2021-10-25 03:53:04,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:04,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:04,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:04,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:04,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:04,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:04,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-25 03:53:04,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-25 03:53:04,571 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 03:53:04,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:53:04,572 INFO L82 PathProgramCache]: Analyzing trace with hash 449128303, now seen corresponding path program 2 times [2021-10-25 03:53:04,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:53:04,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527964508] [2021-10-25 03:53:04,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:53:04,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:53:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:04,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:04,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:53:04,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527964508] [2021-10-25 03:53:04,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527964508] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:04,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491937698] [2021-10-25 03:53:04,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 03:53:04,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:53:04,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:53:04,683 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) [2021-10-25 03:53:04,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-25 03:53:04,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 03:53:04,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 03:53:04,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-25 03:53:04,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 03:53:04,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:04,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491937698] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:04,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 03:53:04,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-10-25 03:53:04,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821920914] [2021-10-25 03:53:04,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-25 03:53:04,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:53:04,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-25 03:53:04,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-10-25 03:53:04,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:04,942 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:53:04,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 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) [2021-10-25 03:53:04,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:04,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:04,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:04,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:05,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:05,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-25 03:53:05,246 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 [2021-10-25 03:53:05,246 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 03:53:05,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:53:05,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1112080485, now seen corresponding path program 3 times [2021-10-25 03:53:05,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:53:05,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480581982] [2021-10-25 03:53:05,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:53:05,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:53:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:05,507 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:05,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:53:05,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480581982] [2021-10-25 03:53:05,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480581982] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:05,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752722411] [2021-10-25 03:53:05,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 03:53:05,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:53:05,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:53:05,509 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) [2021-10-25 03:53:05,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-25 03:53:05,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-25 03:53:05,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 03:53:05,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-25 03:53:05,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 03:53:06,243 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-25 03:53:06,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 137 [2021-10-25 03:53:06,463 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:06,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752722411] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:06,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 03:53:06,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2021-10-25 03:53:06,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425972309] [2021-10-25 03:53:06,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-25 03:53:06,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:53:06,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-25 03:53:06,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-10-25 03:53:06,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:06,465 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:53:06,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 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) [2021-10-25 03:53:06,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:06,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:06,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:06,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:06,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:06,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:06,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:06,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:06,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:06,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 03:53:06,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-25 03:53:06,808 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 [2021-10-25 03:53:06,808 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 03:53:06,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:53:06,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1806758157, now seen corresponding path program 4 times [2021-10-25 03:53:06,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:53:06,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43786877] [2021-10-25 03:53:06,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:53:06,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:53:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:06,906 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:06,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:53:06,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43786877] [2021-10-25 03:53:06,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43786877] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:06,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185922092] [2021-10-25 03:53:06,907 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-25 03:53:06,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:53:06,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:53:06,908 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) [2021-10-25 03:53:06,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-25 03:53:07,057 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-25 03:53:07,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 03:53:07,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-25 03:53:07,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 03:53:07,178 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:07,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185922092] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:07,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 03:53:07,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-25 03:53:07,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488345964] [2021-10-25 03:53:07,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-25 03:53:07,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:53:07,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-25 03:53:07,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-25 03:53:07,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:07,180 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:53:07,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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) [2021-10-25 03:53:07,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:07,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:07,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:07,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:07,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 03:53:07,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:07,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:07,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:07,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:07,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:07,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 03:53:07,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:07,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-25 03:53:07,497 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 [2021-10-25 03:53:07,497 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 03:53:07,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:53:07,497 INFO L82 PathProgramCache]: Analyzing trace with hash 248932999, now seen corresponding path program 5 times [2021-10-25 03:53:07,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:53:07,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384884545] [2021-10-25 03:53:07,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:53:07,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:53:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:07,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:53:07,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384884545] [2021-10-25 03:53:07,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384884545] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:07,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690562331] [2021-10-25 03:53:07,926 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-25 03:53:07,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:53:07,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:53:07,927 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) [2021-10-25 03:53:07,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-25 03:53:08,088 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-25 03:53:08,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 03:53:08,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-25 03:53:08,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 03:53:08,945 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-25 03:53:08,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 178 treesize of output 147 [2021-10-25 03:53:09,215 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:09,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690562331] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:09,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 03:53:09,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2021-10-25 03:53:09,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694661725] [2021-10-25 03:53:09,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-25 03:53:09,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:53:09,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-25 03:53:09,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-10-25 03:53:09,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:09,217 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:53:09,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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) [2021-10-25 03:53:09,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:09,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:09,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:09,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:09,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 03:53:09,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:09,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 03:53:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 03:53:09,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-25 03:53:09,568 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 [2021-10-25 03:53:09,568 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 03:53:09,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:53:09,568 INFO L82 PathProgramCache]: Analyzing trace with hash 2114244911, now seen corresponding path program 6 times [2021-10-25 03:53:09,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:53:09,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286949589] [2021-10-25 03:53:09,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:53:09,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:53:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:09,608 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-25 03:53:09,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:53:09,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286949589] [2021-10-25 03:53:09,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286949589] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 03:53:09,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 03:53:09,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-25 03:53:09,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284598097] [2021-10-25 03:53:09,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-25 03:53:09,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:53:09,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-25 03:53:09,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-25 03:53:09,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:09,610 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:53:09,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-10-25 03:53:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 03:53:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 03:53:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:09,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-25 03:53:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:09,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:09,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:09,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-25 03:53:09,844 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 03:53:09,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:53:09,844 INFO L82 PathProgramCache]: Analyzing trace with hash -799006643, now seen corresponding path program 7 times [2021-10-25 03:53:09,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:53:09,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599270665] [2021-10-25 03:53:09,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:53:09,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:53:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:09,875 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-25 03:53:09,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:53:09,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599270665] [2021-10-25 03:53:09,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599270665] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:09,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053279645] [2021-10-25 03:53:09,875 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-25 03:53:09,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:53:09,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:53:09,876 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) [2021-10-25 03:53:09,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-25 03:53:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:10,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-25 03:53:10,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 03:53:10,155 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-25 03:53:10,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053279645] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 03:53:10,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-25 03:53:10,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-10-25 03:53:10,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14305285] [2021-10-25 03:53:10,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-25 03:53:10,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:53:10,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-25 03:53:10,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-25 03:53:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:10,157 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:53:10,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-10-25 03:53:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-25 03:53:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:10,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:10,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:10,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:10,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-25 03:53:10,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:53:10,547 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 03:53:10,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:53:10,547 INFO L82 PathProgramCache]: Analyzing trace with hash 188761647, now seen corresponding path program 8 times [2021-10-25 03:53:10,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:53:10,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800383474] [2021-10-25 03:53:10,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:53:10,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:53:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:10,681 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:10,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:53:10,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800383474] [2021-10-25 03:53:10,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800383474] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:10,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995808667] [2021-10-25 03:53:10,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 03:53:10,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:53:10,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:53:10,684 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) [2021-10-25 03:53:10,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-25 03:53:10,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 03:53:10,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 03:53:10,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-25 03:53:10,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 03:53:11,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2021-10-25 03:53:11,055 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 03:53:11,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995808667] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:11,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 03:53:11,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-25 03:53:11,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020549418] [2021-10-25 03:53:11,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-25 03:53:11,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:53:11,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-25 03:53:11,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-25 03:53:11,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:11,056 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:53:11,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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) [2021-10-25 03:53:11,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:11,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:11,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:11,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:11,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:11,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:11,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:11,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:11,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:11,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:11,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:11,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:11,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:11,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:11,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-25 03:53:11,715 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,SelfDestructingSolverStorable9 [2021-10-25 03:53:11,716 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 03:53:11,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:53:11,716 INFO L82 PathProgramCache]: Analyzing trace with hash -505916025, now seen corresponding path program 9 times [2021-10-25 03:53:11,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:53:11,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349613538] [2021-10-25 03:53:11,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:53:11,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:53:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:11,771 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 03:53:11,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:53:11,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349613538] [2021-10-25 03:53:11,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349613538] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:11,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100419539] [2021-10-25 03:53:11,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 03:53:11,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:53:11,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 03:53:11,773 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) [2021-10-25 03:53:11,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-25 03:53:11,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-25 03:53:11,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 03:53:11,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-25 03:53:11,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 03:53:12,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2021-10-25 03:53:12,133 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 03:53:12,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100419539] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 03:53:12,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 03:53:12,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-10-25 03:53:12,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964608945] [2021-10-25 03:53:12,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-25 03:53:12,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:53:12,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-25 03:53:12,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-25 03:53:12,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:12,135 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:53:12,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 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) [2021-10-25 03:53:12,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 03:53:12,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:12,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:12,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:12,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:12,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:12,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:12,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:12,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:12,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:12,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:12,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:12,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:12,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:12,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:12,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:12,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:12,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:12,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:12,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:12,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:12,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:12,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-25 03:53:12,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 03:53:12,560 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 03:53:12,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 03:53:12,560 INFO L82 PathProgramCache]: Analyzing trace with hash 718601007, now seen corresponding path program 1 times [2021-10-25 03:53:12,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 03:53:12,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877999646] [2021-10-25 03:53:12,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 03:53:12,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 03:53:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 03:53:12,597 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-25 03:53:12,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 03:53:12,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877999646] [2021-10-25 03:53:12,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877999646] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 03:53:12,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 03:53:12,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-25 03:53:12,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352585516] [2021-10-25 03:53:12,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-25 03:53:12,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 03:53:12,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-25 03:53:12,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-25 03:53:12,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:12,598 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 03:53:12,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-10-25 03:53:12,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:12,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:12,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:12,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:12,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:12,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:12,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:12,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:12,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:12,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:12,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:12,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 03:53:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 03:53:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 03:53:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 03:53:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 03:53:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 03:53:12,614 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-25 03:53:12,615 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-25 03:53:12,615 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-25 03:53:12,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-25 03:53:12,620 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-25 03:53:12,620 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-25 03:53:12,622 INFO L202 PluginConnector]: Adding new model name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 03:53:12 BasicIcfg [2021-10-25 03:53:12,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-25 03:53:12,623 INFO L168 Benchmark]: Toolchain (without parser) took 10237.90 ms. Allocated memory was 204.5 MB in the beginning and 438.3 MB in the end (delta: 233.8 MB). Free memory was 164.5 MB in the beginning and 395.1 MB in the end (delta: -230.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2021-10-25 03:53:12,623 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 204.5 MB. Free memory is still 165.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 03:53:12,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.64 ms. Allocated memory is still 204.5 MB. Free memory was 164.4 MB in the beginning and 162.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-25 03:53:12,623 INFO L168 Benchmark]: Boogie Preprocessor took 11.42 ms. Allocated memory is still 204.5 MB. Free memory was 162.8 MB in the beginning and 161.9 MB in the end (delta: 899.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-25 03:53:12,623 INFO L168 Benchmark]: RCFGBuilder took 311.86 ms. Allocated memory is still 204.5 MB. Free memory was 161.8 MB in the beginning and 174.6 MB in the end (delta: -12.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 8.0 GB. [2021-10-25 03:53:12,624 INFO L168 Benchmark]: TraceAbstraction took 9888.25 ms. Allocated memory was 204.5 MB in the beginning and 438.3 MB in the end (delta: 233.8 MB). Free memory was 174.1 MB in the beginning and 395.1 MB in the end (delta: -221.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 8.0 GB. [2021-10-25 03:53:12,633 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 0.11 ms. Allocated memory is still 204.5 MB. Free memory is still 165.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.64 ms. Allocated memory is still 204.5 MB. Free memory was 164.4 MB in the beginning and 162.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.42 ms. Allocated memory is still 204.5 MB. Free memory was 162.8 MB in the beginning and 161.9 MB in the end (delta: 899.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 311.86 ms. Allocated memory is still 204.5 MB. Free memory was 161.8 MB in the beginning and 174.6 MB in the end (delta: -12.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9888.25 ms. Allocated memory was 204.5 MB in the beginning and 438.3 MB in the end (delta: 233.8 MB). Free memory was 174.1 MB in the beginning and 395.1 MB in the end (delta: -221.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 377, positive: 291, positive conditional: 228, positive unconditional: 63, negative: 86, negative conditional: 86, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 291, positive: 291, positive conditional: 0, positive unconditional: 291, 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: 63, positive: 63, positive conditional: 0, positive unconditional: 63, 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: 63, positive: 63, positive conditional: 0, positive unconditional: 63, 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: 291, positive: 228, positive conditional: 0, positive unconditional: 228, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 63, unknown conditional: 0, unknown unconditional: 63] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 86 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 14, Number of persistent set computation: 12, Number of trivial persistent sets: 6, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 377, positive: 291, positive conditional: 228, positive unconditional: 63, negative: 86, negative conditional: 86, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 291, positive: 291, positive conditional: 0, positive unconditional: 291, 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: 63, positive: 63, positive conditional: 0, positive unconditional: 63, 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: 63, positive: 63, positive conditional: 0, positive unconditional: 63, 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: 291, positive: 228, positive conditional: 0, positive unconditional: 228, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 63, unknown conditional: 0, unknown unconditional: 63] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 86 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 81]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 27 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 9782.6ms, OverallIterations: 12, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.6ms, PartialOrderReductionTime: 1738.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 63.1ms SsaConstructionTime, 220.8ms SatisfiabilityAnalysisTime, 4713.7ms InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 303 ConstructedInterpolants, 9 QuantifiedInterpolants, 2756 SizeOfPredicates, 55 NumberOfNonLiveVariables, 648 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 72/153 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-25 03:53:12,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-25 03:53:12,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...