/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-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-07 13:49:09,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-07 13:49:09,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-07 13:49:10,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-07 13:49:10,057 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-Persistent-NoLbe.epf [2021-08-07 13:49:10,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-07 13:49:10,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-07 13:49:10,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-07 13:49:10,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-07 13:49:10,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-07 13:49:10,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-07 13:49:10,078 INFO L138 SettingsManager]: * Use SBE=true [2021-08-07 13:49:10,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-07 13:49:10,079 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-07 13:49:10,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-07 13:49:10,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-07 13:49:10,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-07 13:49:10,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-07 13:49:10,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-07 13:49:10,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-07 13:49:10,080 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-07 13:49:10,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-07 13:49:10,080 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-07 13:49:10,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-07 13:49:10,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-07 13:49:10,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-07 13:49:10,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-07 13:49:10,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-07 13:49:10,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 13:49:10,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-07 13:49:10,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-07 13:49:10,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-07 13:49:10,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-07 13:49:10,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-07 13:49:10,082 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-07 13:49:10,082 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-07 13:49:10,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-07 13:49:10,082 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-08-07 13:49:10,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-07 13:49:10,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-07 13:49:10,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-07 13:49:10,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-07 13:49:10,451 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-07 13:49:10,452 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-07 13:49:10,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl [2021-08-07 13:49:10,453 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl' [2021-08-07 13:49:10,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-07 13:49:10,477 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-07 13:49:10,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-07 13:49:10,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-07 13:49:10,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-07 13:49:10,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:49:10" (1/1) ... [2021-08-07 13:49:10,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:49:10" (1/1) ... [2021-08-07 13:49:10,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-07 13:49:10,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-07 13:49:10,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-07 13:49:10,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-07 13:49:10,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:49:10" (1/1) ... [2021-08-07 13:49:10,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:49:10" (1/1) ... [2021-08-07 13:49:10,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:49:10" (1/1) ... [2021-08-07 13:49:10,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:49:10" (1/1) ... [2021-08-07 13:49:10,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:49:10" (1/1) ... [2021-08-07 13:49:10,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:49:10" (1/1) ... [2021-08-07 13:49:10,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:49:10" (1/1) ... [2021-08-07 13:49:10,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-07 13:49:10,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-07 13:49:10,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-07 13:49:10,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-07 13:49:10,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:49:10" (1/1) ... [2021-08-07 13:49:10,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 13:49:10,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:49:10,542 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) [2021-08-07 13:49:10,561 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 [2021-08-07 13:49:10,582 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-07 13:49:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-07 13:49:10,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-07 13:49:10,583 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-07 13:49:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-07 13:49:10,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-07 13:49:10,584 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-07 13:49:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-07 13:49:10,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-07 13:49:10,585 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-07 13:49:10,836 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-07 13:49:10,836 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-07 13:49:10,838 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 01:49:10 BoogieIcfgContainer [2021-08-07 13:49:10,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-07 13:49:10,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-07 13:49:10,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-07 13:49:10,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-07 13:49:10,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:49:10" (1/2) ... [2021-08-07 13:49:10,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586e576b and model type counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 01:49:10, skipping insertion in model container [2021-08-07 13:49:10,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 01:49:10" (2/2) ... [2021-08-07 13:49:10,844 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-fun.wvr.bpl [2021-08-07 13:49:10,849 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-07 13:49:10,849 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-07 13:49:10,849 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-07 13:49:10,849 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-07 13:49:10,878 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-08-07 13:49:10,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-07 13:49:10,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:49:10,919 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) [2021-08-07 13:49:10,939 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 [2021-08-07 13:49:10,981 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-07 13:49:10,987 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 [2021-08-07 13:49:10,988 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-07 13:49:11,173 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 13:49:11,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:49:11,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1482196669, now seen corresponding path program 1 times [2021-08-07 13:49:11,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:49:11,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706647589] [2021-08-07 13:49:11,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:49:11,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:49:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:49:11,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 13:49:11,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:49:11,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706647589] [2021-08-07 13:49:11,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706647589] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:11,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977661497] [2021-08-07 13:49:11,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:49:11,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:49:11,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:49:11,433 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) [2021-08-07 13:49:11,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-07 13:49:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:49:11,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-07 13:49:11,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:49:11,679 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 13 treesize of output 9 [2021-08-07 13:49:11,733 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 11 treesize of output 7 [2021-08-07 13:49:11,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 13:49:11,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977661497] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:11,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:49:11,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-07 13:49:11,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811386752] [2021-08-07 13:49:11,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 13:49:11,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:49:11,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 13:49:11,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 13:49:11,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:11,795 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:49:11,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-08-07 13:49:11,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:11,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:11,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-07 13:49:12,059 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 [2021-08-07 13:49:12,060 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 13:49:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:49:12,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1587881921, now seen corresponding path program 2 times [2021-08-07 13:49:12,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:49:12,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299705682] [2021-08-07 13:49:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:49:12,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:49:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:49:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 13:49:12,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:49:12,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299705682] [2021-08-07 13:49:12,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299705682] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:12,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464358823] [2021-08-07 13:49:12,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 13:49:12,240 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:49:12,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:49:12,241 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) [2021-08-07 13:49:12,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-07 13:49:12,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 13:49:12,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:49:12,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-07 13:49:12,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:49:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 13:49:12,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464358823] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:12,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:49:12,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-08-07 13:49:12,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379012463] [2021-08-07 13:49:12,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-07 13:49:12,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:49:12,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-07 13:49:12,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-08-07 13:49:12,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:12,716 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:49:12,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 14 states have internal predecessors, (34), 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) [2021-08-07 13:49:12,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:12,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:13,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:13,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-07 13:49:13,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-07 13:49:13,259 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 [2021-08-07 13:49:13,259 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 13:49:13,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:49:13,260 INFO L82 PathProgramCache]: Analyzing trace with hash 882512315, now seen corresponding path program 3 times [2021-08-07 13:49:13,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:49:13,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689496482] [2021-08-07 13:49:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:49:13,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:49:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:49:13,345 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 13:49:13,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:49:13,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689496482] [2021-08-07 13:49:13,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689496482] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:13,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962136786] [2021-08-07 13:49:13,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 13:49:13,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:49:13,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:49:13,347 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) [2021-08-07 13:49:13,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-07 13:49:13,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-08-07 13:49:13,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:49:13,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-07 13:49:13,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:49:13,795 INFO L354 Elim1Store]: treesize reduction 97, result has 24.8 percent of original size [2021-08-07 13:49:13,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 76 treesize of output 61 [2021-08-07 13:49:13,827 INFO L354 Elim1Store]: treesize reduction 21, result has 57.1 percent of original size [2021-08-07 13:49:13,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 53 [2021-08-07 13:49:13,960 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 13:49:13,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962136786] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:13,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:49:13,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-08-07 13:49:13,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337275376] [2021-08-07 13:49:13,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-07 13:49:13,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:49:13,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-07 13:49:13,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-08-07 13:49:13,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:13,962 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:49:13,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 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) [2021-08-07 13:49:13,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:13,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-07 13:49:13,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:14,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:14,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 13:49:14,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:49:14,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-07 13:49:14,300 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 [2021-08-07 13:49:14,301 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 13:49:14,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:49:14,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1080605235, now seen corresponding path program 4 times [2021-08-07 13:49:14,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:49:14,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62669877] [2021-08-07 13:49:14,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:49:14,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:49:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:49:14,517 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 26 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 13:49:14,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:49:14,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62669877] [2021-08-07 13:49:14,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62669877] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:14,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637911886] [2021-08-07 13:49:14,518 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 13:49:14,518 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:49:14,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:49:14,525 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) [2021-08-07 13:49:14,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-07 13:49:14,615 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 13:49:14,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:49:14,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-07 13:49:14,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:49:15,216 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 13:49:15,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637911886] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:15,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:49:15,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 25 [2021-08-07 13:49:15,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493077760] [2021-08-07 13:49:15,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-07 13:49:15,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:49:15,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-07 13:49:15,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2021-08-07 13:49:15,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:15,221 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:49:15,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.269230769230769) internal successors, (59), 25 states have internal predecessors, (59), 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) [2021-08-07 13:49:15,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:15,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 13:49:15,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:49:15,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:16,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:49:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:49:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-08-07 13:49:16,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-07 13:49:16,540 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 [2021-08-07 13:49:16,541 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 13:49:16,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:49:16,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1611807709, now seen corresponding path program 5 times [2021-08-07 13:49:16,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:49:16,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460678565] [2021-08-07 13:49:16,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:49:16,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:49:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:49:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 65 proven. 67 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-08-07 13:49:16,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:49:16,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460678565] [2021-08-07 13:49:16,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460678565] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:16,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242817083] [2021-08-07 13:49:16,910 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-07 13:49:16,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:49:16,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:49:16,913 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) [2021-08-07 13:49:16,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-07 13:49:17,090 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-08-07 13:49:17,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:49:17,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-07 13:49:17,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:49:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 25 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 13:49:18,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242817083] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:18,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:49:18,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 22] total 35 [2021-08-07 13:49:18,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822056722] [2021-08-07 13:49:18,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-08-07 13:49:18,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:49:18,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-08-07 13:49:18,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1072, Unknown=0, NotChecked=0, Total=1260 [2021-08-07 13:49:18,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:18,076 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:49:18,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.1944444444444446) internal successors, (79), 35 states have internal predecessors, (79), 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) [2021-08-07 13:49:18,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:18,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:49:18,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:49:18,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-08-07 13:49:18,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:20,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:20,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:49:20,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:49:20,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-08-07 13:49:20,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-08-07 13:49:20,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-07 13:49:20,399 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 [2021-08-07 13:49:20,400 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 13:49:20,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:49:20,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1541507309, now seen corresponding path program 6 times [2021-08-07 13:49:20,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:49:20,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214897631] [2021-08-07 13:49:20,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:49:20,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:49:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:49:20,560 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-08-07 13:49:20,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:49:20,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214897631] [2021-08-07 13:49:20,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214897631] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:20,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547598540] [2021-08-07 13:49:20,561 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-07 13:49:20,561 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:49:20,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:49:20,571 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) [2021-08-07 13:49:20,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-07 13:49:20,764 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-08-07 13:49:20,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:49:20,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 97 conjunts are in the unsatisfiable core [2021-08-07 13:49:20,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:49:22,742 INFO L354 Elim1Store]: treesize reduction 576, result has 22.3 percent of original size [2021-08-07 13:49:22,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 17 new quantified variables, introduced 55 case distinctions, treesize of input 201 treesize of output 233 [2021-08-07 13:49:22,813 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-07 13:49:22,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 275 treesize of output 211 [2021-08-07 13:49:23,250 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 11 proven. 272 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-08-07 13:49:23,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547598540] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:23,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:49:23,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-08-07 13:49:23,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052643936] [2021-08-07 13:49:23,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-07 13:49:23,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:49:23,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-07 13:49:23,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-08-07 13:49:23,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:23,255 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:49:23,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 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) [2021-08-07 13:49:23,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:23,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:49:23,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:49:23,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-08-07 13:49:23,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-08-07 13:49:23,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:49:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:49:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-08-07 13:49:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-08-07 13:49:23,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 13:49:23,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-07 13:49:23,672 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 [2021-08-07 13:49:23,673 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 13:49:23,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:49:23,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1490818937, now seen corresponding path program 7 times [2021-08-07 13:49:23,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:49:23,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218159813] [2021-08-07 13:49:23,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:49:23,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:49:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:49:24,028 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 160 proven. 305 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-08-07 13:49:24,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:49:24,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218159813] [2021-08-07 13:49:24,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218159813] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:24,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291247559] [2021-08-07 13:49:24,029 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-07 13:49:24,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:49:24,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:49:24,030 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) [2021-08-07 13:49:24,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-07 13:49:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:49:24,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 31 conjunts are in the unsatisfiable core [2021-08-07 13:49:24,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:49:25,854 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 187 proven. 313 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-08-07 13:49:25,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291247559] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:25,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:49:25,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 31] total 46 [2021-08-07 13:49:25,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399104747] [2021-08-07 13:49:25,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-08-07 13:49:25,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:49:25,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-08-07 13:49:25,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=1912, Unknown=0, NotChecked=0, Total=2162 [2021-08-07 13:49:25,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:25,857 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:49:25,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.297872340425532) internal successors, (108), 46 states have internal predecessors, (108), 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) [2021-08-07 13:49:25,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:25,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:49:25,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:49:25,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-08-07 13:49:25,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-08-07 13:49:25,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 13:49:25,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:28,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:49:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:49:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-08-07 13:49:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-08-07 13:49:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 13:49:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-08-07 13:49:28,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-07 13:49:28,570 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 [2021-08-07 13:49:28,571 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 13:49:28,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:49:28,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1627732011, now seen corresponding path program 8 times [2021-08-07 13:49:28,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:49:28,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179540080] [2021-08-07 13:49:28,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:49:28,571 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:49:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:49:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 115 proven. 140 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-08-07 13:49:28,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:49:28,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179540080] [2021-08-07 13:49:28,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179540080] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:28,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710820691] [2021-08-07 13:49:28,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 13:49:28,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:49:28,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:49:28,874 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) [2021-08-07 13:49:28,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-07 13:49:29,240 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 13:49:29,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:49:29,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 29 conjunts are in the unsatisfiable core [2021-08-07 13:49:29,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:49:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 50 proven. 263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 13:49:30,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710820691] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:30,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:49:30,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 29] total 41 [2021-08-07 13:49:30,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225623496] [2021-08-07 13:49:30,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-08-07 13:49:30,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:49:30,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-08-07 13:49:30,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=1519, Unknown=0, NotChecked=0, Total=1722 [2021-08-07 13:49:30,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:30,528 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:49:30,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.2142857142857144) internal successors, (93), 41 states have internal predecessors, (93), 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) [2021-08-07 13:49:30,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:30,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:49:30,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:49:30,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-08-07 13:49:30,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-08-07 13:49:30,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 13:49:30,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-08-07 13:49:30,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:33,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:49:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:49:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-08-07 13:49:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-08-07 13:49:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 13:49:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-08-07 13:49:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-08-07 13:49:33,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-07 13:49:33,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:49:33,740 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 13:49:33,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:49:33,741 INFO L82 PathProgramCache]: Analyzing trace with hash 986349665, now seen corresponding path program 9 times [2021-08-07 13:49:33,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:49:33,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472955452] [2021-08-07 13:49:33,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:49:33,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:49:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:49:34,009 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 84 proven. 65 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-08-07 13:49:34,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:49:34,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472955452] [2021-08-07 13:49:34,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472955452] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:34,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815994721] [2021-08-07 13:49:34,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 13:49:34,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:49:34,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:49:34,013 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:49:34,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-07 13:49:34,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-08-07 13:49:34,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:49:34,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-07 13:49:34,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:49:35,388 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 44 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 13:49:35,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815994721] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:35,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:49:35,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 23] total 36 [2021-08-07 13:49:35,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714530345] [2021-08-07 13:49:35,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-08-07 13:49:35,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:49:35,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-08-07 13:49:35,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1151, Unknown=0, NotChecked=0, Total=1332 [2021-08-07 13:49:35,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:35,391 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:49:35,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.189189189189189) internal successors, (81), 36 states have internal predecessors, (81), 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) [2021-08-07 13:49:35,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:35,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:49:35,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:49:35,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-08-07 13:49:35,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-08-07 13:49:35,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 13:49:35,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2021-08-07 13:49:35,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-08-07 13:49:35,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:49:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 13:49:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-08-07 13:49:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-08-07 13:49:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 13:49:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-08-07 13:49:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-08-07 13:49:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-08-07 13:49:37,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-07 13:49:37,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-08-07 13:49:37,657 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 13:49:37,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:49:37,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1998033909, now seen corresponding path program 10 times [2021-08-07 13:49:37,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:49:37,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289971718] [2021-08-07 13:49:37,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:49:37,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:49:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:49:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-08-07 13:49:37,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:49:37,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289971718] [2021-08-07 13:49:37,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289971718] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:37,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677565679] [2021-08-07 13:49:37,763 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 13:49:37,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:49:37,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:49:37,764 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:49:37,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-08-07 13:49:38,201 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 13:49:38,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:49:38,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-07 13:49:38,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:49:38,608 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 13:49:38,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677565679] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:49:38,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:49:38,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 20 [2021-08-07 13:49:38,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99765113] [2021-08-07 13:49:38,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-07 13:49:38,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:49:38,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-07 13:49:38,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2021-08-07 13:49:38,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:38,611 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:49:38,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 20 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) [2021-08-07 13:49:38,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:38,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:49:38,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 13:49:38,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-08-07 13:49:38,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-08-07 13:49:38,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 13:49:38,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-08-07 13:49:38,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-08-07 13:49:38,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-08-07 13:49:38,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:49:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 13:49:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:49:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 13:49:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-08-07 13:49:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-08-07 13:49:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 13:49:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-08-07 13:49:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-08-07 13:49:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-08-07 13:49:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-08-07 13:49:39,547 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-07 13:49:39,547 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-07 13:49:39,548 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-07 13:49:39,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-08-07 13:49:39,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-08-07 13:49:39,789 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-07 13:49:39,790 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-07 13:49:39,791 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.08 01:49:39 BasicIcfg [2021-08-07 13:49:39,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-07 13:49:39,792 INFO L168 Benchmark]: Toolchain (without parser) took 29314.61 ms. Allocated memory was 205.5 MB in the beginning and 550.5 MB in the end (delta: 345.0 MB). Free memory was 186.3 MB in the beginning and 244.2 MB in the end (delta: -57.9 MB). Peak memory consumption was 287.6 MB. Max. memory is 8.0 GB. [2021-08-07 13:49:39,792 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 205.5 MB. Free memory was 187.4 MB in the beginning and 187.3 MB in the end (delta: 132.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-07 13:49:39,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.81 ms. Allocated memory is still 205.5 MB. Free memory was 186.1 MB in the beginning and 184.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-07 13:49:39,792 INFO L168 Benchmark]: Boogie Preprocessor took 13.45 ms. Allocated memory is still 205.5 MB. Free memory was 184.7 MB in the beginning and 183.7 MB in the end (delta: 982.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-07 13:49:39,792 INFO L168 Benchmark]: RCFGBuilder took 321.29 ms. Allocated memory is still 205.5 MB. Free memory was 183.7 MB in the beginning and 170.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-07 13:49:39,792 INFO L168 Benchmark]: TraceAbstraction took 28951.77 ms. Allocated memory was 205.5 MB in the beginning and 550.5 MB in the end (delta: 345.0 MB). Free memory was 170.5 MB in the beginning and 244.2 MB in the end (delta: -73.6 MB). Peak memory consumption was 271.9 MB. Max. memory is 8.0 GB. [2021-08-07 13:49:39,792 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 0.15 ms. Allocated memory is still 205.5 MB. Free memory was 187.4 MB in the beginning and 187.3 MB in the end (delta: 132.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.81 ms. Allocated memory is still 205.5 MB. Free memory was 186.1 MB in the beginning and 184.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.45 ms. Allocated memory is still 205.5 MB. Free memory was 184.7 MB in the beginning and 183.7 MB in the end (delta: 982.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 321.29 ms. Allocated memory is still 205.5 MB. Free memory was 183.7 MB in the beginning and 170.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 28951.77 ms. Allocated memory was 205.5 MB in the beginning and 550.5 MB in the end (delta: 345.0 MB). Free memory was 170.5 MB in the beginning and 244.2 MB in the end (delta: -73.6 MB). Peak memory consumption was 271.9 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: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 77, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 77, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 73, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 88, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 77, unknown conditional: 0, unknown unconditional: 77] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 108, Number of persistent set computation: 20, Number of trivial persistent sets: 10, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 77, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 77, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 73, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 88, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 77, unknown conditional: 0, unknown unconditional: 77] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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: 53]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 28874.5ms, OverallIterations: 10, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 47.5ms, PartialOrderReductionTime: 12584.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 432, 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: 79.9ms SsaConstructionTime, 389.5ms SatisfiabilityAnalysisTime, 11426.9ms InterpolantComputationTime, 884 NumberOfCodeBlocks, 884 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 864 ConstructedInterpolants, 0 QuantifiedInterpolants, 10054 SizeOfPredicates, 35 NumberOfNonLiveVariables, 1337 ConjunctsInSsa, 271 ConjunctsInUnsatCore, 20 InterpolantComputations, 0 PerfectInterpolantSequences, 1173/3298 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! [2021-08-07 13:49:39,833 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 [2021-08-07 13:49:40,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...