/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_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 14:07:24,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 14:07:24,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 14:07:24,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 14:07:24,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 14:07:24,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 14:07:24,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 14:07:24,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 14:07:24,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 14:07:24,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 14:07:24,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 14:07:24,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 14:07:24,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 14:07:24,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 14:07:24,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 14:07:24,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 14:07:24,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 14:07:24,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 14:07:24,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 14:07:24,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 14:07:24,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 14:07:24,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 14:07:24,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 14:07:24,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 14:07:24,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 14:07:24,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 14:07:24,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 14:07:24,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 14:07:24,484 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 14:07:24,495 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 14:07:24,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 14:07:24,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 14:07:24,498 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 14:07:24,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 14:07:24,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 14:07:24,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 14:07:24,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 14:07:24,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 14:07:24,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 14:07:24,499 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 14:07:24,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 14:07:24,500 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 14:07:24,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 14:07:24,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 14:07:24,500 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 14:07:24,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 14:07:24,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 14:07:24,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 14:07:24,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 14:07:24,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 14:07:24,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 14:07:24,502 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 14:07:24,846 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 14:07:24,862 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 14:07:24,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 14:07:24,869 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 14:07:24,870 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 14:07:24,871 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-17 14:07:24,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aab368760/f0c2a0a8f3db4c5f8a99c66211560712/FLAG2828d568d [2020-07-17 14:07:25,633 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 14:07:25,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-17 14:07:25,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aab368760/f0c2a0a8f3db4c5f8a99c66211560712/FLAG2828d568d [2020-07-17 14:07:25,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aab368760/f0c2a0a8f3db4c5f8a99c66211560712 [2020-07-17 14:07:25,911 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 14:07:25,916 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 14:07:25,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 14:07:25,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 14:07:25,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 14:07:25,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:07:25" (1/1) ... [2020-07-17 14:07:25,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba8ccf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:07:25, skipping insertion in model container [2020-07-17 14:07:25,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:07:25" (1/1) ... [2020-07-17 14:07:25,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 14:07:25,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 14:07:26,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:07:26,490 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 14:07:26,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:07:26,801 INFO L208 MainTranslator]: Completed translation [2020-07-17 14:07:26,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:07:26 WrapperNode [2020-07-17 14:07:26,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 14:07:26,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 14:07:26,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 14:07:26,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 14:07:26,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:07:26" (1/1) ... [2020-07-17 14:07:26,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:07:26" (1/1) ... [2020-07-17 14:07:26,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:07:26" (1/1) ... [2020-07-17 14:07:26,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:07:26" (1/1) ... [2020-07-17 14:07:26,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:07:26" (1/1) ... [2020-07-17 14:07:26,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:07:26" (1/1) ... [2020-07-17 14:07:26,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:07:26" (1/1) ... [2020-07-17 14:07:26,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 14:07:26,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 14:07:26,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 14:07:26,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 14:07:26,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:07:26" (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 14:07:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 14:07:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 14:07:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-17 14:07:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 14:07:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-17 14:07:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 14:07:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 14:07:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 14:07:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 14:07:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 14:07:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 14:07:28,591 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 14:07:28,592 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 14:07:28,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:07:28 BoogieIcfgContainer [2020-07-17 14:07:28,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 14:07:28,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 14:07:28,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 14:07:28,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 14:07:28,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 02:07:25" (1/3) ... [2020-07-17 14:07:28,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d288226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:07:28, skipping insertion in model container [2020-07-17 14:07:28,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:07:26" (2/3) ... [2020-07-17 14:07:28,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d288226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:07:28, skipping insertion in model container [2020-07-17 14:07:28,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:07:28" (3/3) ... [2020-07-17 14:07:28,632 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label26.c [2020-07-17 14:07:28,645 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 14:07:28,661 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 14:07:28,678 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 14:07:28,710 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 14:07:28,710 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 14:07:28,710 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 14:07:28,710 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 14:07:28,711 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 14:07:28,711 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 14:07:28,711 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 14:07:28,711 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 14:07:28,750 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-07-17 14:07:28,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-07-17 14:07:28,799 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:07:28,801 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:07:28,801 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:07:28,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:07:28,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1114585457, now seen corresponding path program 1 times [2020-07-17 14:07:28,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:07:28,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033171774] [2020-07-17 14:07:28,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:07:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:07:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:07:29,535 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 14:07:29,539 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:07:29,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033171774] [2020-07-17 14:07:29,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:07:29,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 14:07:29,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485880190] [2020-07-17 14:07:29,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 14:07:29,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:07:29,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 14:07:29,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 14:07:29,573 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 5 states. [2020-07-17 14:07:33,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:07:33,384 INFO L93 Difference]: Finished difference Result 1419 states and 2014 transitions. [2020-07-17 14:07:33,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 14:07:33,387 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-07-17 14:07:33,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:07:33,451 INFO L225 Difference]: With dead ends: 1419 [2020-07-17 14:07:33,452 INFO L226 Difference]: Without dead ends: 836 [2020-07-17 14:07:33,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 14:07:33,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-07-17 14:07:33,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 772. [2020-07-17 14:07:33,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2020-07-17 14:07:33,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 943 transitions. [2020-07-17 14:07:33,709 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 943 transitions. Word has length 162 [2020-07-17 14:07:33,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:07:33,711 INFO L479 AbstractCegarLoop]: Abstraction has 772 states and 943 transitions. [2020-07-17 14:07:33,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 14:07:33,711 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 943 transitions. [2020-07-17 14:07:33,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-17 14:07:33,718 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:07:33,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:07:33,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 14:07:33,720 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:07:33,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:07:33,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1612352790, now seen corresponding path program 1 times [2020-07-17 14:07:33,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:07:33,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477944896] [2020-07-17 14:07:33,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:07:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:07:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:07:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:07:34,231 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 14:07:34,233 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:07:34,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477944896] [2020-07-17 14:07:34,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:07:34,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 14:07:34,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879830903] [2020-07-17 14:07:34,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 14:07:34,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:07:34,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 14:07:34,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-17 14:07:34,240 INFO L87 Difference]: Start difference. First operand 772 states and 943 transitions. Second operand 8 states. [2020-07-17 14:07:34,425 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-07-17 14:07:39,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:07:39,054 INFO L93 Difference]: Finished difference Result 2505 states and 3249 transitions. [2020-07-17 14:07:39,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-17 14:07:39,054 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 179 [2020-07-17 14:07:39,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:07:39,072 INFO L225 Difference]: With dead ends: 2505 [2020-07-17 14:07:39,073 INFO L226 Difference]: Without dead ends: 1755 [2020-07-17 14:07:39,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-07-17 14:07:39,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2020-07-17 14:07:39,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1532. [2020-07-17 14:07:39,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1532 states. [2020-07-17 14:07:39,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1975 transitions. [2020-07-17 14:07:39,263 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1975 transitions. Word has length 179 [2020-07-17 14:07:39,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:07:39,264 INFO L479 AbstractCegarLoop]: Abstraction has 1532 states and 1975 transitions. [2020-07-17 14:07:39,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 14:07:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1975 transitions. [2020-07-17 14:07:39,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-17 14:07:39,272 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:07:39,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:07:39,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 14:07:39,273 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:07:39,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:07:39,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1752166565, now seen corresponding path program 1 times [2020-07-17 14:07:39,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:07:39,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747198434] [2020-07-17 14:07:39,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:07:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:07:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:07:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:07:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:07:39,538 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 14:07:40,490 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-07-17 14:07:40,714 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-17 14:07:40,977 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 14:07:41,332 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-07-17 14:07:41,731 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-07-17 14:07:42,031 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:07:42,302 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:07:42,602 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:07:43,160 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-07-17 14:07:43,501 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 14:07:43,851 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 14:07:44,257 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:07:44,989 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-07-17 14:07:45,721 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 14:07:46,538 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:07:47,359 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-07-17 14:07:47,853 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-07-17 14:07:48,734 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-07-17 14:07:49,276 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-17 14:07:49,840 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-17 14:07:50,838 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-07-17 14:07:51,764 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2020-07-17 14:07:52,676 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 93 [2020-07-17 14:07:53,629 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 94 [2020-07-17 14:07:54,250 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 14:07:55,275 WARN L193 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 96 [2020-07-17 14:07:56,338 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-07-17 14:07:57,469 WARN L193 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-07-17 14:07:58,581 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-07-17 14:07:59,278 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-07-17 14:08:00,022 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-07-17 14:08:01,259 WARN L193 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 14:08:02,057 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-07-17 14:08:03,379 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 14:08:04,685 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 14:08:06,028 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 14:08:06,864 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-17 14:08:07,721 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 14:08:09,182 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2020-07-17 14:08:11,044 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-07-17 14:08:12,434 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 14:08:13,833 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2020-07-17 14:08:14,728 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 14:08:15,668 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 14:08:17,221 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:08:18,772 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-07-17 14:08:20,228 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 14:08:22,252 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 106 DAG size of output: 105 [2020-07-17 14:08:23,750 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 14:08:25,238 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 111 DAG size of output: 106 [2020-07-17 14:08:26,790 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:08:28,394 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-07-17 14:08:29,904 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 14:08:31,936 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 14:08:33,346 WARN L193 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-07-17 14:08:34,689 WARN L193 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-07-17 14:08:36,029 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2020-07-17 14:08:37,526 WARN L193 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 14:08:38,950 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:08:40,926 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:08:42,390 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 14:08:43,812 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:08:45,181 WARN L193 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:08:46,570 WARN L193 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-07-17 14:08:47,981 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 14:08:49,708 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2020-07-17 14:08:51,026 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-07-17 14:08:52,316 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-07-17 14:08:53,994 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2020-07-17 14:08:55,187 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-07-17 14:08:56,245 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-07-17 14:08:57,073 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-07-17 14:08:57,833 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2020-07-17 14:08:58,638 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2020-07-17 14:08:59,547 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-07-17 14:09:00,177 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-17 14:09:00,995 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2020-07-17 14:09:01,680 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-07-17 14:09:02,380 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:09:03,285 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-07-17 14:09:04,188 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-07-17 14:09:05,107 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-07-17 14:09:06,096 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-07-17 14:09:07,058 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2020-07-17 14:09:07,852 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:09:08,636 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:09:09,483 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:09:10,336 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 14:09:11,491 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-07-17 14:09:12,355 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 14:09:13,573 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 81 [2020-07-17 14:09:14,777 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-07-17 14:09:15,993 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2020-07-17 14:09:17,258 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2020-07-17 14:09:18,540 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-07-17 14:09:19,861 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:09:21,226 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:09:22,266 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:09:23,729 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 14:09:24,823 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 14:09:26,355 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:09:27,871 WARN L193 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-07-17 14:09:29,395 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 14:09:30,971 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:09:32,551 WARN L193 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-07-17 14:09:34,105 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 14:09:35,627 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-07-17 14:09:37,197 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-07-17 14:09:38,743 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-07-17 14:09:40,229 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-07-17 14:09:41,406 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 14:09:42,938 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:09:44,466 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:09:45,682 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:09:47,198 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-07-17 14:09:48,755 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-07-17 14:09:50,265 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-07-17 14:09:51,441 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-17 14:09:53,025 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2020-07-17 14:09:54,627 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:09:56,280 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:09:57,934 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:09:59,513 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-07-17 14:10:01,053 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-07-17 14:10:02,687 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2020-07-17 14:10:04,265 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-07-17 14:10:05,739 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-07-17 14:10:06,616 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 40 [2020-07-17 14:10:06,617 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:10:06,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747198434] [2020-07-17 14:10:06,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:10:06,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [146] imperfect sequences [] total 146 [2020-07-17 14:10:06,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945829095] [2020-07-17 14:10:06,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 147 states [2020-07-17 14:10:06,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:10:06,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2020-07-17 14:10:06,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9355, Invalid=12107, Unknown=0, NotChecked=0, Total=21462 [2020-07-17 14:10:06,634 INFO L87 Difference]: Start difference. First operand 1532 states and 1975 transitions. Second operand 147 states. [2020-07-17 14:10:10,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:10:10,451 INFO L93 Difference]: Finished difference Result 4118 states and 5621 transitions. [2020-07-17 14:10:10,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 14:10:10,453 INFO L78 Accepts]: Start accepts. Automaton has 147 states. Word has length 213 [2020-07-17 14:10:10,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:10:10,511 INFO L225 Difference]: With dead ends: 4118 [2020-07-17 14:10:10,511 INFO L226 Difference]: Without dead ends: 2608 [2020-07-17 14:10:10,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1663 ImplicationChecksByTransitivity, 147.2s TimeCoverageRelationStatistics Valid=9382, Invalid=13570, Unknown=0, NotChecked=0, Total=22952 [2020-07-17 14:10:10,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2020-07-17 14:10:10,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2323. [2020-07-17 14:10:10,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2323 states. [2020-07-17 14:10:10,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2323 states to 2323 states and 3171 transitions. [2020-07-17 14:10:10,964 INFO L78 Accepts]: Start accepts. Automaton has 2323 states and 3171 transitions. Word has length 213 [2020-07-17 14:10:10,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:10:10,965 INFO L479 AbstractCegarLoop]: Abstraction has 2323 states and 3171 transitions. [2020-07-17 14:10:10,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 147 states. [2020-07-17 14:10:10,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2323 states and 3171 transitions. [2020-07-17 14:10:10,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-07-17 14:10:10,990 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:10:10,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:10:10,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 14:10:10,992 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:10:10,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:10:10,993 INFO L82 PathProgramCache]: Analyzing trace with hash 56980046, now seen corresponding path program 1 times [2020-07-17 14:10:10,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:10:10,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741674679] [2020-07-17 14:10:10,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:10:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:10:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:10:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:10:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:10:11,518 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 14:10:11,519 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:10:11,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741674679] [2020-07-17 14:10:11,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:10:11,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 14:10:11,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756310104] [2020-07-17 14:10:11,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 14:10:11,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:10:11,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 14:10:11,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 14:10:11,522 INFO L87 Difference]: Start difference. First operand 2323 states and 3171 transitions. Second operand 7 states. [2020-07-17 14:10:16,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:10:16,164 INFO L93 Difference]: Finished difference Result 6669 states and 9372 transitions. [2020-07-17 14:10:16,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 14:10:16,166 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 218 [2020-07-17 14:10:16,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:10:16,201 INFO L225 Difference]: With dead ends: 6669 [2020-07-17 14:10:16,201 INFO L226 Difference]: Without dead ends: 4368 [2020-07-17 14:10:16,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-07-17 14:10:16,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4368 states. [2020-07-17 14:10:16,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4368 to 3567. [2020-07-17 14:10:16,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3567 states. [2020-07-17 14:10:16,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 4554 transitions. [2020-07-17 14:10:16,794 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 4554 transitions. Word has length 218 [2020-07-17 14:10:16,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:10:16,795 INFO L479 AbstractCegarLoop]: Abstraction has 3567 states and 4554 transitions. [2020-07-17 14:10:16,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 14:10:16,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 4554 transitions. [2020-07-17 14:10:16,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-07-17 14:10:16,816 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:10:16,816 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, 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, 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] [2020-07-17 14:10:16,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 14:10:16,816 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:10:16,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:10:16,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1401964617, now seen corresponding path program 1 times [2020-07-17 14:10:16,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:10:16,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722392672] [2020-07-17 14:10:16,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:10:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:10:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:10:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:10:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:10:17,247 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 14:10:18,113 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-07-17 14:10:18,356 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-07-17 14:10:18,613 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-17 14:10:18,838 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 14:10:19,107 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-07-17 14:10:19,561 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-07-17 14:10:20,050 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-07-17 14:10:20,365 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:10:20,745 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:10:21,119 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 14:10:21,836 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-07-17 14:10:22,250 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 14:10:22,686 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:10:23,157 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 14:10:24,064 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-07-17 14:10:24,963 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:10:25,902 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-07-17 14:10:26,960 WARN L193 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-07-17 14:10:27,618 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-17 14:10:28,696 WARN L193 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-07-17 14:10:29,322 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-07-17 14:10:29,975 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 14:10:31,204 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-07-17 14:10:32,352 WARN L193 SmtUtils]: Spent 943.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2020-07-17 14:10:33,541 WARN L193 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 94 [2020-07-17 14:10:34,766 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 95 DAG size of output: 95 [2020-07-17 14:10:35,458 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-07-17 14:10:36,615 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2020-07-17 14:10:37,905 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-07-17 14:10:39,190 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-07-17 14:10:40,530 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 100 DAG size of output: 99 [2020-07-17 14:10:41,361 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-07-17 14:10:42,209 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-07-17 14:10:43,657 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 14:10:44,532 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-07-17 14:10:46,045 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:10:47,471 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:10:48,915 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 14:10:49,794 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 14:10:50,713 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 14:10:52,325 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2020-07-17 14:10:54,344 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-07-17 14:10:55,824 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 14:10:57,313 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 14:10:58,282 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 14:10:59,281 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-07-17 14:11:00,907 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-07-17 14:11:02,597 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2020-07-17 14:11:04,217 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-07-17 14:11:06,395 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 14:11:07,998 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:11:09,617 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2020-07-17 14:11:11,287 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-07-17 14:11:12,995 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 109 DAG size of output: 109 [2020-07-17 14:11:14,609 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-07-17 14:11:16,786 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-07-17 14:11:18,316 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-07-17 14:11:19,817 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-07-17 14:11:21,300 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-07-17 14:11:22,852 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 14:11:24,412 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-07-17 14:11:26,439 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 14:11:27,993 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 14:11:29,575 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-07-17 14:11:31,119 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 14:11:32,673 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:11:34,250 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 14:11:36,132 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2020-07-17 14:11:37,593 WARN L193 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-07-17 14:11:39,084 WARN L193 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 99 [2020-07-17 14:11:40,943 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2020-07-17 14:11:42,257 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-07-17 14:11:43,477 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2020-07-17 14:11:44,412 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2020-07-17 14:11:45,247 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2020-07-17 14:11:46,137 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2020-07-17 14:11:47,130 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-07-17 14:11:47,845 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 14:11:48,756 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-07-17 14:11:49,496 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:11:50,268 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 14:11:51,265 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-07-17 14:11:52,245 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-07-17 14:11:53,255 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-07-17 14:11:54,311 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 76 [2020-07-17 14:11:55,380 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-07-17 14:11:56,243 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:11:57,124 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:11:58,046 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 14:11:58,989 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 14:12:00,260 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2020-07-17 14:12:01,219 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 14:12:02,556 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2020-07-17 14:12:03,933 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-07-17 14:12:05,318 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2020-07-17 14:12:06,743 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:12:08,201 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:12:09,686 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-07-17 14:12:11,174 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:12:12,284 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 14:12:13,867 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 14:12:15,041 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 14:12:16,712 WARN L193 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-07-17 14:12:18,337 WARN L193 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-07-17 14:12:20,007 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:12:21,707 WARN L193 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-07-17 14:12:23,402 WARN L193 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-07-17 14:12:25,083 WARN L193 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-07-17 14:12:26,757 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-07-17 14:12:28,431 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 14:12:30,072 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-07-17 14:12:31,673 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-07-17 14:12:32,909 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:12:34,529 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:12:36,154 WARN L193 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:12:37,443 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 14:12:39,075 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-07-17 14:12:40,731 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:12:42,340 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2020-07-17 14:12:43,620 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 14:12:45,298 WARN L193 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:12:47,027 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-07-17 14:12:48,757 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:12:50,528 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:12:52,277 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-07-17 14:12:54,024 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-07-17 14:12:55,763 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:12:57,519 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:12:59,240 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2020-07-17 14:13:00,144 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 41 [2020-07-17 14:13:00,145 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:13:00,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722392672] [2020-07-17 14:13:00,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:13:00,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [146] imperfect sequences [] total 146 [2020-07-17 14:13:00,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325477877] [2020-07-17 14:13:00,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 147 states [2020-07-17 14:13:00,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:13:00,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2020-07-17 14:13:00,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9355, Invalid=12107, Unknown=0, NotChecked=0, Total=21462 [2020-07-17 14:13:00,157 INFO L87 Difference]: Start difference. First operand 3567 states and 4554 transitions. Second operand 147 states. [2020-07-17 14:13:04,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:13:04,795 INFO L93 Difference]: Finished difference Result 6451 states and 8607 transitions. [2020-07-17 14:13:04,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 14:13:04,796 INFO L78 Accepts]: Start accepts. Automaton has 147 states. Word has length 260 [2020-07-17 14:13:04,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:13:04,816 INFO L225 Difference]: With dead ends: 6451 [2020-07-17 14:13:04,817 INFO L226 Difference]: Without dead ends: 2906 [2020-07-17 14:13:04,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1663 ImplicationChecksByTransitivity, 163.0s TimeCoverageRelationStatistics Valid=9382, Invalid=13570, Unknown=0, NotChecked=0, Total=22952 [2020-07-17 14:13:04,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2020-07-17 14:13:05,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2644. [2020-07-17 14:13:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2644 states. [2020-07-17 14:13:05,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3180 transitions. [2020-07-17 14:13:05,147 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3180 transitions. Word has length 260 [2020-07-17 14:13:05,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:13:05,148 INFO L479 AbstractCegarLoop]: Abstraction has 2644 states and 3180 transitions. [2020-07-17 14:13:05,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 147 states. [2020-07-17 14:13:05,148 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3180 transitions. [2020-07-17 14:13:05,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-07-17 14:13:05,160 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:13:05,161 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2020-07-17 14:13:05,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 14:13:05,161 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:13:05,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:13:05,162 INFO L82 PathProgramCache]: Analyzing trace with hash -336355995, now seen corresponding path program 1 times [2020-07-17 14:13:05,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:13:05,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628798013] [2020-07-17 14:13:05,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:13:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:13:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:13:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:13:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:13:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:13:05,562 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 14:13:06,316 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-07-17 14:13:06,520 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-07-17 14:13:06,746 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-17 14:13:06,981 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 14:13:07,216 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-07-17 14:13:07,701 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-07-17 14:13:08,238 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-07-17 14:13:08,563 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:13:08,917 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:13:09,316 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 14:13:10,065 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-07-17 14:13:10,505 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 14:13:10,983 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:13:11,482 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 14:13:12,424 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-07-17 14:13:13,436 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:13:14,490 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-07-17 14:13:15,635 WARN L193 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-07-17 14:13:16,298 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-17 14:13:17,445 WARN L193 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-07-17 14:13:18,132 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-07-17 14:13:18,845 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 14:13:20,165 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-07-17 14:13:21,354 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2020-07-17 14:13:22,581 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 94 DAG size of output: 94 [2020-07-17 14:13:23,847 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 95 DAG size of output: 95 [2020-07-17 14:13:24,622 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-07-17 14:13:25,997 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2020-07-17 14:13:27,424 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-07-17 14:13:28,883 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-07-17 14:13:30,364 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 100 DAG size of output: 99 [2020-07-17 14:13:31,255 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-07-17 14:13:32,191 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-07-17 14:13:33,851 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 14:13:34,868 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-07-17 14:13:36,601 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:13:38,340 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:13:40,101 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 14:13:41,203 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 14:13:42,309 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 14:13:44,172 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2020-07-17 14:13:46,691 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-07-17 14:13:48,520 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 14:13:50,411 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 14:13:51,606 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 14:13:52,834 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-07-17 14:13:54,885 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-07-17 14:13:57,045 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2020-07-17 14:13:59,093 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-07-17 14:14:01,941 WARN L193 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 14:14:04,024 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:14:06,134 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2020-07-17 14:14:08,261 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-07-17 14:14:10,458 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 109 DAG size of output: 109 [2020-07-17 14:14:12,535 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-07-17 14:14:15,348 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-07-17 14:14:17,275 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-07-17 14:14:19,208 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-07-17 14:14:21,113 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-07-17 14:14:23,142 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 14:14:25,143 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-07-17 14:14:27,791 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 14:14:29,841 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 14:14:31,921 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-07-17 14:14:33,935 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 14:14:35,973 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:14:38,037 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 14:14:40,555 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2020-07-17 14:14:42,502 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-07-17 14:14:44,433 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 100 DAG size of output: 99 [2020-07-17 14:14:46,934 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2020-07-17 14:14:48,698 WARN L193 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-07-17 14:14:50,270 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2020-07-17 14:14:51,529 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2020-07-17 14:14:52,654 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2020-07-17 14:14:53,848 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2020-07-17 14:14:55,224 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-07-17 14:14:56,176 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 14:14:57,431 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-07-17 14:14:58,445 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:14:59,497 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 14:15:00,862 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-07-17 14:15:02,244 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-07-17 14:15:03,678 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-07-17 14:15:05,224 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 76 [2020-07-17 14:15:06,756 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-07-17 14:15:07,932 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:15:09,129 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:15:10,418 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 14:15:11,713 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 14:15:13,464 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2020-07-17 14:15:14,833 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 14:15:16,738 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2020-07-17 14:15:18,628 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-07-17 14:15:20,537 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2020-07-17 14:15:22,515 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:15:24,526 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:15:26,541 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-07-17 14:15:28,597 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:15:30,159 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 14:15:32,355 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 14:15:33,977 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 14:15:36,280 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-07-17 14:15:38,596 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-07-17 14:15:40,971 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:15:43,379 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-07-17 14:15:45,751 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-07-17 14:15:48,139 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-07-17 14:15:50,523 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-07-17 14:15:52,887 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 14:15:55,210 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-07-17 14:15:57,425 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-07-17 14:15:59,243 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:16:01,641 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:16:04,021 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:16:05,868 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 14:16:08,336 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-07-17 14:16:10,784 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:16:13,199 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2020-07-17 14:16:15,100 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 14:16:17,627 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:16:20,187 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-07-17 14:16:22,754 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:16:25,438 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:16:28,061 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-07-17 14:16:30,670 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-07-17 14:16:33,308 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:16:35,900 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:16:38,424 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2020-07-17 14:16:39,533 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 41 [2020-07-17 14:16:39,534 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:16:39,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628798013] [2020-07-17 14:16:39,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:16:39,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [146] imperfect sequences [] total 146 [2020-07-17 14:16:39,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862710775] [2020-07-17 14:16:39,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 147 states [2020-07-17 14:16:39,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:16:39,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2020-07-17 14:16:39,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9354, Invalid=12108, Unknown=0, NotChecked=0, Total=21462 [2020-07-17 14:16:39,541 INFO L87 Difference]: Start difference. First operand 2644 states and 3180 transitions. Second operand 147 states. [2020-07-17 14:16:40,489 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:16:40,716 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-07-17 14:16:41,155 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-07-17 14:16:41,835 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-07-17 14:16:42,002 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 27 [2020-07-17 14:16:42,429 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2020-07-17 14:16:42,997 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-07-17 14:16:43,693 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2020-07-17 14:16:44,456 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 109 [2020-07-17 14:16:45,518 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2020-07-17 14:16:46,365 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-07-17 14:16:47,761 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-07-17 14:16:49,270 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 122 DAG size of output: 113 [2020-07-17 14:16:50,886 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2020-07-17 14:16:52,141 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 124 DAG size of output: 118 [2020-07-17 14:16:53,398 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 128 DAG size of output: 122 [2020-07-17 14:16:54,776 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 129 DAG size of output: 123 [2020-07-17 14:16:56,279 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 131 DAG size of output: 124 [2020-07-17 14:16:57,685 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 132 DAG size of output: 125 [2020-07-17 14:16:59,294 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 133 DAG size of output: 126 [2020-07-17 14:17:00,907 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 134 DAG size of output: 127 [2020-07-17 14:17:02,770 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 135 DAG size of output: 128 [2020-07-17 14:17:03,434 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2020-07-17 14:17:05,340 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 136 DAG size of output: 128 [2020-07-17 14:17:06,124 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2020-07-17 14:17:06,436 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-07-17 14:17:08,530 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 139 DAG size of output: 131 [2020-07-17 14:17:08,922 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-07-17 14:17:09,734 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2020-07-17 14:17:11,815 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 140 DAG size of output: 132 [2020-07-17 14:17:12,528 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2020-07-17 14:17:14,385 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 138 DAG size of output: 129 [2020-07-17 14:17:16,453 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 139 DAG size of output: 130 [2020-07-17 14:17:18,531 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 140 DAG size of output: 131 [2020-07-17 14:17:20,876 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 142 DAG size of output: 132 [2020-07-17 14:17:21,216 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2020-07-17 14:17:23,396 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 143 DAG size of output: 133 [2020-07-17 14:17:25,651 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 143 DAG size of output: 133 [2020-07-17 14:17:28,020 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 144 DAG size of output: 134 [2020-07-17 14:17:30,492 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2020-07-17 14:17:31,354 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-07-17 14:17:33,871 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 147 DAG size of output: 136 [2020-07-17 14:17:36,437 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 147 DAG size of output: 136 [2020-07-17 14:17:38,996 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 147 DAG size of output: 136 [2020-07-17 14:17:41,667 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 149 DAG size of output: 137 [2020-07-17 14:17:44,462 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 150 DAG size of output: 138 [2020-07-17 14:17:47,132 WARN L193 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 149 DAG size of output: 137 [2020-07-17 14:17:49,654 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2020-07-17 14:17:52,417 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 148 DAG size of output: 136 [2020-07-17 14:17:55,078 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 149 DAG size of output: 137 [2020-07-17 14:17:57,885 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 151 DAG size of output: 138 [2020-07-17 14:18:01,068 WARN L193 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 153 DAG size of output: 139 [2020-07-17 14:18:03,820 WARN L193 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 150 DAG size of output: 136 [2020-07-17 14:18:06,561 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 150 DAG size of output: 136 [2020-07-17 14:18:08,088 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2020-07-17 14:18:10,918 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 151 DAG size of output: 137 [2020-07-17 14:18:13,736 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 151 DAG size of output: 137 [2020-07-17 14:18:16,627 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 152 DAG size of output: 138 [2020-07-17 14:18:19,660 WARN L193 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2020-07-17 14:18:22,730 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2020-07-17 14:18:25,685 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 145 DAG size of output: 137 [2020-07-17 14:18:28,751 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 145 DAG size of output: 137 [2020-07-17 14:18:31,761 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 148 DAG size of output: 140 [2020-07-17 14:18:34,785 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 148 DAG size of output: 140 [2020-07-17 14:18:37,874 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2020-07-17 14:18:40,960 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2020-07-17 14:18:44,874 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 147 DAG size of output: 136 [2020-07-17 14:18:48,894 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2020-07-17 14:18:49,701 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-07-17 14:18:53,015 WARN L193 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 142 DAG size of output: 130 [2020-07-17 14:18:56,449 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 143 DAG size of output: 131 [2020-07-17 14:18:59,790 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 143 DAG size of output: 130 [2020-07-17 14:19:00,510 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2020-07-17 14:19:03,663 WARN L193 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2020-07-17 14:19:06,356 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 131 DAG size of output: 121 [2020-07-17 14:19:07,705 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 102 [2020-07-17 14:19:08,755 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 99 [2020-07-17 14:19:10,200 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 106 [2020-07-17 14:19:11,328 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 107 [2020-07-17 14:19:12,509 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 108 [2020-07-17 14:19:13,747 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 109 [2020-07-17 14:19:15,016 WARN L193 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 109 [2020-07-17 14:19:16,360 WARN L193 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 110 [2020-07-17 14:19:17,745 WARN L193 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 110 [2020-07-17 14:19:19,239 WARN L193 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 111 [2020-07-17 14:19:21,135 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2020-07-17 14:19:23,057 WARN L193 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 112 [2020-07-17 14:19:24,549 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2020-07-17 14:19:26,715 WARN L193 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2020-07-17 14:19:28,504 WARN L193 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 112 [2020-07-17 14:19:29,876 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2020-07-17 14:19:31,125 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 109 [2020-07-17 14:19:32,290 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-07-17 14:19:33,496 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 110 [2020-07-17 14:19:34,765 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 112 [2020-07-17 14:19:36,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:19:36,868 INFO L93 Difference]: Finished difference Result 4571 states and 5535 transitions. [2020-07-17 14:19:36,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2020-07-17 14:19:36,871 INFO L78 Accepts]: Start accepts. Automaton has 147 states. Word has length 299 [2020-07-17 14:19:36,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:19:36,879 INFO L225 Difference]: With dead ends: 4571 [2020-07-17 14:19:36,879 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 14:19:36,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 259 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14456 ImplicationChecksByTransitivity, 378.5s TimeCoverageRelationStatistics Valid=19319, Invalid=48541, Unknown=0, NotChecked=0, Total=67860 [2020-07-17 14:19:36,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 14:19:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 14:19:36,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 14:19:36,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 14:19:36,899 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 299 [2020-07-17 14:19:36,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:19:36,900 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 14:19:36,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 147 states. [2020-07-17 14:19:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 14:19:36,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 14:19:36,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 14:19:36,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 14:20:17,037 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 260 [2020-07-17 14:20:17,435 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 250 [2020-07-17 14:20:17,619 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 272 [2020-07-17 14:20:17,886 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 260 [2020-07-17 14:20:18,266 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 250 [2020-07-17 14:20:18,417 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 272 [2020-07-17 14:20:33,018 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 63 [2020-07-17 14:20:35,279 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 222 DAG size of output: 111 [2020-07-17 14:20:37,316 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 213 DAG size of output: 106 [2020-07-17 14:20:39,702 WARN L193 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 266 DAG size of output: 131 [2020-07-17 14:20:42,348 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 225 DAG size of output: 125 [2020-07-17 14:20:42,836 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 70 [2020-07-17 14:20:43,312 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 70 [2020-07-17 14:20:43,769 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 70 [2020-07-17 14:20:45,328 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 223 DAG size of output: 109 [2020-07-17 14:20:45,751 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 63 [2020-07-17 14:20:47,773 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 221 DAG size of output: 108