/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-flipped-dist.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-22 01:09:40,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-22 01:09:40,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-22 01:09:40,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-22 01:09:40,560 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-Lockstep.epf [2021-08-22 01:09:40,597 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-22 01:09:40,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-22 01:09:40,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-22 01:09:40,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-22 01:09:40,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-22 01:09:40,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-22 01:09:40,601 INFO L138 SettingsManager]: * Use SBE=true [2021-08-22 01:09:40,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-22 01:09:40,602 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-22 01:09:40,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-22 01:09:40,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-22 01:09:40,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-22 01:09:40,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-22 01:09:40,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-22 01:09:40,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-22 01:09:40,603 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-22 01:09:40,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-22 01:09:40,603 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-22 01:09:40,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-22 01:09:40,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-22 01:09:40,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-22 01:09:40,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-22 01:09:40,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-22 01:09:40,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 01:09:40,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-22 01:09:40,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-22 01:09:40,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-22 01:09:40,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-22 01:09:40,605 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-08-22 01:09:40,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-22 01:09:40,605 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-22 01:09:40,605 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-22 01:09:40,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-22 01:09:40,606 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-08-22 01:09:40,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-22 01:09:40,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-22 01:09:40,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-22 01:09:40,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-22 01:09:40,933 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-22 01:09:40,934 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-22 01:09:40,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-flipped-dist.wvr.bpl [2021-08-22 01:09:40,935 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-flipped-dist.wvr.bpl' [2021-08-22 01:09:40,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-22 01:09:40,958 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-22 01:09:40,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-22 01:09:40,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-22 01:09:40,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-22 01:09:40,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 01:09:40" (1/1) ... [2021-08-22 01:09:40,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 01:09:40" (1/1) ... [2021-08-22 01:09:40,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-22 01:09:40,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-22 01:09:40,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-22 01:09:40,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-22 01:09:40,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 01:09:40" (1/1) ... [2021-08-22 01:09:40,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 01:09:40" (1/1) ... [2021-08-22 01:09:40,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 01:09:40" (1/1) ... [2021-08-22 01:09:40,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 01:09:40" (1/1) ... [2021-08-22 01:09:40,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 01:09:40" (1/1) ... [2021-08-22 01:09:41,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 01:09:40" (1/1) ... [2021-08-22 01:09:41,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 01:09:40" (1/1) ... [2021-08-22 01:09:41,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-22 01:09:41,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-22 01:09:41,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-22 01:09:41,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-22 01:09:41,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 01:09:40" (1/1) ... [2021-08-22 01:09:41,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 01:09:41,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 01:09:41,034 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 01:09:41,048 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 01:09:41,079 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-22 01:09:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-22 01:09:41,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-22 01:09:41,080 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-22 01:09:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-22 01:09:41,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-22 01:09:41,081 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-22 01:09:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-22 01:09:41,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-22 01:09:41,083 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-22 01:09:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-22 01:09:41,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-22 01:09:41,084 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 01:09:41,301 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-22 01:09:41,301 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-22 01:09:41,303 INFO L202 PluginConnector]: Adding new model mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:09:41 BoogieIcfgContainer [2021-08-22 01:09:41,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-22 01:09:41,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-22 01:09:41,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-22 01:09:41,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-22 01:09:41,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 01:09:40" (1/2) ... [2021-08-22 01:09:41,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191cf1e6 and model type mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:09:41, skipping insertion in model container [2021-08-22 01:09:41,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:09:41" (2/2) ... [2021-08-22 01:09:41,309 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-flipped-dist.wvr.bpl [2021-08-22 01:09:41,314 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-22 01:09:41,314 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-22 01:09:41,314 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-22 01:09:41,314 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-22 01:09:41,369 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-08-22 01:09:41,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-22 01:09:41,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 01:09:41,408 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 01:09:41,452 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 01:09:41,477 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-22 01:09:41,487 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 01:09:41,488 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-22 01:09:41,603 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 01:09:41,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 01:09:41,619 INFO L82 PathProgramCache]: Analyzing trace with hash 349963078, now seen corresponding path program 1 times [2021-08-22 01:09:41,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 01:09:41,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726522814] [2021-08-22 01:09:41,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 01:09:41,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 01:09:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 01:09:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 01:09:41,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 01:09:41,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726522814] [2021-08-22 01:09:41,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726522814] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 01:09:41,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896384902] [2021-08-22 01:09:41,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 01:09:41,924 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 01:09:41,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 01:09:41,929 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 01:09:41,931 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 01:09:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 01:09:41,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-22 01:09:41,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 01:09:42,169 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 01:09:42,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896384902] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 01:09:42,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 01:09:42,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-08-22 01:09:42,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576682147] [2021-08-22 01:09:42,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-22 01:09:42,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 01:09:42,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-22 01:09:42,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-22 01:09:42,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:42,197 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 01:09:42,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 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 01:09:42,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:42,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 01:09:42,438 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 01:09:42,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-08-22 01:09:42,635 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 01:09:42,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 01:09:42,636 INFO L82 PathProgramCache]: Analyzing trace with hash -2129741186, now seen corresponding path program 1 times [2021-08-22 01:09:42,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 01:09:42,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631852585] [2021-08-22 01:09:42,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 01:09:42,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 01:09:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 01:09:42,752 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-22 01:09:42,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 01:09:42,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631852585] [2021-08-22 01:09:42,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631852585] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 01:09:42,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220843723] [2021-08-22 01:09:42,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 01:09:42,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 01:09:42,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 01:09:42,765 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 01:09:42,769 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 01:09:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 01:09:42,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-22 01:09:42,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 01:09:42,944 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-22 01:09:42,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220843723] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 01:09:42,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-22 01:09:42,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-08-22 01:09:42,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446932925] [2021-08-22 01:09:42,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-22 01:09:42,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 01:09:42,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-22 01:09:42,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-08-22 01:09:42,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:42,947 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 01:09:42,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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 01:09:42,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 01:09:42,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:42,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 01:09:42,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 01:09:43,019 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 01:09:43,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 01:09:43,205 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 01:09:43,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 01:09:43,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1704753436, now seen corresponding path program 2 times [2021-08-22 01:09:43,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 01:09:43,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191875654] [2021-08-22 01:09:43,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 01:09:43,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 01:09:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 01:09:43,358 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 01:09:43,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 01:09:43,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191875654] [2021-08-22 01:09:43,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191875654] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 01:09:43,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490746965] [2021-08-22 01:09:43,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-22 01:09:43,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 01:09:43,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 01:09:43,362 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 01:09:43,368 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 01:09:43,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-22 01:09:43,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 01:09:43,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-22 01:09:43,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 01:09:43,634 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-08-22 01:09:43,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490746965] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 01:09:43,635 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 01:09:43,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 14 [2021-08-22 01:09:43,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297057546] [2021-08-22 01:09:43,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-22 01:09:43,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 01:09:43,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-22 01:09:43,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-08-22 01:09:43,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:43,644 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 01:09:43,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 states have internal predecessors, (56), 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 01:09:43,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 01:09:43,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 01:09:43,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:44,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 01:09:44,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 01:09:44,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-22 01:09:44,142 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 01:09:44,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 01:09:44,333 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 01:09:44,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 01:09:44,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1624463052, now seen corresponding path program 3 times [2021-08-22 01:09:44,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 01:09:44,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944530943] [2021-08-22 01:09:44,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 01:09:44,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 01:09:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 01:09:44,444 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-22 01:09:44,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 01:09:44,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944530943] [2021-08-22 01:09:44,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944530943] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 01:09:44,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73748851] [2021-08-22 01:09:44,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-22 01:09:44,446 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 01:09:44,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 01:09:44,447 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 01:09:44,452 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 01:09:44,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-08-22 01:09:44,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 01:09:44,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-22 01:09:44,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 01:09:44,657 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-08-22 01:09:44,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73748851] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 01:09:44,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 01:09:44,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-08-22 01:09:44,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12265719] [2021-08-22 01:09:44,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-22 01:09:44,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 01:09:44,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-22 01:09:44,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-08-22 01:09:44,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:44,661 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 01:09:44,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 01:09:44,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 01:09:44,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 01:09:44,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-22 01:09:44,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:44,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 01:09:44,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 01:09:44,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-22 01:09:44,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 01:09:44,824 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 01:09:45,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 01:09:45,007 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 01:09:45,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 01:09:45,008 INFO L82 PathProgramCache]: Analyzing trace with hash 216460588, now seen corresponding path program 4 times [2021-08-22 01:09:45,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 01:09:45,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399404406] [2021-08-22 01:09:45,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 01:09:45,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 01:09:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 01:09:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-22 01:09:45,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 01:09:45,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399404406] [2021-08-22 01:09:45,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399404406] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 01:09:45,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453907882] [2021-08-22 01:09:45,126 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-22 01:09:45,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 01:09:45,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 01:09:45,133 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 01:09:45,164 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 01:09:45,240 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-22 01:09:45,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 01:09:45,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-22 01:09:45,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 01:09:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-22 01:09:45,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453907882] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 01:09:45,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 01:09:45,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2021-08-22 01:09:45,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273841273] [2021-08-22 01:09:45,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-22 01:09:45,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 01:09:45,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-22 01:09:45,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-22 01:09:45,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:45,379 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 01:09:45,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 10 states have internal predecessors, (49), 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 01:09:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 01:09:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 01:09:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-22 01:09:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-22 01:09:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 01:09:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 01:09:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-22 01:09:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 01:09:45,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-22 01:09:45,708 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 01:09:45,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 01:09:45,890 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 01:09:45,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 01:09:45,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1637682556, now seen corresponding path program 5 times [2021-08-22 01:09:45,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 01:09:45,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823438263] [2021-08-22 01:09:45,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 01:09:45,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 01:09:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 01:09:46,055 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 01:09:46,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 01:09:46,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823438263] [2021-08-22 01:09:46,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823438263] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 01:09:46,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105830310] [2021-08-22 01:09:46,056 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-22 01:09:46,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 01:09:46,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 01:09:46,057 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 01:09:46,058 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 01:09:46,153 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-08-22 01:09:46,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 01:09:46,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 19 conjunts are in the unsatisfiable core [2021-08-22 01:09:46,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 01:09:46,638 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 01:09:46,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105830310] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 01:09:46,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 01:09:46,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2021-08-22 01:09:46,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76186855] [2021-08-22 01:09:46,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-22 01:09:46,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 01:09:46,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-22 01:09:46,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-08-22 01:09:46,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:46,640 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 01:09:46,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 14 states have internal predecessors, (53), 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 01:09:46,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 01:09:46,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 01:09:46,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-22 01:09:46,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-22 01:09:46,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-08-22 01:09:46,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:46,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 01:09:46,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 01:09:46,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-22 01:09:46,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 01:09:46,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-22 01:09:46,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 01:09:46,818 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 01:09:47,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 01:09:47,009 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 01:09:47,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 01:09:47,009 INFO L82 PathProgramCache]: Analyzing trace with hash 544155990, now seen corresponding path program 6 times [2021-08-22 01:09:47,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 01:09:47,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566927615] [2021-08-22 01:09:47,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 01:09:47,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 01:09:47,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 01:09:47,117 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 01:09:47,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 01:09:47,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566927615] [2021-08-22 01:09:47,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566927615] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 01:09:47,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941722527] [2021-08-22 01:09:47,118 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-22 01:09:47,118 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 01:09:47,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 01:09:47,121 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 01:09:47,122 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 01:09:47,244 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-08-22 01:09:47,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 01:09:47,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-22 01:09:47,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 01:09:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 01:09:47,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941722527] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 01:09:47,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 01:09:47,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-08-22 01:09:47,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954901530] [2021-08-22 01:09:47,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-22 01:09:47,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 01:09:47,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-22 01:09:47,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-08-22 01:09:47,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:47,372 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 01:09:47,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 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 01:09:47,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-22 01:09:47,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 01:09:47,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-22 01:09:47,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-22 01:09:47,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-08-22 01:09:47,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-22 01:09:47,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 01:09:48,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-22 01:09:48,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 01:09:48,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-22 01:09:48,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 01:09:48,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-22 01:09:48,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 01:09:48,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-22 01:09:48,035 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-22 01:09:48,035 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-22 01:09:48,035 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-22 01:09:48,036 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-22 01:09:48,061 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 01:09:48,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-08-22 01:09:48,260 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-22 01:09:48,260 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-22 01:09:48,263 INFO L202 PluginConnector]: Adding new model mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 01:09:48 BasicIcfg [2021-08-22 01:09:48,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-22 01:09:48,266 INFO L168 Benchmark]: Toolchain (without parser) took 7306.21 ms. Allocated memory was 202.4 MB in the beginning and 292.6 MB in the end (delta: 90.2 MB). Free memory was 183.0 MB in the beginning and 262.7 MB in the end (delta: -79.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 8.0 GB. [2021-08-22 01:09:48,269 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 202.4 MB. Free memory is still 184.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-22 01:09:48,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.39 ms. Allocated memory is still 202.4 MB. Free memory was 183.0 MB in the beginning and 181.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-22 01:09:48,270 INFO L168 Benchmark]: Boogie Preprocessor took 16.17 ms. Allocated memory is still 202.4 MB. Free memory was 181.5 MB in the beginning and 180.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-22 01:09:48,270 INFO L168 Benchmark]: RCFGBuilder took 300.02 ms. Allocated memory is still 202.4 MB. Free memory was 180.5 MB in the beginning and 167.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-22 01:09:48,271 INFO L168 Benchmark]: TraceAbstraction took 6959.09 ms. Allocated memory was 202.4 MB in the beginning and 292.6 MB in the end (delta: 90.2 MB). Free memory was 167.3 MB in the beginning and 262.7 MB in the end (delta: -95.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-22 01:09:48,273 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 0.13 ms. Allocated memory is still 202.4 MB. Free memory is still 184.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.39 ms. Allocated memory is still 202.4 MB. Free memory was 183.0 MB in the beginning and 181.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 16.17 ms. Allocated memory is still 202.4 MB. Free memory was 181.5 MB in the beginning and 180.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 300.02 ms. Allocated memory is still 202.4 MB. Free memory was 180.5 MB in the beginning and 167.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6959.09 ms. Allocated memory was 202.4 MB in the beginning and 292.6 MB in the end (delta: 90.2 MB). Free memory was 167.3 MB in the beginning and 262.7 MB in the end (delta: -95.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5465, positive: 4989, positive conditional: 4989, positive unconditional: 0, negative: 476, negative conditional: 476, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4989, positive: 4989, positive conditional: 4989, 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: 4989, positive: 4989, positive conditional: 4989, 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: 4989, positive: 4989, positive conditional: 4632, positive unconditional: 357, 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: 4989, positive: 4989, positive conditional: 4052, positive unconditional: 937, 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: 4989, positive: 4989, positive conditional: 4052, positive unconditional: 937, 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: 276, positive: 276, positive conditional: 167, positive unconditional: 109, 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: 276, positive: 276, positive conditional: 0, positive unconditional: 276, 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: 4989, positive: 4713, positive conditional: 3885, positive unconditional: 828, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 276, unknown conditional: 167, unknown unconditional: 109] , Statistics on independence cache: Total cache size (in pairs): 276, Positive cache size: 276, Positive conditional cache size: 167, Positive unconditional cache size: 109, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 580, Maximal queried relation: 0, Independence queries for same thread: 476 - 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: 63]: 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 7 procedures, 39 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6855.3ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.0ms, PartialOrderReductionTime: 2091.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 104, 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: 62.7ms SsaConstructionTime, 245.3ms SatisfiabilityAnalysisTime, 2215.9ms InterpolantComputationTime, 418 NumberOfCodeBlocks, 418 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 404 ConstructedInterpolants, 0 QuantifiedInterpolants, 2072 SizeOfPredicates, 17 NumberOfNonLiveVariables, 582 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 14 InterpolantComputations, 1 PerfectInterpolantSequences, 187/316 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 01:09:48,305 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 01:09:48,522 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...