/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-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth07.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 21:25:28,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 21:25:28,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 21:25:28,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-24 21:25:28,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-24 21:25:28,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-24 21:25:28,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-24 21:25:28,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-24 21:25:28,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-24 21:25:28,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-24 21:25:28,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-24 21:25:28,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-24 21:25:28,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-24 21:25:28,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-24 21:25:28,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-24 21:25:28,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-24 21:25:28,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-24 21:25:28,231 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-NoLbe-Random42.epf [2021-06-24 21:25:28,278 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 21:25:28,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 21:25:28,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 21:25:28,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 21:25:28,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 21:25:28,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 21:25:28,281 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 21:25:28,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 21:25:28,281 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 21:25:28,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 21:25:28,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 21:25:28,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 21:25:28,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 21:25:28,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 21:25:28,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 21:25:28,282 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 21:25:28,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 21:25:28,282 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 21:25:28,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 21:25:28,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 21:25:28,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 21:25:28,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 21:25:28,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 21:25:28,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 21:25:28,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 21:25:28,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 21:25:28,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 21:25:28,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 21:25:28,284 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-24 21:25:28,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 21:25:28,284 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 21:25:28,284 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 21:25:28,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 21:25:28,284 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-24 21:25:28,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-24 21:25:28,284 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 21:25:28,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 21:25:28,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 21:25:28,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 21:25:28,545 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 21:25:28,546 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 21:25:28,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth07.bpl [2021-06-24 21:25:28,546 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth07.bpl' [2021-06-24 21:25:28,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 21:25:28,563 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 21:25:28,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 21:25:28,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 21:25:28,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 21:25:28,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 21:25:28,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 21:25:28,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 21:25:28,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 21:25:28,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 21:25:28,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 21:25:28,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 21:25:28,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 21:25:28,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 21:25:28,655 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 21:25:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 21:25:28,655 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 21:25:28,655 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 21:25:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 21:25:28,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 21:25:28,655 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 21:25:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 21:25:28,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 21:25:28,656 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-24 21:25:28,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 21:25:28,788 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 21:25:28,789 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-06-24 21:25:28,790 INFO L202 PluginConnector]: Adding new model bluetooth07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:25:28 BoogieIcfgContainer [2021-06-24 21:25:28,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 21:25:28,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 21:25:28,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 21:25:28,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 21:25:28,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/2) ... [2021-06-24 21:25:28,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220d7289 and model type bluetooth07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:25:28, skipping insertion in model container [2021-06-24 21:25:28,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:25:28" (2/2) ... [2021-06-24 21:25:28,795 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth07.bpl [2021-06-24 21:25:28,798 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 21:25:28,799 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 21:25:28,799 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 21:25:28,799 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 21:25:28,830 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 21:25:28,846 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 21:25:28,881 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 21:25:28,881 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 21:25:28,881 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 21:25:28,881 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 21:25:28,881 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 21:25:28,881 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 21:25:28,881 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 21:25:28,882 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork6======== [2021-06-24 21:25:29,554 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:29,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:29,562 INFO L82 PathProgramCache]: Analyzing trace with hash 723275347, now seen corresponding path program 1 times [2021-06-24 21:25:29,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:29,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476557192] [2021-06-24 21:25:29,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:29,667 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-06-24 21:25:29,668 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:29,668 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476557192] [2021-06-24 21:25:29,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476557192] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:25:29,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:25:29,669 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:25:29,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841739734] [2021-06-24 21:25:29,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:25:29,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:29,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:25:29,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:25:29,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:29,685 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:29,687 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-06-24 21:25:29,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:29,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 21:25:29,781 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:29,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:29,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1626294605, now seen corresponding path program 1 times [2021-06-24 21:25:29,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:29,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294147324] [2021-06-24 21:25:29,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 21:25:29,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:29,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294147324] [2021-06-24 21:25:29,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294147324] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:25:29,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:25:29,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:25:29,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78430322] [2021-06-24 21:25:29,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:25:29,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:29,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:25:29,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:25:29,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:29,803 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:29,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-06-24 21:25:29,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:29,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:32,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:32,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:32,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 21:25:32,336 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:32,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:32,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1176709777, now seen corresponding path program 1 times [2021-06-24 21:25:32,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:32,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386406100] [2021-06-24 21:25:32,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:32,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-24 21:25:32,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:32,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386406100] [2021-06-24 21:25:32,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386406100] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:25:32,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:25:32,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:25:32,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962021946] [2021-06-24 21:25:32,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:25:32,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:32,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:25:32,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:25:32,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:32,367 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:32,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 21:25:32,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:32,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:32,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:40,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:40,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:40,337 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-24 21:25:40,337 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:40,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:40,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1007227680, now seen corresponding path program 1 times [2021-06-24 21:25:40,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:40,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275716800] [2021-06-24 21:25:40,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-24 21:25:40,642 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:40,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275716800] [2021-06-24 21:25:40,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275716800] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 21:25:40,643 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698399313] [2021-06-24 21:25:40,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 21:25:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:40,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 30 conjunts are in the unsatisfiable core [2021-06-24 21:25:40,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 21:25:41,056 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-24 21:25:41,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698399313] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 21:25:41,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 21:25:41,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-06-24 21:25:41,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639511805] [2021-06-24 21:25:41,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-24 21:25:41,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:41,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-24 21:25:41,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-06-24 21:25:41,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:41,058 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:41,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 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) [2021-06-24 21:25:41,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:41,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:41,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:41,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:46,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:46,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:46,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:46,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-24 21:25:46,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 21:25:46,617 INFO L430 AbstractCegarLoop]: === Iteration 5 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:46,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:46,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1393927042, now seen corresponding path program 1 times [2021-06-24 21:25:46,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:46,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982148217] [2021-06-24 21:25:46,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:46,802 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 77 proven. 35 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-06-24 21:25:46,802 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:46,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982148217] [2021-06-24 21:25:46,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982148217] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 21:25:46,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780118905] [2021-06-24 21:25:46,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 21:25:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:46,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 75 conjunts are in the unsatisfiable core [2021-06-24 21:25:46,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 21:25:47,064 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 77 proven. 35 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-06-24 21:25:47,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780118905] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 21:25:47,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 21:25:47,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-06-24 21:25:47,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983236816] [2021-06-24 21:25:47,065 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-24 21:25:47,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:47,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-24 21:25:47,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-06-24 21:25:47,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:47,066 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:47,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 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) [2021-06-24 21:25:47,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:47,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:47,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:47,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-24 21:25:47,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:26:53,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:26:53,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:26:53,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:26:53,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-24 21:26:53,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-24 21:26:53,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 21:26:53,552 INFO L430 AbstractCegarLoop]: === Iteration 6 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:26:53,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:26:53,552 INFO L82 PathProgramCache]: Analyzing trace with hash -369900719, now seen corresponding path program 1 times [2021-06-24 21:26:53,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:26:53,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554638622] [2021-06-24 21:26:53,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:26:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:26:54,064 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 225 proven. 292 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-06-24 21:26:54,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:26:54,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554638622] [2021-06-24 21:26:54,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554638622] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 21:26:54,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716041094] [2021-06-24 21:26:54,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 21:26:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:26:54,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 140 conjunts are in the unsatisfiable core [2021-06-24 21:26:54,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 21:26:54,647 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 225 proven. 292 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-06-24 21:26:54,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716041094] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 21:26:54,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 21:26:54,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-06-24 21:26:54,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350831531] [2021-06-24 21:26:54,648 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-24 21:26:54,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:26:54,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-24 21:26:54,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-06-24 21:26:54,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:26:54,651 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:26:54,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 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) [2021-06-24 21:26:54,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:26:54,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:26:54,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:26:54,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-24 21:26:54,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-24 21:26:54,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.