/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-NewStatesSleep-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/name-comparator-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-22 06:37:57,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-22 06:37:57,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-22 06:37:57,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-22 06:37:57,893 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-NewStatesSleep-NoLbe-Random521.epf [2021-08-22 06:37:57,920 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-22 06:37:57,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-22 06:37:57,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-22 06:37:57,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-22 06:37:57,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-22 06:37:57,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-22 06:37:57,923 INFO L138 SettingsManager]: * Use SBE=true [2021-08-22 06:37:57,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-22 06:37:57,923 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-22 06:37:57,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-22 06:37:57,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-22 06:37:57,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-22 06:37:57,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-22 06:37:57,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-22 06:37:57,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-22 06:37:57,924 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-22 06:37:57,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-22 06:37:57,925 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-22 06:37:57,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-22 06:37:57,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-22 06:37:57,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-22 06:37:57,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-22 06:37:57,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-22 06:37:57,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 06:37:57,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-22 06:37:57,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-22 06:37:57,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-22 06:37:57,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-22 06:37:57,926 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-08-22 06:37:57,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-22 06:37:57,926 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-22 06:37:57,926 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-22 06:37:57,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-22 06:37:57,926 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-08-22 06:37:57,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-22 06:37:57,926 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-22 06:37:58,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-22 06:37:58,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-22 06:37:58,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-22 06:37:58,200 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-22 06:37:58,201 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-22 06:37:58,201 INFO L432 ainManager$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 [2021-08-22 06:37:58,201 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/name-comparator-symm.wvr.bpl' [2021-08-22 06:37:58,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-22 06:37:58,220 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-22 06:37:58,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-22 06:37:58,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-22 06:37:58,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-22 06:37:58,230 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 22.08 06:37:58" (1/1) ... [2021-08-22 06:37:58,235 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 22.08 06:37:58" (1/1) ... [2021-08-22 06:37:58,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-22 06:37:58,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-22 06:37:58,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-22 06:37:58,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-22 06:37:58,247 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 22.08 06:37:58" (1/1) ... [2021-08-22 06:37:58,247 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 22.08 06:37:58" (1/1) ... [2021-08-22 06:37:58,257 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 22.08 06:37:58" (1/1) ... [2021-08-22 06:37:58,257 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 22.08 06:37:58" (1/1) ... [2021-08-22 06:37:58,265 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 22.08 06:37:58" (1/1) ... [2021-08-22 06:37:58,266 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 22.08 06:37:58" (1/1) ... [2021-08-22 06:37:58,267 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 22.08 06:37:58" (1/1) ... [2021-08-22 06:37:58,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-22 06:37:58,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-22 06:37:58,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-22 06:37:58,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-22 06:37:58,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 06:37:58" (1/1) ... [2021-08-22 06:37:58,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 06:37:58,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 06:37:58,306 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) [2021-08-22 06:37:58,337 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 [2021-08-22 06:37:58,365 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-22 06:37:58,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-22 06:37:58,366 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-22 06:37:58,366 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-22 06:37:58,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-22 06:37:58,366 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-22 06:37:58,366 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-22 06:37:58,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-22 06:37:58,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-22 06:37:58,367 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-22 06:37:58,749 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-22 06:37:58,749 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-08-22 06:37:58,750 INFO L202 PluginConnector]: Adding new model name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:37:58 BoogieIcfgContainer [2021-08-22 06:37:58,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-22 06:37:58,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-22 06:37:58,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-22 06:37:58,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-22 06:37:58,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 06:37:58" (1/2) ... [2021-08-22 06:37:58,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ddaa8e3 and model type name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:37:58, skipping insertion in model container [2021-08-22 06:37:58,754 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 22.08 06:37:58" (2/2) ... [2021-08-22 06:37:58,755 INFO L111 eAbstractionObserver]: Analyzing ICFG name-comparator-symm.wvr.bpl [2021-08-22 06:37:58,766 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-22 06:37:58,767 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-22 06:37:58,767 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-22 06:37:58,767 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-22 06:37:58,810 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-08-22 06:37:58,846 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-22 06:37:58,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 06:37:58,848 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) [2021-08-22 06:37:58,849 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 [2021-08-22 06:37:58,869 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-22 06:37:58,874 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 [2021-08-22 06:37:58,874 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-22 06:37:58,924 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-22 06:37:58,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 06:37:58,936 INFO L82 PathProgramCache]: Analyzing trace with hash 39554391, now seen corresponding path program 1 times [2021-08-22 06:37:58,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 06:37:58,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062113825] [2021-08-22 06:37:58,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 06:37:58,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 06:37:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:37:59,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:37:59,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 06:37:59,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062113825] [2021-08-22 06:37:59,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062113825] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 06:37:59,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 06:37:59,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-22 06:37:59,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073471321] [2021-08-22 06:37:59,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-22 06:37:59,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 06:37:59,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-22 06:37:59,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-22 06:37:59,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:37:59,154 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 06:37:59,155 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) [2021-08-22 06:37:59,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:37:59,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:37:59,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-22 06:37:59,200 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-22 06:37:59,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 06:37:59,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1936069119, now seen corresponding path program 1 times [2021-08-22 06:37:59,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 06:37:59,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123574903] [2021-08-22 06:37:59,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 06:37:59,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 06:37:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:37:59,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:37:59,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 06:37:59,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123574903] [2021-08-22 06:37:59,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123574903] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 06:37:59,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 06:37:59,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-22 06:37:59,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856026352] [2021-08-22 06:37:59,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-22 06:37:59,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 06:37:59,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-22 06:37:59,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-22 06:37:59,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:37:59,239 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 06:37:59,239 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) [2021-08-22 06:37:59,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:37:59,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:37:59,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:37:59,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:37:59,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-22 06:37:59,263 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-22 06:37:59,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 06:37:59,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1141745671, now seen corresponding path program 1 times [2021-08-22 06:37:59,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 06:37:59,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939113691] [2021-08-22 06:37:59,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 06:37:59,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 06:37:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:37:59,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:37:59,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 06:37:59,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939113691] [2021-08-22 06:37:59,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939113691] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:37:59,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110580668] [2021-08-22 06:37:59,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 06:37:59,467 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 06:37:59,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 06:37:59,468 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) [2021-08-22 06:37:59,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-22 06:37:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:37:59,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 27 conjunts are in the unsatisfiable core [2021-08-22 06:37:59,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 06:37:59,838 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 [2021-08-22 06:38:00,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:38:00,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110580668] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:00,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 06:38:00,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-22 06:38:00,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431844773] [2021-08-22 06:38:00,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-22 06:38:00,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 06:38:00,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-22 06:38:00,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-08-22 06:38:00,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:00,057 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 06:38:00,057 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) [2021-08-22 06:38:00,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:00,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:00,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:00,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:00,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:00,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:00,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-22 06:38:00,367 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 [2021-08-22 06:38:00,368 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-22 06:38:00,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 06:38:00,369 INFO L82 PathProgramCache]: Analyzing trace with hash 342774433, now seen corresponding path program 2 times [2021-08-22 06:38:00,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 06:38:00,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868817568] [2021-08-22 06:38:00,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 06:38:00,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 06:38:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:38:00,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:38:00,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 06:38:00,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868817568] [2021-08-22 06:38:00,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868817568] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:00,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846420581] [2021-08-22 06:38:00,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-22 06:38:00,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 06:38:00,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 06:38:00,473 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) [2021-08-22 06:38:00,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-22 06:38:00,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-22 06:38:00,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 06:38:00,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-22 06:38:00,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 06:38:00,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:38:00,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846420581] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:00,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 06:38:00,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-08-22 06:38:00,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065296135] [2021-08-22 06:38:00,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-22 06:38:00,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 06:38:00,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-22 06:38:00,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-08-22 06:38:00,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:00,697 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 06:38:00,697 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) [2021-08-22 06:38:00,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:00,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:00,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:00,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:00,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:00,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:00,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:00,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:00,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-22 06:38:00,986 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 [2021-08-22 06:38:00,986 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-22 06:38:00,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 06:38:00,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1005726615, now seen corresponding path program 3 times [2021-08-22 06:38:00,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 06:38:00,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793856027] [2021-08-22 06:38:00,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 06:38:00,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 06:38:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:38:01,185 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:38:01,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 06:38:01,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793856027] [2021-08-22 06:38:01,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793856027] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:01,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873106900] [2021-08-22 06:38:01,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-22 06:38:01,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 06:38:01,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 06:38:01,187 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) [2021-08-22 06:38:01,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-22 06:38:01,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-22 06:38:01,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 06:38:01,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-08-22 06:38:01,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 06:38:01,824 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-08-22 06:38:01,825 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 [2021-08-22 06:38:02,024 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:38:02,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873106900] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:02,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 06:38:02,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2021-08-22 06:38:02,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579120215] [2021-08-22 06:38:02,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-22 06:38:02,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 06:38:02,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-22 06:38:02,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-08-22 06:38:02,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:02,025 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 06:38:02,026 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) [2021-08-22 06:38:02,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:02,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:02,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:02,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:02,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:02,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-22 06:38:02,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-22 06:38:02,335 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 [2021-08-22 06:38:02,336 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-22 06:38:02,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 06:38:02,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1700404287, now seen corresponding path program 4 times [2021-08-22 06:38:02,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 06:38:02,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725918328] [2021-08-22 06:38:02,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 06:38:02,336 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 06:38:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:38:02,423 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:38:02,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 06:38:02,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725918328] [2021-08-22 06:38:02,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725918328] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:02,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078585854] [2021-08-22 06:38:02,424 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-22 06:38:02,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 06:38:02,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 06:38:02,424 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) [2021-08-22 06:38:02,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-22 06:38:02,557 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-22 06:38:02,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 06:38:02,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-22 06:38:02,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 06:38:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:38:02,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078585854] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:02,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 06:38:02,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-08-22 06:38:02,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404206430] [2021-08-22 06:38:02,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-22 06:38:02,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 06:38:02,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-22 06:38:02,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-22 06:38:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:02,667 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 06:38:02,667 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) [2021-08-22 06:38:02,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:02,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:02,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:02,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:02,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-22 06:38:02,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:02,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:02,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:02,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:02,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:02,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-22 06:38:02,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:02,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-08-22 06:38:02,958 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 [2021-08-22 06:38:02,958 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-22 06:38:02,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 06:38:02,958 INFO L82 PathProgramCache]: Analyzing trace with hash 142579129, now seen corresponding path program 5 times [2021-08-22 06:38:02,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 06:38:02,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928315185] [2021-08-22 06:38:02,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 06:38:02,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 06:38:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:38:03,330 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:38:03,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 06:38:03,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928315185] [2021-08-22 06:38:03,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928315185] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:03,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809774618] [2021-08-22 06:38:03,330 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-22 06:38:03,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 06:38:03,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 06:38:03,331 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) [2021-08-22 06:38:03,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-22 06:38:03,473 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-08-22 06:38:03,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 06:38:03,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 33 conjunts are in the unsatisfiable core [2021-08-22 06:38:03,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 06:38:04,168 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-08-22 06:38:04,169 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 [2021-08-22 06:38:04,407 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:38:04,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809774618] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:04,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 06:38:04,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2021-08-22 06:38:04,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814531690] [2021-08-22 06:38:04,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-22 06:38:04,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 06:38:04,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-22 06:38:04,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-08-22 06:38:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:04,408 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 06:38:04,409 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) [2021-08-22 06:38:04,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:04,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:04,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:04,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:04,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-22 06:38:04,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:04,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-22 06:38:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-22 06:38:04,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-22 06:38:04,740 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 [2021-08-22 06:38:04,741 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-22 06:38:04,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 06:38:04,741 INFO L82 PathProgramCache]: Analyzing trace with hash 2007891041, now seen corresponding path program 6 times [2021-08-22 06:38:04,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 06:38:04,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574050490] [2021-08-22 06:38:04,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 06:38:04,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 06:38:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:38:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-22 06:38:04,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 06:38:04,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574050490] [2021-08-22 06:38:04,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574050490] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 06:38:04,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 06:38:04,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-22 06:38:04,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364243560] [2021-08-22 06:38:04,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-22 06:38:04,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 06:38:04,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-22 06:38:04,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-22 06:38:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:04,784 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 06:38:04,785 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) [2021-08-22 06:38:04,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:04,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:04,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:04,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:04,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-22 06:38:04,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:04,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-22 06:38:04,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:04,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:04,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:04,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:04,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:04,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-22 06:38:04,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:04,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:04,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:04,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-22 06:38:04,990 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-22 06:38:04,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 06:38:04,990 INFO L82 PathProgramCache]: Analyzing trace with hash -905360513, now seen corresponding path program 7 times [2021-08-22 06:38:04,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 06:38:04,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513553609] [2021-08-22 06:38:04,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 06:38:04,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 06:38:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:38:05,022 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-22 06:38:05,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 06:38:05,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513553609] [2021-08-22 06:38:05,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513553609] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:05,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678707743] [2021-08-22 06:38:05,022 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-22 06:38:05,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 06:38:05,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 06:38:05,023 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) [2021-08-22 06:38:05,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-22 06:38:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:38:05,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-22 06:38:05,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 06:38:05,264 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-22 06:38:05,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678707743] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 06:38:05,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-22 06:38:05,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-08-22 06:38:05,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584931823] [2021-08-22 06:38:05,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-22 06:38:05,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 06:38:05,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-22 06:38:05,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-22 06:38:05,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:05,266 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 06:38:05,266 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) [2021-08-22 06:38:05,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:05,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:05,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:05,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:05,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-22 06:38:05,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:05,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:05,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:05,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:05,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:05,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:05,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:05,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:05,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:05,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:05,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-22 06:38:05,627 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 [2021-08-22 06:38:05,628 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-22 06:38:05,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 06:38:05,628 INFO L82 PathProgramCache]: Analyzing trace with hash 82407777, now seen corresponding path program 8 times [2021-08-22 06:38:05,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 06:38:05,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435220203] [2021-08-22 06:38:05,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 06:38:05,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 06:38:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:38:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:38:05,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 06:38:05,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435220203] [2021-08-22 06:38:05,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435220203] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:05,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951459732] [2021-08-22 06:38:05,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-22 06:38:05,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 06:38:05,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 06:38:05,710 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) [2021-08-22 06:38:05,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-22 06:38:05,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-22 06:38:05,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 06:38:05,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-22 06:38:05,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 06:38:06,013 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 [2021-08-22 06:38:06,040 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 06:38:06,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951459732] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:06,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 06:38:06,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-08-22 06:38:06,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689928360] [2021-08-22 06:38:06,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-22 06:38:06,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 06:38:06,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-22 06:38:06,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-08-22 06:38:06,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:06,041 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 06:38:06,042 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) [2021-08-22 06:38:06,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:06,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:06,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:06,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:06,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:06,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:06,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:06,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:06,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:06,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:06,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:06,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:06,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:06,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:06,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:06,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:06,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:06,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:06,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:06,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:06,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-22 06:38:06,727 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 [2021-08-22 06:38:06,727 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-22 06:38:06,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 06:38:06,728 INFO L82 PathProgramCache]: Analyzing trace with hash -612269895, now seen corresponding path program 9 times [2021-08-22 06:38:06,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 06:38:06,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753785867] [2021-08-22 06:38:06,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 06:38:06,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 06:38:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:38:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 06:38:06,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 06:38:06,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753785867] [2021-08-22 06:38:06,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753785867] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:06,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081600157] [2021-08-22 06:38:06,803 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-22 06:38:06,803 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 06:38:06,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 06:38:06,804 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) [2021-08-22 06:38:06,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-22 06:38:06,969 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-08-22 06:38:06,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 06:38:06,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-22 06:38:06,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 06:38:07,105 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 [2021-08-22 06:38:07,136 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 06:38:07,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081600157] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 06:38:07,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 06:38:07,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-08-22 06:38:07,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778886688] [2021-08-22 06:38:07,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-22 06:38:07,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 06:38:07,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-22 06:38:07,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-22 06:38:07,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:07,137 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 06:38:07,137 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) [2021-08-22 06:38:07,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-22 06:38:07,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:07,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:07,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:07,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:07,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:07,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:07,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:07,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:07,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:07,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:07,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:07,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:07,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:07,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:07,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:07,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-22 06:38:07,580 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 [2021-08-22 06:38:07,580 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-22 06:38:07,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 06:38:07,580 INFO L82 PathProgramCache]: Analyzing trace with hash 612247137, now seen corresponding path program 1 times [2021-08-22 06:38:07,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 06:38:07,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575221089] [2021-08-22 06:38:07,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 06:38:07,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 06:38:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 06:38:07,617 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-22 06:38:07,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 06:38:07,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575221089] [2021-08-22 06:38:07,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575221089] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 06:38:07,617 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 06:38:07,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-22 06:38:07,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73381947] [2021-08-22 06:38:07,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-22 06:38:07,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 06:38:07,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-22 06:38:07,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-22 06:38:07,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:07,618 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 06:38:07,618 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) [2021-08-22 06:38:07,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:07,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:07,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:07,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:07,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:07,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:07,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:07,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:07,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:07,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:07,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:07,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 06:38:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-22 06:38:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 06:38:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 06:38:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-22 06:38:07,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 06:38:07,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-22 06:38:07,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-22 06:38:07,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-22 06:38:07,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-22 06:38:07,658 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-22 06:38:07,658 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-22 06:38:07,659 INFO L202 PluginConnector]: Adding new model name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:38:07 BasicIcfg [2021-08-22 06:38:07,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-22 06:38:07,660 INFO L168 Benchmark]: Toolchain (without parser) took 9439.35 ms. Allocated memory was 210.8 MB in the beginning and 447.7 MB in the end (delta: 237.0 MB). Free memory was 190.7 MB in the beginning and 399.9 MB in the end (delta: -209.2 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. [2021-08-22 06:38:07,660 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 210.8 MB. Free memory was 191.9 MB in the beginning and 191.8 MB in the end (delta: 95.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-22 06:38:07,660 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.00 ms. Allocated memory is still 210.8 MB. Free memory was 190.6 MB in the beginning and 189.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-22 06:38:07,660 INFO L168 Benchmark]: Boogie Preprocessor took 26.26 ms. Allocated memory is still 210.8 MB. Free memory was 189.1 MB in the beginning and 188.1 MB in the end (delta: 935.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-22 06:38:07,660 INFO L168 Benchmark]: RCFGBuilder took 482.01 ms. Allocated memory is still 210.8 MB. Free memory was 188.0 MB in the beginning and 190.1 MB in the end (delta: -2.0 MB). Peak memory consumption was 21.8 MB. Max. memory is 8.0 GB. [2021-08-22 06:38:07,660 INFO L168 Benchmark]: TraceAbstraction took 8907.38 ms. Allocated memory was 210.8 MB in the beginning and 447.7 MB in the end (delta: 237.0 MB). Free memory was 189.7 MB in the beginning and 399.9 MB in the end (delta: -210.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. [2021-08-22 06:38:07,661 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 0.10 ms. Allocated memory is still 210.8 MB. Free memory was 191.9 MB in the beginning and 191.8 MB in the end (delta: 95.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 20.00 ms. Allocated memory is still 210.8 MB. Free memory was 190.6 MB in the beginning and 189.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.26 ms. Allocated memory is still 210.8 MB. Free memory was 189.1 MB in the beginning and 188.1 MB in the end (delta: 935.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 482.01 ms. Allocated memory is still 210.8 MB. Free memory was 188.0 MB in the beginning and 190.1 MB in the end (delta: -2.0 MB). Peak memory consumption was 21.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8907.38 ms. Allocated memory was 210.8 MB in the beginning and 447.7 MB in the end (delta: 237.0 MB). Free memory was 189.7 MB in the beginning and 399.9 MB in the end (delta: -210.2 MB). Peak memory consumption was 27.0 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: 594, positive: 484, positive conditional: 484, positive unconditional: 0, negative: 110, negative conditional: 110, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 484, positive: 484, positive conditional: 484, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 484, positive: 484, positive conditional: 484, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 484, positive: 484, positive conditional: 444, positive unconditional: 40, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 484, positive: 484, positive conditional: 364, positive unconditional: 120, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 484, positive: 484, positive conditional: 364, positive unconditional: 120, 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: 78, positive: 78, positive conditional: 64, positive unconditional: 14, 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: 78, positive: 78, positive conditional: 0, positive unconditional: 78, 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: 484, positive: 406, positive conditional: 300, positive unconditional: 106, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 78, unknown conditional: 64, unknown unconditional: 14] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 78, Positive conditional cache size: 64, Positive unconditional cache size: 14, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 80, Maximal queried relation: 0, Independence queries for same thread: 110 - 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 with 1 thread instances CFG has 5 procedures, 27 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 8812.9ms, OverallIterations: 12, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.3ms, PartialOrderReductionTime: 1644.5ms, 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: 58.3ms SsaConstructionTime, 228.6ms SatisfiabilityAnalysisTime, 4025.6ms 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! [2021-08-22 06:38:07,682 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 [2021-08-22 06:38:07,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...