/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/parray-copy.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-22 02:19:02,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-22 02:19:02,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-22 02:19:02,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-22 02:19:02,122 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf [2021-08-22 02:19:02,160 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-22 02:19:02,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-22 02:19:02,161 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-22 02:19:02,161 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-22 02:19:02,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-22 02:19:02,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-22 02:19:02,164 INFO L138 SettingsManager]: * Use SBE=true [2021-08-22 02:19:02,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-22 02:19:02,164 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-22 02:19:02,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-22 02:19:02,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-22 02:19:02,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-22 02:19:02,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-22 02:19:02,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-22 02:19:02,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-22 02:19:02,166 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-22 02:19:02,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-22 02:19:02,166 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-22 02:19:02,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-22 02:19:02,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-22 02:19:02,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-22 02:19:02,167 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-22 02:19:02,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-22 02:19:02,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 02:19:02,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-22 02:19:02,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-22 02:19:02,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-22 02:19:02,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-22 02:19:02,168 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-08-22 02:19:02,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-22 02:19:02,168 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-22 02:19:02,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-22 02:19:02,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-22 02:19:02,169 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-08-22 02:19:02,169 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-22 02:19:02,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-22 02:19:02,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-22 02:19:02,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-22 02:19:02,517 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-22 02:19:02,518 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-22 02:19:02,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/parray-copy.wvr.bpl [2021-08-22 02:19:02,519 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/parray-copy.wvr.bpl' [2021-08-22 02:19:02,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-22 02:19:02,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-22 02:19:02,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-22 02:19:02,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-22 02:19:02,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-22 02:19:02,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 02:19:02" (1/1) ... [2021-08-22 02:19:02,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 02:19:02" (1/1) ... [2021-08-22 02:19:02,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-22 02:19:02,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-22 02:19:02,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-22 02:19:02,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-22 02:19:02,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 02:19:02" (1/1) ... [2021-08-22 02:19:02,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 02:19:02" (1/1) ... [2021-08-22 02:19:02,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 02:19:02" (1/1) ... [2021-08-22 02:19:02,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 02:19:02" (1/1) ... [2021-08-22 02:19:02,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 02:19:02" (1/1) ... [2021-08-22 02:19:02,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 02:19:02" (1/1) ... [2021-08-22 02:19:02,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 02:19:02" (1/1) ... [2021-08-22 02:19:02,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-22 02:19:02,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-22 02:19:02,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-22 02:19:02,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-22 02:19:02,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 02:19:02" (1/1) ... [2021-08-22 02:19:02,615 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 02:19:02,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 02:19:02,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-22 02:19:02,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-22 02:19:02,671 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-22 02:19:02,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-22 02:19:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-22 02:19:02,672 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-22 02:19:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-22 02:19:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-22 02:19:02,672 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-22 02:19:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-22 02:19:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-22 02:19:02,673 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-22 02:19:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-22 02:19:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-22 02:19:02,674 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-22 02:19:02,837 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-22 02:19:02,838 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-22 02:19:02,839 INFO L202 PluginConnector]: Adding new model parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:19:02 BoogieIcfgContainer [2021-08-22 02:19:02,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-22 02:19:02,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-22 02:19:02,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-22 02:19:02,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-22 02:19:02,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 02:19:02" (1/2) ... [2021-08-22 02:19:02,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182fbc19 and model type parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:19:02, skipping insertion in model container [2021-08-22 02:19:02,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:19:02" (2/2) ... [2021-08-22 02:19:02,846 INFO L111 eAbstractionObserver]: Analyzing ICFG parray-copy.wvr.bpl [2021-08-22 02:19:02,850 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-22 02:19:02,851 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-22 02:19:02,851 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-22 02:19:02,851 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-22 02:19:02,885 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-08-22 02:19:02,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-22 02:19:02,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 02:19:02,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-22 02:19:02,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-08-22 02:19:02,977 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-22 02:19:02,982 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-22 02:19:02,983 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-22 02:19:03,149 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 02:19:03,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 02:19:03,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1445371129, now seen corresponding path program 1 times [2021-08-22 02:19:03,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 02:19:03,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027969149] [2021-08-22 02:19:03,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 02:19:03,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 02:19:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 02:19:03,436 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 02:19:03,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 02:19:03,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027969149] [2021-08-22 02:19:03,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027969149] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 02:19:03,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545521908] [2021-08-22 02:19:03,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 02:19:03,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 02:19:03,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 02:19:03,443 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-22 02:19:03,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-22 02:19:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 02:19:03,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-22 02:19:03,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 02:19:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-22 02:19:03,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545521908] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 02:19:03,857 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 02:19:03,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2021-08-22 02:19:03,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174466951] [2021-08-22 02:19:03,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-22 02:19:03,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 02:19:03,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-22 02:19:03,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-08-22 02:19:03,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 02:19:03,884 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 02:19:03,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 02:19:03,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 02:19:04,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-22 02:19:04,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-22 02:19:04,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-08-22 02:19:04,490 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 02:19:04,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 02:19:04,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1994267133, now seen corresponding path program 2 times [2021-08-22 02:19:04,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 02:19:04,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025898693] [2021-08-22 02:19:04,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 02:19:04,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 02:19:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 02:19:04,649 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-22 02:19:04,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 02:19:04,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025898693] [2021-08-22 02:19:04,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025898693] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 02:19:04,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703537257] [2021-08-22 02:19:04,651 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-22 02:19:04,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 02:19:04,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 02:19:04,657 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-22 02:19:04,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-22 02:19:04,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-22 02:19:04,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 02:19:04,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-22 02:19:04,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 02:19:05,001 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-22 02:19:05,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703537257] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 02:19:05,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 02:19:05,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 13 [2021-08-22 02:19:05,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469705799] [2021-08-22 02:19:05,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-22 02:19:05,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 02:19:05,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-22 02:19:05,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-08-22 02:19:05,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 02:19:05,004 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 02:19:05,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 02:19:05,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-22 02:19:05,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 02:19:05,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-22 02:19:05,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-22 02:19:05,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-22 02:19:05,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 02:19:05,754 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 02:19:05,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 02:19:05,755 INFO L82 PathProgramCache]: Analyzing trace with hash -118717587, now seen corresponding path program 3 times [2021-08-22 02:19:05,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 02:19:05,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748440008] [2021-08-22 02:19:05,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 02:19:05,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 02:19:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 02:19:07,614 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 02:19:07,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 02:19:07,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748440008] [2021-08-22 02:19:07,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748440008] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 02:19:07,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412653693] [2021-08-22 02:19:07,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-22 02:19:07,615 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 02:19:07,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 02:19:07,617 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-22 02:19:07,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-22 02:19:07,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-08-22 02:19:07,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 02:19:07,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 32 conjunts are in the unsatisfiable core [2021-08-22 02:19:07,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 02:19:08,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-08-22 02:19:08,240 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-08-22 02:19:08,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2021-08-22 02:19:08,400 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-08-22 02:19:08,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 39 [2021-08-22 02:19:08,609 INFO L354 Elim1Store]: treesize reduction 72, result has 18.2 percent of original size [2021-08-22 02:19:08,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 57 [2021-08-22 02:19:08,880 INFO L354 Elim1Store]: treesize reduction 136, result has 13.4 percent of original size [2021-08-22 02:19:08,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 71 [2021-08-22 02:19:09,267 INFO L354 Elim1Store]: treesize reduction 174, result has 13.9 percent of original size [2021-08-22 02:19:09,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 83 [2021-08-22 02:19:09,847 INFO L354 Elim1Store]: treesize reduction 232, result has 12.5 percent of original size [2021-08-22 02:19:09,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 81 treesize of output 98 [2021-08-22 02:19:10,495 INFO L354 Elim1Store]: treesize reduction 340, result has 10.1 percent of original size [2021-08-22 02:19:10,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 92 treesize of output 112 [2021-08-22 02:19:11,542 INFO L354 Elim1Store]: treesize reduction 392, result has 10.3 percent of original size [2021-08-22 02:19:11,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 107 treesize of output 130 [2021-08-22 02:19:18,369 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 1 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 02:19:18,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412653693] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 02:19:18,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 02:19:18,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 37 [2021-08-22 02:19:18,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72495362] [2021-08-22 02:19:18,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-08-22 02:19:18,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 02:19:18,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-08-22 02:19:18,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1216, Unknown=1, NotChecked=0, Total=1332 [2021-08-22 02:19:18,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 02:19:18,373 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 02:19:18,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.054054054054054) internal successors, (76), 37 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 02:19:18,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-22 02:19:18,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-22 02:19:18,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 02:19:22,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-22 02:19:22,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-22 02:19:22,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-22 02:19:22,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-22 02:19:22,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 02:19:22,950 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 02:19:22,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 02:19:22,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1228702137, now seen corresponding path program 4 times [2021-08-22 02:19:22,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 02:19:22,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293431977] [2021-08-22 02:19:22,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 02:19:22,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 02:19:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 02:19:23,129 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 6 proven. 71 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-08-22 02:19:23,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 02:19:23,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293431977] [2021-08-22 02:19:23,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293431977] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 02:19:23,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858511067] [2021-08-22 02:19:23,135 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-22 02:19:23,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 02:19:23,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 02:19:23,141 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-22 02:19:23,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-22 02:19:23,401 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-22 02:19:23,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 02:19:23,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 19 conjunts are in the unsatisfiable core [2021-08-22 02:19:23,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 02:19:23,817 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 20 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-22 02:19:23,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858511067] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 02:19:23,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 02:19:23,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 21 [2021-08-22 02:19:23,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343693242] [2021-08-22 02:19:23,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-22 02:19:23,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 02:19:23,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-22 02:19:23,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2021-08-22 02:19:23,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 02:19:23,820 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 02:19:23,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.9523809523809526) internal successors, (83), 21 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 02:19:23,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-22 02:19:23,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-22 02:19:23,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-22 02:19:23,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 02:19:24,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-22 02:19:24,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-22 02:19:24,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-22 02:19:24,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-08-22 02:19:24,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-22 02:19:25,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 02:19:25,115 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 02:19:25,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 02:19:25,115 INFO L82 PathProgramCache]: Analyzing trace with hash 450120855, now seen corresponding path program 5 times [2021-08-22 02:19:25,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 02:19:25,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333971150] [2021-08-22 02:19:25,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 02:19:25,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 02:19:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 02:19:29,193 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 02:19:29,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 02:19:29,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333971150] [2021-08-22 02:19:29,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333971150] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 02:19:29,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270394010] [2021-08-22 02:19:29,194 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-22 02:19:29,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 02:19:29,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 02:19:29,199 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-22 02:19:29,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-22 02:19:29,497 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-08-22 02:19:29,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 02:19:29,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 56 conjunts are in the unsatisfiable core [2021-08-22 02:19:29,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 02:19:29,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-08-22 02:19:29,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:29,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-08-22 02:19:29,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:29,943 INFO L354 Elim1Store]: treesize reduction 38, result has 25.5 percent of original size [2021-08-22 02:19:29,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 32 [2021-08-22 02:19:30,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,062 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-22 02:19:30,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2021-08-22 02:19:30,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2021-08-22 02:19:30,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,290 INFO L354 Elim1Store]: treesize reduction 60, result has 25.0 percent of original size [2021-08-22 02:19:30,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 49 [2021-08-22 02:19:30,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-22 02:19:30,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,486 INFO L354 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2021-08-22 02:19:30,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 56 [2021-08-22 02:19:30,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,664 INFO L354 Elim1Store]: treesize reduction 43, result has 10.4 percent of original size [2021-08-22 02:19:30,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 57 [2021-08-22 02:19:30,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:30,874 INFO L354 Elim1Store]: treesize reduction 120, result has 18.9 percent of original size [2021-08-22 02:19:30,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 58 treesize of output 72 [2021-08-22 02:19:31,045 INFO L354 Elim1Store]: treesize reduction 49, result has 9.3 percent of original size [2021-08-22 02:19:31,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 58 [2021-08-22 02:19:31,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:31,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:31,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:31,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:31,293 INFO L354 Elim1Store]: treesize reduction 55, result has 8.3 percent of original size [2021-08-22 02:19:31,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 53 treesize of output 67 [2021-08-22 02:19:31,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:31,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:31,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:31,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:31,536 INFO L354 Elim1Store]: treesize reduction 144, result has 18.6 percent of original size [2021-08-22 02:19:31,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 68 treesize of output 85 [2021-08-22 02:19:31,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:31,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:31,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:31,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:19:31,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-22 02:19:31,796 INFO L354 Elim1Store]: treesize reduction 132, result has 7.7 percent of original size [2021-08-22 02:19:31,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 75 treesize of output 90 [2021-08-22 02:19:32,117 INFO L354 Elim1Store]: treesize reduction 120, result has 8.4 percent of original size [2021-08-22 02:19:32,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 71 treesize of output 91 [2021-08-22 02:19:32,362 INFO L354 Elim1Store]: treesize reduction 136, result has 7.5 percent of original size [2021-08-22 02:19:32,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 78 treesize of output 101 [2021-08-22 02:19:32,670 INFO L354 Elim1Store]: treesize reduction 152, result has 6.7 percent of original size [2021-08-22 02:19:32,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 17 case distinctions, treesize of input 85 treesize of output 111 [2021-08-22 02:19:33,078 INFO L354 Elim1Store]: treesize reduction 168, result has 6.1 percent of original size [2021-08-22 02:19:33,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 92 treesize of output 121 [2021-08-22 02:19:33,756 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 02:19:33,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270394010] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 02:19:33,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 02:19:33,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25] total 49 [2021-08-22 02:19:33,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138104612] [2021-08-22 02:19:33,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-08-22 02:19:33,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 02:19:33,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-08-22 02:19:33,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=2180, Unknown=0, NotChecked=0, Total=2352 [2021-08-22 02:19:33,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 02:19:33,759 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 02:19:33,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.204081632653061) internal successors, (108), 49 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) [2021-08-22 02:19:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-22 02:19:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-22 02:19:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-22 02:19:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-08-22 02:19:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 02:20:03,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-22 02:20:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-22 02:20:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-22 02:20:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-08-22 02:20:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-08-22 02:20:03,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-22 02:20:03,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 02:20:03,532 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 02:20:03,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 02:20:03,533 INFO L82 PathProgramCache]: Analyzing trace with hash -2167585, now seen corresponding path program 6 times [2021-08-22 02:20:03,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 02:20:03,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195215244] [2021-08-22 02:20:03,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 02:20:03,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 02:20:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 02:20:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 12 proven. 170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 02:20:08,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 02:20:08,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195215244] [2021-08-22 02:20:08,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195215244] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 02:20:08,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366408667] [2021-08-22 02:20:08,447 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-22 02:20:08,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 02:20:08,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 02:20:08,448 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-22 02:20:08,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-22 02:20:09,097 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-08-22 02:20:09,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-22 02:20:09,100 WARN L261 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 72 conjunts are in the unsatisfiable core [2021-08-22 02:20:09,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 02:20:09,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-08-22 02:20:09,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:09,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-08-22 02:20:09,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:09,815 INFO L354 Elim1Store]: treesize reduction 38, result has 25.5 percent of original size [2021-08-22 02:20:09,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 32 [2021-08-22 02:20:09,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:09,973 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-22 02:20:09,983 INFO L354 Elim1Store]: treesize reduction 39, result has 11.4 percent of original size [2021-08-22 02:20:09,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 37 [2021-08-22 02:20:10,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,136 INFO L354 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2021-08-22 02:20:10,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 44 [2021-08-22 02:20:10,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,319 INFO L354 Elim1Store]: treesize reduction 106, result has 15.9 percent of original size [2021-08-22 02:20:10,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 58 [2021-08-22 02:20:10,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,489 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-22 02:20:10,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,514 INFO L354 Elim1Store]: treesize reduction 112, result has 10.4 percent of original size [2021-08-22 02:20:10,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 58 treesize of output 65 [2021-08-22 02:20:10,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,727 INFO L354 Elim1Store]: treesize reduction 96, result has 11.9 percent of original size [2021-08-22 02:20:10,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 52 treesize of output 66 [2021-08-22 02:20:10,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:10,995 INFO L354 Elim1Store]: treesize reduction 170, result has 11.9 percent of original size [2021-08-22 02:20:10,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 63 treesize of output 80 [2021-08-22 02:20:11,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:11,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:11,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:11,242 INFO L354 Elim1Store]: treesize reduction 172, result has 10.4 percent of original size [2021-08-22 02:20:11,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 66 treesize of output 81 [2021-08-22 02:20:11,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:11,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:11,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:11,529 INFO L354 Elim1Store]: treesize reduction 236, result has 14.5 percent of original size [2021-08-22 02:20:11,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 74 treesize of output 94 [2021-08-22 02:20:11,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:11,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:11,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:11,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:11,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:11,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:11,862 INFO L354 Elim1Store]: treesize reduction 282, result has 8.4 percent of original size [2021-08-22 02:20:11,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 85 treesize of output 108 [2021-08-22 02:20:12,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:12,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:12,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:12,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:12,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:12,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:12,265 INFO L354 Elim1Store]: treesize reduction 438, result has 10.6 percent of original size [2021-08-22 02:20:12,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 12 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 96 treesize of output 122 [2021-08-22 02:20:12,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:12,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:12,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:12,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:12,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:12,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:12,772 INFO L354 Elim1Store]: treesize reduction 502, result has 10.5 percent of original size [2021-08-22 02:20:12,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 12 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 43 case distinctions, treesize of input 108 treesize of output 137 [2021-08-22 02:20:13,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,353 INFO L354 Elim1Store]: treesize reduction 492, result has 5.9 percent of original size [2021-08-22 02:20:13,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 119 treesize of output 151 [2021-08-22 02:20:13,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:13,973 INFO L354 Elim1Store]: treesize reduction 700, result has 9.2 percent of original size [2021-08-22 02:20:13,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 16 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 62 case distinctions, treesize of input 134 treesize of output 169 [2021-08-22 02:20:14,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:14,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:14,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:14,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:14,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:14,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:14,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:14,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:14,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:14,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:14,850 INFO L354 Elim1Store]: treesize reduction 900, result has 7.8 percent of original size [2021-08-22 02:20:14,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 16 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 75 case distinctions, treesize of input 145 treesize of output 183 [2021-08-22 02:20:15,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:15,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:15,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:15,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:15,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:15,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:15,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:15,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:15,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:15,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:15,827 INFO L354 Elim1Store]: treesize reduction 1068, result has 7.2 percent of original size [2021-08-22 02:20:15,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 16 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 89 case distinctions, treesize of input 156 treesize of output 197 [2021-08-22 02:20:16,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:16,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:16,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:16,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:16,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:16,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:16,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:16,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:16,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:16,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:17,091 INFO L354 Elim1Store]: treesize reduction 1248, result has 6.7 percent of original size [2021-08-22 02:20:17,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 16 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 104 case distinctions, treesize of input 167 treesize of output 211 [2021-08-22 02:20:17,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:17,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:17,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:17,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:17,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:17,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:17,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:17,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:17,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:17,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:18,281 INFO L354 Elim1Store]: treesize reduction 1440, result has 6.3 percent of original size [2021-08-22 02:20:18,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 16 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 178 treesize of output 225 [2021-08-22 02:20:18,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:18,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:18,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:18,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:18,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:18,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:18,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:18,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:18,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:18,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:20:19,977 INFO L354 Elim1Store]: treesize reduction 1542, result has 6.3 percent of original size [2021-08-22 02:20:19,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 16 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 137 case distinctions, treesize of input 193 treesize of output 243 [2021-08-22 02:20:44,327 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 02:20:44,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366408667] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 02:20:44,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 02:20:44,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 34] total 62 [2021-08-22 02:20:44,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788488767] [2021-08-22 02:20:44,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-08-22 02:20:44,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 02:20:44,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-08-22 02:20:44,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=3500, Unknown=4, NotChecked=0, Total=3782 [2021-08-22 02:20:44,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 02:20:44,330 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 02:20:44,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 2.0) internal successors, (124), 62 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 02:20:44,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-22 02:20:44,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-22 02:20:44,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-22 02:20:44,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-08-22 02:20:44,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-08-22 02:20:44,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 02:21:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-22 02:21:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-22 02:21:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-22 02:21:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-08-22 02:21:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-08-22 02:21:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-08-22 02:21:29,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-22 02:21:29,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 02:21:29,544 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-22 02:21:29,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 02:21:29,544 INFO L82 PathProgramCache]: Analyzing trace with hash 944461095, now seen corresponding path program 7 times [2021-08-22 02:21:29,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 02:21:29,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575522941] [2021-08-22 02:21:29,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 02:21:29,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 02:21:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 02:21:35,047 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 22 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 02:21:35,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 02:21:35,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575522941] [2021-08-22 02:21:35,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575522941] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 02:21:35,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841149884] [2021-08-22 02:21:35,048 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-22 02:21:35,048 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 02:21:35,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 02:21:35,053 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-22 02:21:35,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-22 02:21:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 02:21:35,953 WARN L261 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 74 conjunts are in the unsatisfiable core [2021-08-22 02:21:35,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 02:21:36,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-08-22 02:21:36,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-08-22 02:21:36,415 INFO L354 Elim1Store]: treesize reduction 32, result has 25.6 percent of original size [2021-08-22 02:21:36,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 36 [2021-08-22 02:21:36,547 INFO L354 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2021-08-22 02:21:36,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 41 [2021-08-22 02:21:36,674 INFO L354 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2021-08-22 02:21:36,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 46 [2021-08-22 02:21:36,853 INFO L354 Elim1Store]: treesize reduction 88, result has 19.3 percent of original size [2021-08-22 02:21:36,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 50 treesize of output 61 [2021-08-22 02:21:37,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,081 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-22 02:21:37,105 INFO L354 Elim1Store]: treesize reduction 104, result has 9.6 percent of original size [2021-08-22 02:21:37,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 61 treesize of output 70 [2021-08-22 02:21:37,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,326 INFO L354 Elim1Store]: treesize reduction 104, result has 9.6 percent of original size [2021-08-22 02:21:37,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 65 treesize of output 79 [2021-08-22 02:21:37,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,587 INFO L354 Elim1Store]: treesize reduction 188, result has 15.7 percent of original size [2021-08-22 02:21:37,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 77 treesize of output 94 [2021-08-22 02:21:37,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,834 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-22 02:21:37,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:37,877 INFO L354 Elim1Store]: treesize reduction 198, result has 7.5 percent of original size [2021-08-22 02:21:37,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 88 treesize of output 101 [2021-08-22 02:21:38,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,236 INFO L354 Elim1Store]: treesize reduction 180, result has 8.2 percent of original size [2021-08-22 02:21:38,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 84 treesize of output 104 [2021-08-22 02:21:38,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:38,637 INFO L354 Elim1Store]: treesize reduction 296, result has 13.2 percent of original size [2021-08-22 02:21:38,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 96 treesize of output 119 [2021-08-22 02:21:39,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-22 02:21:39,154 INFO L354 Elim1Store]: treesize reduction 320, result has 6.2 percent of original size [2021-08-22 02:21:39,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 30 case distinctions, treesize of input 107 treesize of output 128 [2021-08-22 02:21:39,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:39,678 INFO L354 Elim1Store]: treesize reduction 296, result has 6.6 percent of original size [2021-08-22 02:21:39,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 30 case distinctions, treesize of input 107 treesize of output 133 [2021-08-22 02:21:40,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:40,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:40,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:40,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:40,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:40,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:40,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:40,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:40,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:40,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:40,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:40,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:40,266 INFO L354 Elim1Store]: treesize reduction 442, result has 11.4 percent of original size [2021-08-22 02:21:40,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 40 case distinctions, treesize of input 119 treesize of output 148 [2021-08-22 02:21:42,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,165 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-22 02:21:42,421 INFO L354 Elim1Store]: treesize reduction 470, result has 5.2 percent of original size [2021-08-22 02:21:42,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 15 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 130 treesize of output 157 [2021-08-22 02:21:42,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:42,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:43,191 INFO L354 Elim1Store]: treesize reduction 470, result has 5.2 percent of original size [2021-08-22 02:21:43,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 134 treesize of output 166 [2021-08-22 02:21:46,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-22 02:21:46,591 INFO L354 Elim1Store]: treesize reduction 632, result has 10.1 percent of original size [2021-08-22 02:21:46,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 21 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 57 case distinctions, treesize of input 141 treesize of output 176 [2021-08-22 02:22:10,234 WARN L224 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-08-22 02:22:10,235 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2021-08-22 02:22:10,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-08-22 02:22:10,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-22 02:22:10,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-08-22 02:22:10,436 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:934) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:438) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:235) ... 46 more [2021-08-22 02:22:10,439 INFO L168 Benchmark]: Toolchain (without parser) took 187888.59 ms. Allocated memory was 178.3 MB in the beginning and 587.2 MB in the end (delta: 408.9 MB). Free memory was 159.0 MB in the beginning and 378.3 MB in the end (delta: -219.3 MB). Peak memory consumption was 190.7 MB. Max. memory is 8.0 GB. [2021-08-22 02:22:10,439 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 178.3 MB. Free memory is still 160.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-22 02:22:10,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.79 ms. Allocated memory is still 178.3 MB. Free memory was 158.9 MB in the beginning and 157.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-22 02:22:10,440 INFO L168 Benchmark]: Boogie Preprocessor took 22.68 ms. Allocated memory is still 178.3 MB. Free memory was 157.5 MB in the beginning and 156.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-22 02:22:10,440 INFO L168 Benchmark]: RCFGBuilder took 232.85 ms. Allocated memory is still 178.3 MB. Free memory was 156.4 MB in the beginning and 143.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-22 02:22:10,440 INFO L168 Benchmark]: TraceAbstraction took 187597.18 ms. Allocated memory was 178.3 MB in the beginning and 587.2 MB in the end (delta: 408.9 MB). Free memory was 142.8 MB in the beginning and 378.3 MB in the end (delta: -235.5 MB). Peak memory consumption was 175.0 MB. Max. memory is 8.0 GB. [2021-08-22 02:22:10,441 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 0.19 ms. Allocated memory is still 178.3 MB. Free memory is still 160.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.79 ms. Allocated memory is still 178.3 MB. Free memory was 158.9 MB in the beginning and 157.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.68 ms. Allocated memory is still 178.3 MB. Free memory was 157.5 MB in the beginning and 156.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 232.85 ms. Allocated memory is still 178.3 MB. Free memory was 156.4 MB in the beginning and 143.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 187597.18 ms. Allocated memory was 178.3 MB in the beginning and 587.2 MB in the end (delta: 408.9 MB). Free memory was 142.8 MB in the beginning and 378.3 MB in the end (delta: -235.5 MB). Peak memory consumption was 175.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-22 02:22:10,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 Received shutdown request...