/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 13:55:33,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:55:33,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:55:33,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:55:33,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:55:33,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:55:33,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:55:33,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:55:33,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:55:33,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:55:33,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:55:33,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:55:33,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:55:33,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:55:33,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:55:33,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:55:33,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:55:33,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:55:33,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:55:33,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:55:33,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:55:33,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:55:33,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:55:33,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:55:33,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 13:55:33,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:55:33,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:55:33,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:55:33,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 13:55:33,793 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:55:33,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:55:33,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:55:33,794 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:55:33,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:55:33,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:55:33,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:55:33,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:55:33,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:55:33,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:55:33,796 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:55:33,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:55:33,796 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:55:33,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:55:33,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:55:33,797 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:55:33,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:55:33,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:55:33,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:55:33,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:55:33,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:55:33,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:55:33,798 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:55:34,076 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:55:34,095 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:55:34,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:55:34,100 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:55:34,100 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:55:34,100 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label09.c [2020-07-17 13:55:34,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4ef92c97/b8d3a31d8b3c4532bddcbcf5ad733aa1/FLAG63c935e4a [2020-07-17 13:55:34,822 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:55:34,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label09.c [2020-07-17 13:55:34,836 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4ef92c97/b8d3a31d8b3c4532bddcbcf5ad733aa1/FLAG63c935e4a [2020-07-17 13:55:35,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4ef92c97/b8d3a31d8b3c4532bddcbcf5ad733aa1 [2020-07-17 13:55:35,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:55:35,019 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:55:35,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:55:35,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:55:35,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:55:35,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:55:35" (1/1) ... [2020-07-17 13:55:35,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df6c900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:55:35, skipping insertion in model container [2020-07-17 13:55:35,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:55:35" (1/1) ... [2020-07-17 13:55:35,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:55:35,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:55:35,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:55:35,482 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:55:35,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:55:35,719 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:55:35,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:55:35 WrapperNode [2020-07-17 13:55:35,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:55:35,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:55:35,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:55:35,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:55:35,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:55:35" (1/1) ... [2020-07-17 13:55:35,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:55:35" (1/1) ... [2020-07-17 13:55:35,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:55:35" (1/1) ... [2020-07-17 13:55:35,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:55:35" (1/1) ... [2020-07-17 13:55:35,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:55:35" (1/1) ... [2020-07-17 13:55:35,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:55:35" (1/1) ... [2020-07-17 13:55:35,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:55:35" (1/1) ... [2020-07-17 13:55:35,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:55:35,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:55:35,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:55:35,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:55:35,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:55:35" (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 [2020-07-17 13:55:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:55:35,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:55:35,968 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-17 13:55:35,968 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:55:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-17 13:55:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:55:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 13:55:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 13:55:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:55:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:55:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:55:37,338 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:55:37,339 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 13:55:37,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:55:37 BoogieIcfgContainer [2020-07-17 13:55:37,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:55:37,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:55:37,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:55:37,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:55:37,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:55:35" (1/3) ... [2020-07-17 13:55:37,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65474e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:55:37, skipping insertion in model container [2020-07-17 13:55:37,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:55:35" (2/3) ... [2020-07-17 13:55:37,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65474e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:55:37, skipping insertion in model container [2020-07-17 13:55:37,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:55:37" (3/3) ... [2020-07-17 13:55:37,357 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label09.c [2020-07-17 13:55:37,368 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:55:37,382 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:55:37,396 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:55:37,420 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:55:37,420 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:55:37,420 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:55:37,421 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:55:37,421 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:55:37,421 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:55:37,421 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:55:37,421 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:55:37,446 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-07-17 13:55:37,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-17 13:55:37,472 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:55:37,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:55:37,474 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:55:37,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:55:37,480 INFO L82 PathProgramCache]: Analyzing trace with hash -260189822, now seen corresponding path program 1 times [2020-07-17 13:55:37,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:55:37,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763446611] [2020-07-17 13:55:37,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:55:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:55:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:55:38,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:55:38,152 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:55:38,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763446611] [2020-07-17 13:55:38,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:55:38,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 13:55:38,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32839255] [2020-07-17 13:55:38,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 13:55:38,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:55:38,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 13:55:38,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:55:38,183 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 5 states. [2020-07-17 13:55:42,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:55:42,127 INFO L93 Difference]: Finished difference Result 1588 states and 2325 transitions. [2020-07-17 13:55:42,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 13:55:42,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-07-17 13:55:42,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:55:42,156 INFO L225 Difference]: With dead ends: 1588 [2020-07-17 13:55:42,157 INFO L226 Difference]: Without dead ends: 1000 [2020-07-17 13:55:42,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-17 13:55:42,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2020-07-17 13:55:42,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 931. [2020-07-17 13:55:42,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2020-07-17 13:55:42,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1122 transitions. [2020-07-17 13:55:42,364 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1122 transitions. Word has length 147 [2020-07-17 13:55:42,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:55:42,365 INFO L479 AbstractCegarLoop]: Abstraction has 931 states and 1122 transitions. [2020-07-17 13:55:42,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 13:55:42,366 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1122 transitions. [2020-07-17 13:55:42,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-17 13:55:42,375 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:55:42,376 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:55:42,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:55:42,376 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:55:42,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:55:42,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1750797015, now seen corresponding path program 1 times [2020-07-17 13:55:42,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:55:42,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416607719] [2020-07-17 13:55:42,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:55:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:55:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:55:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:55:42,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:55:42,754 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:55:42,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416607719] [2020-07-17 13:55:42,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:55:42,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 13:55:42,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569290863] [2020-07-17 13:55:42,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 13:55:42,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:55:42,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 13:55:42,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 13:55:42,761 INFO L87 Difference]: Start difference. First operand 931 states and 1122 transitions. Second operand 7 states. [2020-07-17 13:55:45,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:55:45,771 INFO L93 Difference]: Finished difference Result 2199 states and 2756 transitions. [2020-07-17 13:55:45,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 13:55:45,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-07-17 13:55:45,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:55:45,783 INFO L225 Difference]: With dead ends: 2199 [2020-07-17 13:55:45,784 INFO L226 Difference]: Without dead ends: 1290 [2020-07-17 13:55:45,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-07-17 13:55:45,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2020-07-17 13:55:45,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1237. [2020-07-17 13:55:45,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1237 states. [2020-07-17 13:55:45,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1479 transitions. [2020-07-17 13:55:45,934 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1479 transitions. Word has length 164 [2020-07-17 13:55:45,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:55:45,935 INFO L479 AbstractCegarLoop]: Abstraction has 1237 states and 1479 transitions. [2020-07-17 13:55:45,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 13:55:45,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1479 transitions. [2020-07-17 13:55:45,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-17 13:55:45,943 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:55:45,943 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:55:45,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:55:45,944 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:55:45,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:55:45,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1640166086, now seen corresponding path program 1 times [2020-07-17 13:55:45,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:55:45,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765152258] [2020-07-17 13:55:45,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:55:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:55:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:55:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:55:46,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:55:46,209 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:55:46,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765152258] [2020-07-17 13:55:46,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:55:46,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 13:55:46,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437179341] [2020-07-17 13:55:46,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 13:55:46,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:55:46,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 13:55:46,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:55:46,212 INFO L87 Difference]: Start difference. First operand 1237 states and 1479 transitions. Second operand 5 states. [2020-07-17 13:55:48,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:55:48,076 INFO L93 Difference]: Finished difference Result 3370 states and 4174 transitions. [2020-07-17 13:55:48,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 13:55:48,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 185 [2020-07-17 13:55:48,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:55:48,097 INFO L225 Difference]: With dead ends: 3370 [2020-07-17 13:55:48,097 INFO L226 Difference]: Without dead ends: 2155 [2020-07-17 13:55:48,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-17 13:55:48,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2020-07-17 13:55:48,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 1993. [2020-07-17 13:55:48,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1993 states. [2020-07-17 13:55:48,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2412 transitions. [2020-07-17 13:55:48,369 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2412 transitions. Word has length 185 [2020-07-17 13:55:48,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:55:48,370 INFO L479 AbstractCegarLoop]: Abstraction has 1993 states and 2412 transitions. [2020-07-17 13:55:48,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 13:55:48,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2412 transitions. [2020-07-17 13:55:48,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-07-17 13:55:48,380 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:55:48,381 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:55:48,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 13:55:48,382 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:55:48,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:55:48,382 INFO L82 PathProgramCache]: Analyzing trace with hash -262500214, now seen corresponding path program 1 times [2020-07-17 13:55:48,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:55:48,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187184417] [2020-07-17 13:55:48,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:55:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:55:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:55:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:55:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:55:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:55:49,533 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-17 13:55:49,731 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 13:55:49,970 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-07-17 13:55:50,418 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-07-17 13:55:50,792 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-07-17 13:55:51,029 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 13:55:51,283 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 13:55:51,553 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 13:55:52,081 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-07-17 13:55:52,397 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 13:55:52,726 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 13:55:53,101 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 13:55:53,810 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-07-17 13:55:54,492 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 13:55:55,216 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 13:55:55,995 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-07-17 13:55:56,456 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-07-17 13:55:57,240 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-07-17 13:55:57,727 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-17 13:55:58,244 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-17 13:55:59,220 WARN L193 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-07-17 13:56:00,058 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2020-07-17 13:56:00,951 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 93 [2020-07-17 13:56:01,912 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 94 [2020-07-17 13:56:02,522 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 13:56:03,546 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 96 [2020-07-17 13:56:04,634 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-07-17 13:56:05,704 WARN L193 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-07-17 13:56:06,784 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-07-17 13:56:07,460 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-07-17 13:56:08,174 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-07-17 13:56:09,388 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 13:56:10,167 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-07-17 13:56:11,465 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 13:56:12,733 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 13:56:14,006 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 13:56:14,816 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-17 13:56:15,624 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 13:56:16,958 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2020-07-17 13:56:18,732 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-07-17 13:56:20,027 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 13:56:21,350 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2020-07-17 13:56:22,171 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 13:56:23,016 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 13:56:24,425 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 13:56:25,911 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-07-17 13:56:27,293 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 13:56:29,190 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 106 DAG size of output: 105 [2020-07-17 13:56:30,577 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 13:56:31,996 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 111 DAG size of output: 106 [2020-07-17 13:56:33,447 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 13:56:34,921 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-07-17 13:56:36,340 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 13:56:38,228 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 13:56:39,536 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-07-17 13:56:40,829 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-07-17 13:56:42,083 WARN L193 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2020-07-17 13:56:43,472 WARN L193 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 13:56:44,808 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 13:56:46,615 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 13:56:47,943 WARN L193 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 13:56:49,289 WARN L193 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 13:56:50,596 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 13:56:51,911 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-07-17 13:56:53,257 WARN L193 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 13:56:54,888 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2020-07-17 13:56:56,122 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-07-17 13:56:57,357 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-07-17 13:56:58,944 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2020-07-17 13:57:00,051 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-07-17 13:57:01,021 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-07-17 13:57:01,827 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-07-17 13:57:02,534 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2020-07-17 13:57:03,279 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2020-07-17 13:57:04,133 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-07-17 13:57:04,726 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-17 13:57:05,505 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2020-07-17 13:57:06,158 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-07-17 13:57:06,817 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 13:57:07,671 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-07-17 13:57:08,527 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-07-17 13:57:09,405 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-07-17 13:57:10,327 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-07-17 13:57:11,257 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2020-07-17 13:57:12,012 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 13:57:12,777 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 13:57:13,577 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 13:57:14,385 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 13:57:15,483 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-07-17 13:57:16,314 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 13:57:17,460 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 81 [2020-07-17 13:57:18,620 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-07-17 13:57:19,810 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2020-07-17 13:57:21,043 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2020-07-17 13:57:22,275 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-07-17 13:57:23,568 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 13:57:24,857 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 13:57:25,817 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 13:57:27,167 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 13:57:28,190 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 13:57:29,657 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 13:57:31,048 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-07-17 13:57:32,480 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 13:57:33,957 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 13:57:35,434 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-07-17 13:57:36,897 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 13:57:38,347 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-07-17 13:57:39,769 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-07-17 13:57:41,214 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-07-17 13:57:42,620 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-07-17 13:57:43,720 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 13:57:45,169 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 13:57:45,963 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 39 [2020-07-17 13:57:45,964 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:57:45,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187184417] [2020-07-17 13:57:45,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:57:45,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [132] imperfect sequences [] total 132 [2020-07-17 13:57:45,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15932822] [2020-07-17 13:57:45,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 133 states [2020-07-17 13:57:45,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:57:45,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2020-07-17 13:57:45,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7424, Invalid=10132, Unknown=0, NotChecked=0, Total=17556 [2020-07-17 13:57:45,977 INFO L87 Difference]: Start difference. First operand 1993 states and 2412 transitions. Second operand 133 states. [2020-07-17 13:57:48,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:57:48,884 INFO L93 Difference]: Finished difference Result 4463 states and 5453 transitions. [2020-07-17 13:57:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 13:57:48,891 INFO L78 Accepts]: Start accepts. Automaton has 133 states. Word has length 202 [2020-07-17 13:57:48,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:57:48,911 INFO L225 Difference]: With dead ends: 4463 [2020-07-17 13:57:48,911 INFO L226 Difference]: Without dead ends: 2128 [2020-07-17 13:57:48,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1612 ImplicationChecksByTransitivity, 117.4s TimeCoverageRelationStatistics Valid=7454, Invalid=11452, Unknown=0, NotChecked=0, Total=18906 [2020-07-17 13:57:48,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2020-07-17 13:57:49,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 1956. [2020-07-17 13:57:49,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1956 states. [2020-07-17 13:57:49,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2249 transitions. [2020-07-17 13:57:49,210 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 2249 transitions. Word has length 202 [2020-07-17 13:57:49,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:57:49,211 INFO L479 AbstractCegarLoop]: Abstraction has 1956 states and 2249 transitions. [2020-07-17 13:57:49,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 133 states. [2020-07-17 13:57:49,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 2249 transitions. [2020-07-17 13:57:49,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-07-17 13:57:49,219 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:57:49,219 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:57:49,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 13:57:49,219 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:57:49,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:57:49,220 INFO L82 PathProgramCache]: Analyzing trace with hash -442139007, now seen corresponding path program 1 times [2020-07-17 13:57:49,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:57:49,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648789251] [2020-07-17 13:57:49,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:57:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:57:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:57:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:57:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:57:49,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:57:50,089 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-07-17 13:57:50,270 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-07-17 13:57:50,482 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-17 13:57:50,702 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 13:57:50,917 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-07-17 13:57:51,289 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-07-17 13:57:51,708 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-07-17 13:57:51,970 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 13:57:52,248 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 13:57:52,561 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 13:57:53,150 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-07-17 13:57:53,510 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 13:57:53,917 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 13:57:54,316 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 13:57:55,067 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-07-17 13:57:55,843 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 13:57:56,692 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-07-17 13:57:57,574 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-07-17 13:57:58,086 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-17 13:57:58,979 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-07-17 13:57:59,528 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-07-17 13:58:00,087 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 13:58:01,117 WARN L193 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-07-17 13:58:02,067 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2020-07-17 13:58:03,037 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 94 [2020-07-17 13:58:04,030 WARN L193 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 95 [2020-07-17 13:58:04,650 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-07-17 13:58:05,759 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2020-07-17 13:58:06,884 WARN L193 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-07-17 13:58:08,049 WARN L193 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-07-17 13:58:09,215 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 99 [2020-07-17 13:58:09,928 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-07-17 13:58:10,676 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-07-17 13:58:11,964 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 13:58:12,768 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-07-17 13:58:14,129 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 13:58:15,501 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 13:58:16,889 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 13:58:17,766 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 13:58:18,654 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 13:58:20,150 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2020-07-17 13:58:22,097 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-07-17 13:58:23,578 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 13:58:25,020 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 13:58:25,924 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 13:58:26,913 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-07-17 13:58:28,505 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-07-17 13:58:30,169 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2020-07-17 13:58:31,704 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-07-17 13:58:33,805 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 13:58:35,388 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 13:58:36,981 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2020-07-17 13:58:38,604 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-07-17 13:58:40,275 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 109 DAG size of output: 109 [2020-07-17 13:58:41,905 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-07-17 13:58:44,064 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-07-17 13:58:45,569 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-07-17 13:58:47,010 WARN L193 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-07-17 13:58:48,459 WARN L193 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-07-17 13:58:49,967 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 13:58:51,487 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-07-17 13:58:53,459 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 13:58:54,980 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 13:58:56,487 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-07-17 13:58:57,981 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 13:58:59,489 WARN L193 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 13:59:01,024 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 13:59:02,879 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2020-07-17 13:59:04,283 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-07-17 13:59:05,700 WARN L193 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 99 [2020-07-17 13:59:07,526 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2020-07-17 13:59:08,796 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-07-17 13:59:09,913 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2020-07-17 13:59:10,806 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2020-07-17 13:59:11,617 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2020-07-17 13:59:12,496 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2020-07-17 13:59:13,485 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-07-17 13:59:14,177 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 13:59:15,068 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-07-17 13:59:15,809 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 13:59:16,564 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 13:59:17,554 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-07-17 13:59:18,521 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-07-17 13:59:19,525 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-07-17 13:59:20,571 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 76 [2020-07-17 13:59:21,643 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-07-17 13:59:22,498 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 13:59:23,391 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 13:59:24,284 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 13:59:25,197 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 13:59:26,430 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2020-07-17 13:59:27,362 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 13:59:28,644 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2020-07-17 13:59:29,953 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-07-17 13:59:31,278 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2020-07-17 13:59:32,640 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 13:59:34,034 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 13:59:35,493 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-07-17 13:59:36,938 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 13:59:38,036 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 13:59:39,550 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 13:59:40,703 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 13:59:42,330 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-07-17 13:59:43,977 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-07-17 13:59:45,688 WARN L193 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 13:59:47,470 WARN L193 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-07-17 13:59:49,149 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-07-17 13:59:50,808 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-07-17 13:59:52,450 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-07-17 13:59:54,111 WARN L193 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 13:59:55,704 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-07-17 13:59:57,234 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-07-17 13:59:58,419 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 13:59:59,993 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:00:00,803 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 39 [2020-07-17 14:00:00,805 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:00:00,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648789251] [2020-07-17 14:00:00,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:00:00,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [131] imperfect sequences [] total 131 [2020-07-17 14:00:00,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834629328] [2020-07-17 14:00:00,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 132 states [2020-07-17 14:00:00,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:00:00,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2020-07-17 14:00:00,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7420, Invalid=9872, Unknown=0, NotChecked=0, Total=17292 [2020-07-17 14:00:00,813 INFO L87 Difference]: Start difference. First operand 1956 states and 2249 transitions. Second operand 132 states. [2020-07-17 14:00:02,983 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-07-17 14:00:03,240 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-07-17 14:00:03,535 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2020-07-17 14:00:03,916 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 103 [2020-07-17 14:00:04,513 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 104 [2020-07-17 14:00:05,008 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-07-17 14:00:05,507 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 111 [2020-07-17 14:00:06,066 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-07-17 14:00:06,884 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-07-17 14:00:07,730 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2020-07-17 14:00:08,548 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-07-17 14:00:09,053 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-07-17 14:00:09,953 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 114 [2020-07-17 14:00:10,781 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 119 [2020-07-17 14:00:11,596 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 120 [2020-07-17 14:00:12,515 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 121 [2020-07-17 14:00:13,408 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 125 [2020-07-17 14:00:14,382 WARN L193 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 125 [2020-07-17 14:00:15,354 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 126 [2020-07-17 14:00:16,357 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 130 [2020-07-17 14:00:17,414 WARN L193 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 131 [2020-07-17 14:00:18,600 WARN L193 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 134 [2020-07-17 14:00:19,762 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 135 [2020-07-17 14:00:20,886 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 134 [2020-07-17 14:00:22,086 WARN L193 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 135 [2020-07-17 14:00:23,308 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 139 DAG size of output: 136 [2020-07-17 14:00:23,542 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-07-17 14:00:24,743 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2020-07-17 14:00:26,112 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 143 DAG size of output: 138 [2020-07-17 14:00:27,516 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 143 DAG size of output: 138 [2020-07-17 14:00:28,897 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 144 DAG size of output: 139 [2020-07-17 14:00:29,155 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2020-07-17 14:00:30,550 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 145 DAG size of output: 140 [2020-07-17 14:00:32,053 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 147 DAG size of output: 141 [2020-07-17 14:00:33,880 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 147 DAG size of output: 141 [2020-07-17 14:00:35,391 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 148 DAG size of output: 142 [2020-07-17 14:00:35,955 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2020-07-17 14:00:36,294 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2020-07-17 14:00:37,904 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 150 DAG size of output: 143 [2020-07-17 14:00:39,492 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 14:00:40,945 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 147 DAG size of output: 141 [2020-07-17 14:00:42,446 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 148 DAG size of output: 142 [2020-07-17 14:00:44,011 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 149 DAG size of output: 144 [2020-07-17 14:00:45,623 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 150 DAG size of output: 145 [2020-07-17 14:00:47,313 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-07-17 14:00:49,036 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-07-17 14:00:50,835 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-07-17 14:00:52,482 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 150 DAG size of output: 144 [2020-07-17 14:00:54,379 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 151 DAG size of output: 145 [2020-07-17 14:00:56,193 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 152 DAG size of output: 146 [2020-07-17 14:00:57,944 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 153 DAG size of output: 146 [2020-07-17 14:00:59,533 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 150 DAG size of output: 143 [2020-07-17 14:01:01,150 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 14:01:03,342 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2020-07-17 14:01:05,576 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 145 DAG size of output: 137 [2020-07-17 14:01:07,593 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 145 DAG size of output: 137 [2020-07-17 14:01:09,699 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2020-07-17 14:01:09,917 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-07-17 14:01:12,010 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 147 DAG size of output: 139 [2020-07-17 14:01:14,269 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 148 DAG size of output: 140 [2020-07-17 14:01:14,848 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-07-17 14:01:16,941 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 146 DAG size of output: 140 [2020-07-17 14:01:19,374 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 147 DAG size of output: 141 [2020-07-17 14:01:19,950 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-07-17 14:01:21,642 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 142 DAG size of output: 133 [2020-07-17 14:01:23,474 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2020-07-17 14:01:25,313 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2020-07-17 14:01:25,884 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2020-07-17 14:01:27,630 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 141 DAG size of output: 130 [2020-07-17 14:01:28,993 WARN L193 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 125 [2020-07-17 14:01:30,397 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 108 [2020-07-17 14:01:31,026 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-07-17 14:01:31,844 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-07-17 14:01:33,390 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-07-17 14:01:34,310 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 113 [2020-07-17 14:01:35,212 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-07-17 14:01:36,258 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 113 [2020-07-17 14:01:37,568 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 113 [2020-07-17 14:01:38,576 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-07-17 14:01:39,611 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2020-07-17 14:01:40,673 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 116 [2020-07-17 14:01:41,774 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 115 [2020-07-17 14:01:43,324 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2020-07-17 14:01:44,427 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 115 [2020-07-17 14:01:45,632 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 116 [2020-07-17 14:01:46,929 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 117 [2020-07-17 14:01:48,248 WARN L193 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2020-07-17 14:01:49,476 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2020-07-17 14:01:50,679 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 118 [2020-07-17 14:01:51,837 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 117 [2020-07-17 14:01:52,929 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 116 [2020-07-17 14:01:53,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:01:53,947 INFO L93 Difference]: Finished difference Result 6918 states and 8360 transitions. [2020-07-17 14:01:53,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2020-07-17 14:01:53,953 INFO L78 Accepts]: Start accepts. Automaton has 132 states. Word has length 207 [2020-07-17 14:01:53,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:01:53,991 INFO L225 Difference]: With dead ends: 6918 [2020-07-17 14:01:53,991 INFO L226 Difference]: Without dead ends: 3226 [2020-07-17 14:01:54,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14450 ImplicationChecksByTransitivity, 232.8s TimeCoverageRelationStatistics Valid=17014, Invalid=46742, Unknown=0, NotChecked=0, Total=63756 [2020-07-17 14:01:54,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2020-07-17 14:01:54,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3124. [2020-07-17 14:01:54,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3124 states. [2020-07-17 14:01:54,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 3593 transitions. [2020-07-17 14:01:54,949 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 3593 transitions. Word has length 207 [2020-07-17 14:01:54,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:01:54,949 INFO L479 AbstractCegarLoop]: Abstraction has 3124 states and 3593 transitions. [2020-07-17 14:01:54,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 132 states. [2020-07-17 14:01:54,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 3593 transitions. [2020-07-17 14:01:54,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-17 14:01:54,963 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:01:54,964 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:01:54,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 14:01:54,964 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:01:54,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:01:54,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1189920184, now seen corresponding path program 1 times [2020-07-17 14:01:54,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:01:54,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285708089] [2020-07-17 14:01:54,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:01:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:01:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:01:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:01:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:01:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:01:56,310 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-07-17 14:01:56,492 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-07-17 14:01:56,706 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-07-17 14:01:56,950 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-07-17 14:01:57,433 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-07-17 14:01:57,980 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-07-17 14:01:58,316 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 14:01:58,690 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-07-17 14:01:59,089 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:01:59,858 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-07-17 14:02:00,307 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 14:02:00,785 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-17 14:02:01,300 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 14:02:02,302 WARN L193 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-07-17 14:02:03,266 WARN L193 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-07-17 14:02:04,342 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 14:02:05,480 WARN L193 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-07-17 14:02:06,152 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 14:02:07,351 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-07-17 14:02:08,065 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-07-17 14:02:08,825 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-07-17 14:02:10,187 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-07-17 14:02:11,418 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 97 DAG size of output: 90 [2020-07-17 14:02:12,760 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-07-17 14:02:14,155 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2020-07-17 14:02:14,973 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-17 14:02:16,393 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 94 DAG size of output: 94 [2020-07-17 14:02:17,882 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-07-17 14:02:19,422 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 96 DAG size of output: 96 [2020-07-17 14:02:20,968 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2020-07-17 14:02:21,903 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-07-17 14:02:22,864 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-07-17 14:02:24,544 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-07-17 14:02:25,582 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-07-17 14:02:27,371 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2020-07-17 14:02:29,186 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2020-07-17 14:02:31,032 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 14:02:32,154 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-07-17 14:02:33,331 WARN L193 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-07-17 14:02:35,286 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-07-17 14:02:37,864 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 103 DAG size of output: 100 [2020-07-17 14:02:39,760 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 14:02:41,697 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2020-07-17 14:02:42,926 WARN L193 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-07-17 14:02:44,195 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-17 14:02:46,323 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 105 DAG size of output: 105 [2020-07-17 14:02:48,562 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-07-17 14:02:50,643 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-07-17 14:02:53,542 WARN L193 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:02:55,692 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 14:02:57,897 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 109 DAG size of output: 104 [2020-07-17 14:03:00,124 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 105 DAG size of output: 105 [2020-07-17 14:03:02,421 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 14:03:04,593 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-07-17 14:03:07,549 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:03:09,577 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 106 DAG size of output: 99 [2020-07-17 14:03:11,568 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-07-17 14:03:13,583 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-07-17 14:03:15,701 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-07-17 14:03:17,816 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-07-17 14:03:20,612 WARN L193 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-07-17 14:03:22,761 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 14:03:24,926 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-07-17 14:03:27,047 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-07-17 14:03:29,197 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-07-17 14:03:31,392 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2020-07-17 14:03:34,068 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-07-17 14:03:36,078 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 96 DAG size of output: 96 [2020-07-17 14:03:38,108 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2020-07-17 14:03:40,742 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-07-17 14:03:42,599 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-07-17 14:03:44,254 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-07-17 14:03:45,540 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2020-07-17 14:03:46,730 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2020-07-17 14:03:48,013 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2020-07-17 14:03:49,464 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2020-07-17 14:03:50,435 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-07-17 14:03:51,762 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2020-07-17 14:03:52,865 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-17 14:03:53,991 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 14:03:55,475 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-07-17 14:03:56,979 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-07-17 14:03:58,467 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-07-17 14:04:00,053 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-07-17 14:04:01,653 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-07-17 14:04:02,935 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 14:04:04,242 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-07-17 14:04:05,606 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:04:07,011 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:04:08,908 WARN L193 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2020-07-17 14:04:10,300 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:04:12,258 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 79 DAG size of output: 79 [2020-07-17 14:04:14,255 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-07-17 14:04:16,256 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 80 DAG size of output: 80 [2020-07-17 14:04:18,364 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 81 DAG size of output: 81 [2020-07-17 14:04:20,503 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-07-17 14:04:22,785 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2020-07-17 14:04:24,991 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-07-17 14:04:26,633 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 14:04:28,964 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:04:30,686 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:04:33,154 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 14:04:35,592 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-07-17 14:04:38,167 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-07-17 14:04:40,809 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 14:04:43,358 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-07-17 14:04:45,941 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:04:48,514 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-07-17 14:04:51,132 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:04:53,653 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-07-17 14:04:56,078 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-07-17 14:04:57,934 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-17 14:05:00,438 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-07-17 14:05:01,491 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 36 [2020-07-17 14:05:01,492 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:05:01,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [285708089] [2020-07-17 14:05:01,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:05:01,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [139] imperfect sequences [] total 139 [2020-07-17 14:05:01,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412796511] [2020-07-17 14:05:01,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 140 states [2020-07-17 14:05:01,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:05:01,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2020-07-17 14:05:01,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7345, Invalid=12115, Unknown=0, NotChecked=0, Total=19460 [2020-07-17 14:05:01,497 INFO L87 Difference]: Start difference. First operand 3124 states and 3593 transitions. Second operand 140 states. [2020-07-17 14:05:02,314 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:05:02,451 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:05:02,604 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-07-17 14:05:02,843 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 14:05:03,396 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 101 [2020-07-17 14:05:04,012 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-07-17 14:05:04,652 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 108 [2020-07-17 14:05:05,448 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 109 [2020-07-17 14:05:06,436 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2020-07-17 14:05:07,204 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 112 [2020-07-17 14:05:08,256 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-07-17 14:05:09,772 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-07-17 14:05:11,407 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 122 DAG size of output: 116 [2020-07-17 14:05:12,650 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-07-17 14:05:13,938 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 127 DAG size of output: 122 [2020-07-17 14:05:15,288 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2020-07-17 14:05:16,754 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 130 DAG size of output: 124 [2020-07-17 14:05:18,335 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 131 DAG size of output: 125 [2020-07-17 14:05:19,881 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 132 DAG size of output: 126 [2020-07-17 14:05:21,520 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 133 DAG size of output: 127 [2020-07-17 14:05:23,251 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 134 DAG size of output: 128 [2020-07-17 14:05:24,983 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 135 DAG size of output: 128 [2020-07-17 14:05:26,839 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 138 DAG size of output: 131 [2020-07-17 14:05:28,742 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 139 DAG size of output: 132 [2020-07-17 14:05:30,445 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 137 DAG size of output: 129 [2020-07-17 14:05:32,230 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 138 DAG size of output: 130 [2020-07-17 14:05:34,072 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 139 DAG size of output: 131 [2020-07-17 14:05:36,036 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 141 DAG size of output: 132 [2020-07-17 14:05:38,082 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 142 DAG size of output: 133 [2020-07-17 14:05:40,098 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 142 DAG size of output: 133 [2020-07-17 14:05:42,208 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2020-07-17 14:05:44,405 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 145 DAG size of output: 135 [2020-07-17 14:05:46,713 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 146 DAG size of output: 136 [2020-07-17 14:05:48,944 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 146 DAG size of output: 136 [2020-07-17 14:05:51,245 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 146 DAG size of output: 136 [2020-07-17 14:05:53,603 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 148 DAG size of output: 137 [2020-07-17 14:05:56,121 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 149 DAG size of output: 138 [2020-07-17 14:05:58,531 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 148 DAG size of output: 137 [2020-07-17 14:06:00,828 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2020-07-17 14:06:03,160 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 147 DAG size of output: 136 [2020-07-17 14:06:05,571 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 148 DAG size of output: 137 [2020-07-17 14:06:08,069 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 150 DAG size of output: 138 [2020-07-17 14:06:10,699 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 152 DAG size of output: 139 [2020-07-17 14:06:13,118 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-07-17 14:06:15,521 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-07-17 14:06:16,971 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-07-17 14:06:19,414 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 150 DAG size of output: 137 [2020-07-17 14:06:21,929 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 150 DAG size of output: 137 [2020-07-17 14:06:24,507 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 151 DAG size of output: 138 [2020-07-17 14:06:27,137 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2020-07-17 14:06:29,764 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 145 DAG size of output: 138 [2020-07-17 14:06:32,259 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 144 DAG size of output: 137 [2020-07-17 14:06:34,880 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 144 DAG size of output: 137 [2020-07-17 14:06:37,517 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 147 DAG size of output: 140 [2020-07-17 14:06:40,172 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 147 DAG size of output: 140 [2020-07-17 14:06:42,811 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 147 DAG size of output: 139 [2020-07-17 14:06:45,456 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 147 DAG size of output: 139 [2020-07-17 14:06:48,929 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 146 DAG size of output: 136 [2020-07-17 14:06:52,474 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2020-07-17 14:06:55,429 WARN L193 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 141 DAG size of output: 130 [2020-07-17 14:06:58,480 WARN L193 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 142 DAG size of output: 131 [2020-07-17 14:07:01,530 WARN L193 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 142 DAG size of output: 130 [2020-07-17 14:07:04,416 WARN L193 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2020-07-17 14:07:06,729 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 130 DAG size of output: 121 [2020-07-17 14:07:08,174 WARN L193 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 102 [2020-07-17 14:07:09,657 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 113 DAG size of output: 103 [2020-07-17 14:07:11,293 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-07-17 14:07:12,513 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2020-07-17 14:07:13,818 WARN L193 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 109 [2020-07-17 14:07:15,228 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-07-17 14:07:16,676 WARN L193 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 111 [2020-07-17 14:07:18,210 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 117 DAG size of output: 112 [2020-07-17 14:07:19,754 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 117 DAG size of output: 112 [2020-07-17 14:07:21,328 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 117 DAG size of output: 112 [2020-07-17 14:07:23,011 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 118 DAG size of output: 113 [2020-07-17 14:07:24,636 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 119 DAG size of output: 114 [2020-07-17 14:07:26,371 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 119 DAG size of output: 114 [2020-07-17 14:07:28,176 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 120 DAG size of output: 115 [2020-07-17 14:07:30,008 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-07-17 14:07:31,946 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-07-17 14:07:33,969 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-07-17 14:07:36,000 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-07-17 14:07:38,130 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 124 DAG size of output: 119 [2020-07-17 14:07:40,315 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 125 DAG size of output: 120 [2020-07-17 14:07:42,507 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 125 DAG size of output: 120 [2020-07-17 14:07:44,713 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 126 DAG size of output: 121 [2020-07-17 14:07:47,050 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 127 DAG size of output: 122 [2020-07-17 14:07:49,411 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 127 DAG size of output: 122 [2020-07-17 14:07:51,824 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2020-07-17 14:07:54,276 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2020-07-17 14:07:56,774 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 129 DAG size of output: 124 [2020-07-17 14:07:59,407 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 130 DAG size of output: 125 [2020-07-17 14:08:02,097 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 131 DAG size of output: 126 [2020-07-17 14:08:04,871 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 132 DAG size of output: 127 [2020-07-17 14:08:07,532 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 130 DAG size of output: 125 [2020-07-17 14:08:10,310 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 131 DAG size of output: 126 [2020-07-17 14:08:13,185 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 132 DAG size of output: 127 [2020-07-17 14:08:15,954 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 131 DAG size of output: 126 [2020-07-17 14:08:18,775 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 131 DAG size of output: 126 [2020-07-17 14:08:21,524 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 130 DAG size of output: 125 [2020-07-17 14:08:24,390 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 130 DAG size of output: 125 [2020-07-17 14:08:27,122 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 129 DAG size of output: 124 [2020-07-17 14:08:29,662 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 127 DAG size of output: 122 [2020-07-17 14:08:32,312 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2020-07-17 14:08:34,840 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2020-07-17 14:08:35,554 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:08:35,922 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2020-07-17 14:08:35,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:08:35,970 INFO L93 Difference]: Finished difference Result 3283 states and 3757 transitions. [2020-07-17 14:08:35,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2020-07-17 14:08:35,974 INFO L78 Accepts]: Start accepts. Automaton has 140 states. Word has length 220 [2020-07-17 14:08:35,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:08:35,974 INFO L225 Difference]: With dead ends: 3283 [2020-07-17 14:08:35,974 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 14:08:35,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11665 ImplicationChecksByTransitivity, 396.7s TimeCoverageRelationStatistics Valid=20241, Invalid=43515, Unknown=0, NotChecked=0, Total=63756 [2020-07-17 14:08:35,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 14:08:35,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 14:08:35,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 14:08:35,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 14:08:35,992 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 220 [2020-07-17 14:08:35,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:08:35,993 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 14:08:35,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 140 states. [2020-07-17 14:08:35,993 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 14:08:35,993 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 14:08:35,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 14:08:35,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.