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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 22:12:10,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 22:12:10,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 22:12:10,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-07 22:12:10,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 22:12:10,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 22:12:10,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 22:12:10,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-07 22:12:10,903 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 22:12:10,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 22:12:10,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 22:12:10,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 22:12:10,905 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 22:12:10,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 22:12:10,905 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 22:12:10,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 22:12:10,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 22:12:10,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 22:12:10,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 22:12:10,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 22:12:10,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 22:12:10,907 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 22:12:10,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 22:12:10,907 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 22:12:10,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 22:12:10,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 22:12:10,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 22:12:10,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 22:12:10,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 22:12:10,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 22:12:10,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 22:12:10,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 22:12:10,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 22:12:10,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 22:12:10,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 22:12:10,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 22:12:10,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 22:12:10,941 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 22:12:10,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 22:12:10,957 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 22:12:10,958 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 22:12:10,958 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 22:12:10,959 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label57.c [2019-09-07 22:12:11,021 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abbc40696/218b696116ef4d5b946f5619a814515a/FLAG85427575b [2019-09-07 22:12:11,643 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 22:12:11,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label57.c [2019-09-07 22:12:11,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abbc40696/218b696116ef4d5b946f5619a814515a/FLAG85427575b [2019-09-07 22:12:11,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abbc40696/218b696116ef4d5b946f5619a814515a [2019-09-07 22:12:11,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 22:12:11,846 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 22:12:11,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 22:12:11,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 22:12:11,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 22:12:11,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 10:12:11" (1/1) ... [2019-09-07 22:12:11,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74acbc84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:12:11, skipping insertion in model container [2019-09-07 22:12:11,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 10:12:11" (1/1) ... [2019-09-07 22:12:11,864 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 22:12:11,969 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 22:12:13,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 22:12:13,086 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 22:12:13,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 22:12:13,635 INFO L192 MainTranslator]: Completed translation [2019-09-07 22:12:13,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:12:13 WrapperNode [2019-09-07 22:12:13,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 22:12:13,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 22:12:13,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 22:12:13,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 22:12:13,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:12:13" (1/1) ... [2019-09-07 22:12:13,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:12:13" (1/1) ... [2019-09-07 22:12:13,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:12:13" (1/1) ... [2019-09-07 22:12:13,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:12:13" (1/1) ... [2019-09-07 22:12:13,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:12:13" (1/1) ... [2019-09-07 22:12:13,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:12:13" (1/1) ... [2019-09-07 22:12:13,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:12:13" (1/1) ... [2019-09-07 22:12:13,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 22:12:13,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 22:12:13,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 22:12:13,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 22:12:13,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:12:13" (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 [2019-09-07 22:12:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 22:12:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 22:12:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 22:12:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 22:12:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 22:12:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 22:12:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 22:12:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 22:12:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 22:12:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 22:12:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 22:12:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 22:12:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 22:12:18,574 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 22:12:18,577 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 22:12:18,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 10:12:18 BoogieIcfgContainer [2019-09-07 22:12:18,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 22:12:18,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 22:12:18,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 22:12:18,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 22:12:18,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 10:12:11" (1/3) ... [2019-09-07 22:12:18,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6107b732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 10:12:18, skipping insertion in model container [2019-09-07 22:12:18,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:12:13" (2/3) ... [2019-09-07 22:12:18,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6107b732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 10:12:18, skipping insertion in model container [2019-09-07 22:12:18,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 10:12:18" (3/3) ... [2019-09-07 22:12:18,595 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem17_label57.c [2019-09-07 22:12:18,610 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 22:12:18,623 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 22:12:18,642 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 22:12:18,694 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 22:12:18,695 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 22:12:18,695 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 22:12:18,695 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 22:12:18,695 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 22:12:18,695 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 22:12:18,695 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 22:12:18,695 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 22:12:18,696 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 22:12:18,726 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states. [2019-09-07 22:12:18,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-07 22:12:18,733 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:12:18,735 INFO L399 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] [2019-09-07 22:12:18,737 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:12:18,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:12:18,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1371385577, now seen corresponding path program 1 times [2019-09-07 22:12:18,746 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:12:18,746 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:12:18,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:12:18,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:12:18,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:12:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:12:19,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:12:19,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 22:12:19,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-07 22:12:19,013 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-07 22:12:19,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-07 22:12:19,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 22:12:19,032 INFO L87 Difference]: Start difference. First operand 603 states. Second operand 4 states. [2019-09-07 22:12:25,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:12:25,311 INFO L93 Difference]: Finished difference Result 2162 states and 4009 transitions. [2019-09-07 22:12:25,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-07 22:12:25,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2019-09-07 22:12:25,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:12:25,350 INFO L225 Difference]: With dead ends: 2162 [2019-09-07 22:12:25,350 INFO L226 Difference]: Without dead ends: 1478 [2019-09-07 22:12:25,365 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 22:12:25,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2019-09-07 22:12:25,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1006. [2019-09-07 22:12:25,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1006 states. [2019-09-07 22:12:25,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1697 transitions. [2019-09-07 22:12:25,517 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1697 transitions. Word has length 23 [2019-09-07 22:12:25,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:12:25,518 INFO L475 AbstractCegarLoop]: Abstraction has 1006 states and 1697 transitions. [2019-09-07 22:12:25,518 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-07 22:12:25,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1697 transitions. [2019-09-07 22:12:25,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-07 22:12:25,528 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:12:25,529 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-07 22:12:25,530 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:12:25,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:12:25,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1771730457, now seen corresponding path program 1 times [2019-09-07 22:12:25,532 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:12:25,532 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:12:25,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:12:25,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:12:25,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:12:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:12:25,833 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:12:25,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 22:12:25,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 22:12:25,835 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 22:12:25,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 22:12:25,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 22:12:25,836 INFO L87 Difference]: Start difference. First operand 1006 states and 1697 transitions. Second operand 6 states. [2019-09-07 22:12:30,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:12:30,501 INFO L93 Difference]: Finished difference Result 2931 states and 5018 transitions. [2019-09-07 22:12:30,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 22:12:30,501 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2019-09-07 22:12:30,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:12:30,518 INFO L225 Difference]: With dead ends: 2931 [2019-09-07 22:12:30,519 INFO L226 Difference]: Without dead ends: 1931 [2019-09-07 22:12:30,523 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-07 22:12:30,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2019-09-07 22:12:30,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1911. [2019-09-07 22:12:30,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1911 states. [2019-09-07 22:12:30,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2935 transitions. [2019-09-07 22:12:30,601 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2935 transitions. Word has length 98 [2019-09-07 22:12:30,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:12:30,602 INFO L475 AbstractCegarLoop]: Abstraction has 1911 states and 2935 transitions. [2019-09-07 22:12:30,602 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 22:12:30,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2935 transitions. [2019-09-07 22:12:30,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-07 22:12:30,612 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:12:30,612 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-07 22:12:30,612 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:12:30,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:12:30,613 INFO L82 PathProgramCache]: Analyzing trace with hash 141461871, now seen corresponding path program 1 times [2019-09-07 22:12:30,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:12:30,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:12:30,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:12:30,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:12:30,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:12:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:12:30,748 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:12:30,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 22:12:30,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 22:12:30,750 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 22:12:30,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 22:12:30,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 22:12:30,750 INFO L87 Difference]: Start difference. First operand 1911 states and 2935 transitions. Second operand 6 states. [2019-09-07 22:12:34,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:12:34,676 INFO L93 Difference]: Finished difference Result 4746 states and 7234 transitions. [2019-09-07 22:12:34,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 22:12:34,677 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2019-09-07 22:12:34,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:12:34,704 INFO L225 Difference]: With dead ends: 4746 [2019-09-07 22:12:34,704 INFO L226 Difference]: Without dead ends: 2841 [2019-09-07 22:12:34,710 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-07 22:12:34,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2019-09-07 22:12:34,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 2819. [2019-09-07 22:12:34,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2819 states. [2019-09-07 22:12:34,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3606 transitions. [2019-09-07 22:12:34,813 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3606 transitions. Word has length 102 [2019-09-07 22:12:34,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:12:34,822 INFO L475 AbstractCegarLoop]: Abstraction has 2819 states and 3606 transitions. [2019-09-07 22:12:34,822 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 22:12:34,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3606 transitions. [2019-09-07 22:12:34,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-09-07 22:12:34,826 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:12:34,829 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-07 22:12:34,829 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:12:34,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:12:34,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1871790130, now seen corresponding path program 1 times [2019-09-07 22:12:34,830 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:12:34,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:12:34,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:12:34,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:12:34,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:12:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:12:34,994 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:12:34,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 22:12:34,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-07 22:12:34,996 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-07 22:12:34,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-07 22:12:34,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 22:12:34,997 INFO L87 Difference]: Start difference. First operand 2819 states and 3606 transitions. Second operand 4 states. [2019-09-07 22:12:38,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:12:38,921 INFO L93 Difference]: Finished difference Result 5632 states and 7217 transitions. [2019-09-07 22:12:38,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-07 22:12:38,924 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2019-09-07 22:12:38,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:12:38,939 INFO L225 Difference]: With dead ends: 5632 [2019-09-07 22:12:38,940 INFO L226 Difference]: Without dead ends: 2819 [2019-09-07 22:12:38,946 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 22:12:38,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2819 states. [2019-09-07 22:12:39,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2819 to 2819. [2019-09-07 22:12:39,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2819 states. [2019-09-07 22:12:39,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3569 transitions. [2019-09-07 22:12:39,012 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3569 transitions. Word has length 132 [2019-09-07 22:12:39,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:12:39,013 INFO L475 AbstractCegarLoop]: Abstraction has 2819 states and 3569 transitions. [2019-09-07 22:12:39,013 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-07 22:12:39,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3569 transitions. [2019-09-07 22:12:39,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-09-07 22:12:39,016 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:12:39,016 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 22:12:39,016 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:12:39,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:12:39,017 INFO L82 PathProgramCache]: Analyzing trace with hash -2123365615, now seen corresponding path program 1 times [2019-09-07 22:12:39,017 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:12:39,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:12:39,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:12:39,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:12:39,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:12:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:12:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-09-07 22:12:39,232 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:12:39,232 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-07 22:12:39,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 22:12:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:12:39,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 22:12:39,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:12:39,411 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:12:39,412 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:12:39,592 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-07 22:12:39,600 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 22:12:39,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2019-09-07 22:12:39,602 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-07 22:12:39,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-07 22:12:39,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-09-07 22:12:39,607 INFO L87 Difference]: Start difference. First operand 2819 states and 3569 transitions. Second operand 10 states. [2019-09-07 22:12:51,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:12:51,884 INFO L93 Difference]: Finished difference Result 13977 states and 18551 transitions. [2019-09-07 22:12:51,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-07 22:12:51,885 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2019-09-07 22:12:51,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:12:51,943 INFO L225 Difference]: With dead ends: 13977 [2019-09-07 22:12:51,943 INFO L226 Difference]: Without dead ends: 11164 [2019-09-07 22:12:51,957 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 184 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2019-09-07 22:12:51,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11164 states. [2019-09-07 22:12:52,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11164 to 10617. [2019-09-07 22:12:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10617 states. [2019-09-07 22:12:52,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10617 states to 10617 states and 13063 transitions. [2019-09-07 22:12:52,316 INFO L78 Accepts]: Start accepts. Automaton has 10617 states and 13063 transitions. Word has length 185 [2019-09-07 22:12:52,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:12:52,317 INFO L475 AbstractCegarLoop]: Abstraction has 10617 states and 13063 transitions. [2019-09-07 22:12:52,317 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-07 22:12:52,317 INFO L276 IsEmpty]: Start isEmpty. Operand 10617 states and 13063 transitions. [2019-09-07 22:12:52,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-09-07 22:12:52,321 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:12:52,322 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 22:12:52,322 INFO L418 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:12:52,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:12:52,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1207875330, now seen corresponding path program 1 times [2019-09-07 22:12:52,323 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:12:52,323 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:12:52,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:12:52,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:12:52,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:12:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:12:52,534 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:12:52,535 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:12:52,535 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-07 22:12:52,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 22:12:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:12:52,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 11 conjunts are in the unsatisfiable core [2019-09-07 22:12:52,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:12:52,743 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 22:12:52,847 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-07 22:12:52,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 22:12:52,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2019-09-07 22:12:52,861 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 22:12:52,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 22:12:52,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-09-07 22:12:52,862 INFO L87 Difference]: Start difference. First operand 10617 states and 13063 transitions. Second operand 9 states. [2019-09-07 22:13:04,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:13:04,715 INFO L93 Difference]: Finished difference Result 29610 states and 37735 transitions. [2019-09-07 22:13:04,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-09-07 22:13:04,716 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 207 [2019-09-07 22:13:04,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:13:04,797 INFO L225 Difference]: With dead ends: 29610 [2019-09-07 22:13:04,798 INFO L226 Difference]: Without dead ends: 18999 [2019-09-07 22:13:04,832 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2019-09-07 22:13:04,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18999 states. [2019-09-07 22:13:05,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18999 to 17444. [2019-09-07 22:13:05,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17444 states. [2019-09-07 22:13:05,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17444 states to 17444 states and 21613 transitions. [2019-09-07 22:13:05,272 INFO L78 Accepts]: Start accepts. Automaton has 17444 states and 21613 transitions. Word has length 207 [2019-09-07 22:13:05,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:13:05,273 INFO L475 AbstractCegarLoop]: Abstraction has 17444 states and 21613 transitions. [2019-09-07 22:13:05,273 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 22:13:05,273 INFO L276 IsEmpty]: Start isEmpty. Operand 17444 states and 21613 transitions. [2019-09-07 22:13:05,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2019-09-07 22:13:05,294 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:13:05,295 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2019-09-07 22:13:05,295 INFO L418 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:13:05,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:13:05,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1313328330, now seen corresponding path program 1 times [2019-09-07 22:13:05,296 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:13:05,296 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:13:05,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:13:05,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:13:05,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:13:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:13:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 77 proven. 360 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-09-07 22:13:06,205 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:13:06,205 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-07 22:13:06,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 22:13:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:13:06,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 22:13:06,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:13:06,400 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 22:13:06,543 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 403 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2019-09-07 22:13:06,551 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 22:13:06,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5] total 15 [2019-09-07 22:13:06,553 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-07 22:13:06,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-07 22:13:06,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2019-09-07 22:13:06,554 INFO L87 Difference]: Start difference. First operand 17444 states and 21613 transitions. Second operand 15 states. [2019-09-07 22:13:17,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:13:17,679 INFO L93 Difference]: Finished difference Result 45904 states and 56877 transitions. [2019-09-07 22:13:17,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-09-07 22:13:17,680 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 359 [2019-09-07 22:13:17,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:13:17,786 INFO L225 Difference]: With dead ends: 45904 [2019-09-07 22:13:17,786 INFO L226 Difference]: Without dead ends: 27216 [2019-09-07 22:13:17,864 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 385 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=407, Invalid=1315, Unknown=0, NotChecked=0, Total=1722 [2019-09-07 22:13:17,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27216 states. [2019-09-07 22:13:18,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27216 to 22762. [2019-09-07 22:13:18,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22762 states. [2019-09-07 22:13:18,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22762 states to 22762 states and 26756 transitions. [2019-09-07 22:13:18,602 INFO L78 Accepts]: Start accepts. Automaton has 22762 states and 26756 transitions. Word has length 359 [2019-09-07 22:13:18,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:13:18,603 INFO L475 AbstractCegarLoop]: Abstraction has 22762 states and 26756 transitions. [2019-09-07 22:13:18,603 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-07 22:13:18,604 INFO L276 IsEmpty]: Start isEmpty. Operand 22762 states and 26756 transitions. [2019-09-07 22:13:18,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2019-09-07 22:13:18,615 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:13:18,616 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2019-09-07 22:13:18,616 INFO L418 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:13:18,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:13:18,617 INFO L82 PathProgramCache]: Analyzing trace with hash 464971368, now seen corresponding path program 1 times [2019-09-07 22:13:18,617 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:13:18,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:13:18,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:13:18,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:13:18,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:13:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:13:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 157 proven. 151 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2019-09-07 22:13:19,155 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:13:19,155 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 22:13:19,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:13:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:13:19,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 22:13:19,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:13:19,322 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,325 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,326 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,326 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,328 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,335 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,335 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,340 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,342 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,343 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,348 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,351 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,352 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,367 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,369 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,370 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,370 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,371 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,373 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,374 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,375 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,375 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,377 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,378 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,379 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,379 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,380 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,381 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,383 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,384 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,384 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,385 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,385 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,386 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,387 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,388 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,392 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,393 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,394 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,396 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,397 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,401 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,402 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,404 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,405 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,406 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,408 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,409 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,411 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,419 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,420 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,422 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,422 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,425 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,425 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,426 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,427 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,429 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,430 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,433 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,434 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,438 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,440 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,441 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,443 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,447 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,450 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,452 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,453 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,454 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,457 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,463 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,464 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,466 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,467 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,467 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,472 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,473 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,474 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,475 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,481 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,482 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,482 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,484 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,485 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,488 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,489 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,494 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,498 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,499 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,502 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,502 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,511 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,512 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,513 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,513 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,513 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,514 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,515 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,515 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,522 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,526 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,527 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,527 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,528 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,528 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,536 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,537 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,538 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,540 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,540 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,542 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,542 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,543 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,543 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,547 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,548 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,549 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,554 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,554 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,556 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,560 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,572 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,573 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,573 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,574 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,575 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,577 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,577 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,578 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,579 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,579 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,580 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,581 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,582 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,582 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,582 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,583 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,584 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,584 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,585 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,586 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,588 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,588 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,590 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:19,591 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:13:47,539 WARN L188 SmtUtils]: Spent 26.12 s on a formula simplification. DAG size of input: 576 DAG size of output: 33 [2019-09-07 22:13:47,748 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-09-07 22:13:47,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 22:13:47,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-09-07 22:13:47,755 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 22:13:47,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 22:13:47,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-09-07 22:13:47,756 INFO L87 Difference]: Start difference. First operand 22762 states and 26756 transitions. Second operand 6 states. [2019-09-07 22:14:47,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:14:47,069 INFO L93 Difference]: Finished difference Result 82366 states and 100413 transitions. [2019-09-07 22:14:47,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-07 22:14:47,070 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 370 [2019-09-07 22:14:47,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:14:47,236 INFO L225 Difference]: With dead ends: 82366 [2019-09-07 22:14:47,237 INFO L226 Difference]: Without dead ends: 51630 [2019-09-07 22:14:47,294 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 27.9s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-09-07 22:14:47,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51630 states. [2019-09-07 22:14:49,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51630 to 48005. [2019-09-07 22:14:49,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48005 states. [2019-09-07 22:14:49,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48005 states to 48005 states and 56700 transitions. [2019-09-07 22:14:49,097 INFO L78 Accepts]: Start accepts. Automaton has 48005 states and 56700 transitions. Word has length 370 [2019-09-07 22:14:49,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:14:49,098 INFO L475 AbstractCegarLoop]: Abstraction has 48005 states and 56700 transitions. [2019-09-07 22:14:49,098 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 22:14:49,098 INFO L276 IsEmpty]: Start isEmpty. Operand 48005 states and 56700 transitions. [2019-09-07 22:14:49,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2019-09-07 22:14:49,117 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:14:49,118 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 22:14:49,118 INFO L418 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:14:49,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:14:49,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1451592179, now seen corresponding path program 1 times [2019-09-07 22:14:49,119 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:14:49,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:14:49,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:14:49,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:14:49,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:14:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:14:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 212 proven. 297 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-09-07 22:14:49,675 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:14:49,675 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 22:14:49,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:14:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:14:49,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-07 22:14:49,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:14:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 305 proven. 2 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2019-09-07 22:14:50,094 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 22:14:50,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 13 [2019-09-07 22:14:50,096 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 22:14:50,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 22:14:50,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-09-07 22:14:50,097 INFO L87 Difference]: Start difference. First operand 48005 states and 56700 transitions. Second operand 13 states. [2019-09-07 22:15:38,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:15:38,756 INFO L93 Difference]: Finished difference Result 206829 states and 261929 transitions. [2019-09-07 22:15:38,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2019-09-07 22:15:38,758 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 447 [2019-09-07 22:15:38,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:15:39,286 INFO L225 Difference]: With dead ends: 206829 [2019-09-07 22:15:39,287 INFO L226 Difference]: Without dead ends: 150507 [2019-09-07 22:15:39,455 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1487 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=923, Invalid=3907, Unknown=0, NotChecked=0, Total=4830 [2019-09-07 22:15:39,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150507 states. [2019-09-07 22:15:42,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150507 to 140629. [2019-09-07 22:15:42,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140629 states. [2019-09-07 22:15:42,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140629 states to 140629 states and 166794 transitions. [2019-09-07 22:15:42,357 INFO L78 Accepts]: Start accepts. Automaton has 140629 states and 166794 transitions. Word has length 447 [2019-09-07 22:15:42,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:15:42,358 INFO L475 AbstractCegarLoop]: Abstraction has 140629 states and 166794 transitions. [2019-09-07 22:15:42,358 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-07 22:15:42,358 INFO L276 IsEmpty]: Start isEmpty. Operand 140629 states and 166794 transitions. [2019-09-07 22:15:42,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2019-09-07 22:15:42,388 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:15:42,389 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2019-09-07 22:15:42,389 INFO L418 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:15:42,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:15:42,390 INFO L82 PathProgramCache]: Analyzing trace with hash 781196395, now seen corresponding path program 1 times [2019-09-07 22:15:42,390 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:15:42,390 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:15:42,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:15:42,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:15:42,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:15:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:15:43,071 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 6 proven. 90 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2019-09-07 22:15:43,072 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:15:43,072 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-07 22:15:43,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 22:15:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:15:43,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-07 22:15:43,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:15:43,270 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,270 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,270 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,271 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,284 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,287 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,287 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:43,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:15:47,801 WARN L188 SmtUtils]: Spent 4.35 s on a formula simplification. DAG size of input: 110 DAG size of output: 41 [2019-09-07 22:15:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (7)] Exception during sending of exit command (exit): Broken pipe [2019-09-07 22:15:50,383 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 22:15:50,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2019-09-07 22:15:50,384 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-07 22:15:50,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-07 22:15:50,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2019-09-07 22:15:50,385 INFO L87 Difference]: Start difference. First operand 140629 states and 166794 transitions. Second operand 14 states. [2019-09-07 22:18:54,843 WARN L188 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 48 [2019-09-07 22:23:35,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:23:35,765 INFO L93 Difference]: Finished difference Result 344065 states and 417736 transitions. [2019-09-07 22:23:35,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2019-09-07 22:23:35,767 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 508 [2019-09-07 22:23:35,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:23:36,483 INFO L225 Difference]: With dead ends: 344065 [2019-09-07 22:23:36,483 INFO L226 Difference]: Without dead ends: 198591 [2019-09-07 22:23:36,669 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 550 SyntacticMatches, 5 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=659, Invalid=3123, Unknown=0, NotChecked=0, Total=3782 [2019-09-07 22:23:36,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198591 states. [2019-09-07 22:23:39,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198591 to 184788. [2019-09-07 22:23:39,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184788 states. [2019-09-07 22:23:39,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184788 states to 184788 states and 218402 transitions. [2019-09-07 22:23:39,864 INFO L78 Accepts]: Start accepts. Automaton has 184788 states and 218402 transitions. Word has length 508 [2019-09-07 22:23:39,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:23:39,865 INFO L475 AbstractCegarLoop]: Abstraction has 184788 states and 218402 transitions. [2019-09-07 22:23:39,865 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-07 22:23:39,866 INFO L276 IsEmpty]: Start isEmpty. Operand 184788 states and 218402 transitions. [2019-09-07 22:23:39,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2019-09-07 22:23:39,890 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:23:39,890 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 22:23:39,890 INFO L418 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:23:39,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:23:39,891 INFO L82 PathProgramCache]: Analyzing trace with hash -227304845, now seen corresponding path program 1 times [2019-09-07 22:23:39,891 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:23:39,891 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:23:39,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:23:39,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:23:39,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:23:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:23:40,816 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 354 proven. 15 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2019-09-07 22:23:40,817 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:23:40,817 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 22:23:40,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:23:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:23:40,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-07 22:23:40,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:23:40,983 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:23:40,983 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:23:41,225 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 354 proven. 15 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2019-09-07 22:23:41,229 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 22:23:41,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2019-09-07 22:23:41,231 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-07 22:23:41,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-07 22:23:41,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-09-07 22:23:41,232 INFO L87 Difference]: Start difference. First operand 184788 states and 218402 transitions. Second operand 10 states. [2019-09-07 22:23:54,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:23:54,778 INFO L93 Difference]: Finished difference Result 433670 states and 516330 transitions. [2019-09-07 22:23:54,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-07 22:23:54,779 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 532 [2019-09-07 22:23:54,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:23:55,667 INFO L225 Difference]: With dead ends: 433670 [2019-09-07 22:23:55,667 INFO L226 Difference]: Without dead ends: 251538 [2019-09-07 22:23:55,858 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2019-09-07 22:23:56,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251538 states. [2019-09-07 22:24:03,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251538 to 236679. [2019-09-07 22:24:03,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236679 states. [2019-09-07 22:24:03,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236679 states to 236679 states and 280208 transitions. [2019-09-07 22:24:04,000 INFO L78 Accepts]: Start accepts. Automaton has 236679 states and 280208 transitions. Word has length 532 [2019-09-07 22:24:04,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:24:04,002 INFO L475 AbstractCegarLoop]: Abstraction has 236679 states and 280208 transitions. [2019-09-07 22:24:04,002 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-07 22:24:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 236679 states and 280208 transitions. [2019-09-07 22:24:04,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2019-09-07 22:24:04,030 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:24:04,031 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2019-09-07 22:24:04,031 INFO L418 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:24:04,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:24:04,032 INFO L82 PathProgramCache]: Analyzing trace with hash 356077146, now seen corresponding path program 1 times [2019-09-07 22:24:04,032 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:24:04,032 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:24:04,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:24:04,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:24:04,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:24:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:24:05,697 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 349 proven. 2 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2019-09-07 22:24:05,697 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:24:05,697 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-07 22:24:05,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 22:24:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:24:05,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 22:24:05,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:24:06,014 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 349 proven. 2 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2019-09-07 22:24:06,019 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 22:24:06,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2019-09-07 22:24:06,020 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-07 22:24:06,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-07 22:24:06,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-07 22:24:06,021 INFO L87 Difference]: Start difference. First operand 236679 states and 280208 transitions. Second operand 7 states. [2019-09-07 22:24:16,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:24:16,469 INFO L93 Difference]: Finished difference Result 464174 states and 554067 transitions. [2019-09-07 22:24:16,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-07 22:24:16,469 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 561 [2019-09-07 22:24:16,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:24:17,192 INFO L225 Difference]: With dead ends: 464174 [2019-09-07 22:24:17,192 INFO L226 Difference]: Without dead ends: 255654 [2019-09-07 22:24:17,430 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 567 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-09-07 22:24:17,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255654 states. [2019-09-07 22:24:24,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255654 to 245381. [2019-09-07 22:24:24,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245381 states. [2019-09-07 22:24:25,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245381 states to 245381 states and 289446 transitions. [2019-09-07 22:24:25,160 INFO L78 Accepts]: Start accepts. Automaton has 245381 states and 289446 transitions. Word has length 561 [2019-09-07 22:24:25,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:24:25,161 INFO L475 AbstractCegarLoop]: Abstraction has 245381 states and 289446 transitions. [2019-09-07 22:24:25,161 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-07 22:24:25,161 INFO L276 IsEmpty]: Start isEmpty. Operand 245381 states and 289446 transitions. [2019-09-07 22:24:25,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2019-09-07 22:24:25,196 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:24:25,197 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 22:24:25,197 INFO L418 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:24:25,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:24:25,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1434825075, now seen corresponding path program 1 times [2019-09-07 22:24:25,197 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:24:25,198 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:24:25,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:24:25,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:24:25,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:24:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:24:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 58 proven. 312 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-07 22:24:27,289 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:24:27,289 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 22:24:27,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:24:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:24:27,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 11 conjunts are in the unsatisfiable core [2019-09-07 22:24:27,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:24:27,482 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,482 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,484 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,484 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,485 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,485 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,486 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,486 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,487 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,487 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,488 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,488 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,489 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,490 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,490 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,491 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,491 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,494 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:27,494 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 22:24:29,866 WARN L188 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 107 DAG size of output: 50 [2019-09-07 22:24:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 288 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-09-07 22:24:33,287 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 22:24:33,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 13 [2019-09-07 22:24:33,288 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 22:24:33,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 22:24:33,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2019-09-07 22:24:33,289 INFO L87 Difference]: Start difference. First operand 245381 states and 289446 transitions. Second operand 13 states. [2019-09-07 22:24:33,511 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-09-07 22:24:36,901 WARN L188 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-07 22:24:44,392 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2019-09-07 22:24:46,614 WARN L188 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 63 [2019-09-07 22:25:08,709 WARN L188 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-07 22:25:17,486 WARN L188 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-07 22:25:40,861 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 67