/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr25.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 02:36:01,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 02:36:02,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 02:36:02,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-25 02:36:02,087 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf [2021-10-25 02:36:02,111 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 02:36:02,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 02:36:02,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 02:36:02,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 02:36:02,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 02:36:02,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 02:36:02,113 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 02:36:02,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 02:36:02,113 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 02:36:02,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 02:36:02,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 02:36:02,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 02:36:02,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 02:36:02,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 02:36:02,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 02:36:02,114 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 02:36:02,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 02:36:02,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 02:36:02,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 02:36:02,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 02:36:02,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 02:36:02,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 02:36:02,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 02:36:02,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 02:36:02,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 02:36:02,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 02:36:02,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 02:36:02,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 02:36:02,117 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-10-25 02:36:02,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 02:36:02,117 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 02:36:02,117 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 02:36:02,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 02:36:02,117 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 02:36:02,117 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 02:36:02,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 02:36:02,118 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 02:36:02,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 02:36:02,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 02:36:02,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 02:36:02,329 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-25 02:36:02,330 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-25 02:36:02,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr25.bpl [2021-10-25 02:36:02,331 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr25.bpl' [2021-10-25 02:36:02,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 02:36:02,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-25 02:36:02,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 02:36:02,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 02:36:02,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 02:36:02,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "incr-decr25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:36:02" (1/1) ... [2021-10-25 02:36:02,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "incr-decr25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:36:02" (1/1) ... [2021-10-25 02:36:02,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 02:36:02,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 02:36:02,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 02:36:02,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 02:36:02,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "incr-decr25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:36:02" (1/1) ... [2021-10-25 02:36:02,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "incr-decr25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:36:02" (1/1) ... [2021-10-25 02:36:02,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "incr-decr25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:36:02" (1/1) ... [2021-10-25 02:36:02,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "incr-decr25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:36:02" (1/1) ... [2021-10-25 02:36:02,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "incr-decr25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:36:02" (1/1) ... [2021-10-25 02:36:02,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "incr-decr25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:36:02" (1/1) ... [2021-10-25 02:36:02,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "incr-decr25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:36:02" (1/1) ... [2021-10-25 02:36:02,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 02:36:02,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 02:36:02,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 02:36:02,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 02:36:02,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "incr-decr25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:36:02" (1/1) ... [2021-10-25 02:36:02,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 02:36:02,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:36:02,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-25 02:36:02,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-25 02:36:02,452 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-25 02:36:02,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 02:36:02,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 02:36:02,453 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-10-25 02:36:02,453 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-10-25 02:36:02,453 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-10-25 02:36:02,453 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 02:36:02,666 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 02:36:02,666 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-25 02:36:02,668 INFO L202 PluginConnector]: Adding new model incr-decr25.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:36:02 BoogieIcfgContainer [2021-10-25 02:36:02,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 02:36:02,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 02:36:02,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 02:36:02,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 02:36:02,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:36:02" (1/2) ... [2021-10-25 02:36:02,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2876738b and model type incr-decr25.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:36:02, skipping insertion in model container [2021-10-25 02:36:02,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr25.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:36:02" (2/2) ... [2021-10-25 02:36:02,674 INFO L111 eAbstractionObserver]: Analyzing ICFG incr-decr25.bpl [2021-10-25 02:36:02,677 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 02:36:02,677 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 02:36:02,677 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 02:36:02,677 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 02:36:02,972 INFO L148 ThreadInstanceAdder]: Constructed 25 joinOtherThreadTransitions. [2021-10-25 02:36:03,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 02:36:03,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:36:03,008 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-25 02:36:03,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-25 02:36:03,047 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 02:36:03,058 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-25 02:36:03,058 INFO L340 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2021-10-25 02:36:06,943 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 22 more)] === [2021-10-25 02:36:06,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:36:06,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1983217155, now seen corresponding path program 1 times [2021-10-25 02:36:06,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:36:06,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118865087] [2021-10-25 02:36:06,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:36:06,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:36:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:36:13,402 INFO L134 CoverageAnalysis]: Checked inductivity of 9884 backedges. 0 proven. 8115 refuted. 0 times theorem prover too weak. 1769 trivial. 0 not checked. [2021-10-25 02:36:13,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:36:13,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118865087] [2021-10-25 02:36:13,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118865087] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:36:13,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070759956] [2021-10-25 02:36:13,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:36:13,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 02:36:13,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:36:13,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 02:36:13,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-25 02:36:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:36:14,175 WARN L261 TraceCheckSpWp]: Trace formula consists of 3154 conjuncts, 1827 conjunts are in the unsatisfiable core [2021-10-25 02:36:14,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 02:36:20,127 INFO L134 CoverageAnalysis]: Checked inductivity of 9884 backedges. 0 proven. 8115 refuted. 0 times theorem prover too weak. 1769 trivial. 0 not checked. [2021-10-25 02:36:20,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070759956] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:36:20,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 02:36:20,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-10-25 02:36:20,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216269571] [2021-10-25 02:36:20,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-25 02:36:20,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:36:20,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-25 02:36:20,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-10-25 02:36:20,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:36:20,151 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:36:20,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 34.625) internal successors, (554), 16 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 02:36:20,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.