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/Problem19_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 22:52:56,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 22:52:56,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 22:52:56,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 22:52:56,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 22:52:56,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 22:52:56,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 22:52:56,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 22:52:56,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 22:52:56,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 22:52:56,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 22:52:56,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 22:52:56,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 22:52:56,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 22:52:56,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 22:52:56,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 22:52:56,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 22:52:56,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 22:52:56,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 22:52:56,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 22:52:56,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 22:52:56,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 22:52:56,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 22:52:56,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 22:52:56,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-07 22:52:56,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-07 22:52:56,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-07 22:52:56,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-07 22:52:56,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-07 22:52:56,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-07 22:52:56,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 22:52:56,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 22:52:56,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 22:52:56,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 22:52:56,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 22:52:56,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 22:52:56,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 22:52:56,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 22:52:56,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 22:52:56,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 22:52:56,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 22:52:56,924 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 22:52:56,948 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 22:52:56,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 22:52:56,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 22:52:56,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 22:52:56,951 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 22:52:56,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 22:52:56,952 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 22:52:56,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 22:52:56,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 22:52:56,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 22:52:56,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 22:52:56,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 22:52:56,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 22:52:56,954 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 22:52:56,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 22:52:56,954 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 22:52:56,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 22:52:56,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 22:52:56,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 22:52:56,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 22:52:56,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 22:52:56,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 22:52:56,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 22:52:56,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 22:52:56,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 22:52:56,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 22:52:56,957 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 22:52:56,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 22:52:56,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 22:52:56,990 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 22:52:57,001 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 22:52:57,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 22:52:57,009 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 22:52:57,010 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 22:52:57,010 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label05.c [2019-09-07 22:52:57,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c26f1a58/8b7d23ef437346bc9024afa8508dcfd6/FLAG515687981 [2019-09-07 22:52:57,898 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 22:52:57,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label05.c [2019-09-07 22:52:57,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c26f1a58/8b7d23ef437346bc9024afa8508dcfd6/FLAG515687981 [2019-09-07 22:52:58,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c26f1a58/8b7d23ef437346bc9024afa8508dcfd6 [2019-09-07 22:52:58,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 22:52:58,451 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 22:52:58,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 22:52:58,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 22:52:58,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 22:52:58,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 10:52:58" (1/1) ... [2019-09-07 22:52:58,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f6b865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:52:58, skipping insertion in model container [2019-09-07 22:52:58,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 10:52:58" (1/1) ... [2019-09-07 22:52:58,470 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 22:52:58,726 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 22:53:01,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 22:53:01,040 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 22:53:02,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 22:53:02,142 INFO L192 MainTranslator]: Completed translation [2019-09-07 22:53:02,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:53:02 WrapperNode [2019-09-07 22:53:02,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 22:53:02,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 22:53:02,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 22:53:02,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 22:53:02,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:53:02" (1/1) ... [2019-09-07 22:53:02,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:53:02" (1/1) ... [2019-09-07 22:53:02,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:53:02" (1/1) ... [2019-09-07 22:53:02,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:53:02" (1/1) ... [2019-09-07 22:53:02,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:53:02" (1/1) ... [2019-09-07 22:53:02,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:53:02" (1/1) ... [2019-09-07 22:53:02,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:53:02" (1/1) ... [2019-09-07 22:53:02,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 22:53:02,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 22:53:02,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 22:53:02,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 22:53:02,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:53:02" (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 22:53:02,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 22:53:02,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 22:53:02,693 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 22:53:02,693 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 22:53:02,694 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 22:53:02,694 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 22:53:02,694 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2019-09-07 22:53:02,694 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2019-09-07 22:53:02,694 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 22:53:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 22:53:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 22:53:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 22:53:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 22:53:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2019-09-07 22:53:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2019-09-07 22:53:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 22:53:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 22:53:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 22:53:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 22:53:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 22:53:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 22:53:13,148 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 22:53:13,152 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 22:53:13,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 10:53:13 BoogieIcfgContainer [2019-09-07 22:53:13,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 22:53:13,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 22:53:13,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 22:53:13,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 22:53:13,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 10:52:58" (1/3) ... [2019-09-07 22:53:13,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1962ef72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 10:53:13, skipping insertion in model container [2019-09-07 22:53:13,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:53:02" (2/3) ... [2019-09-07 22:53:13,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1962ef72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 10:53:13, skipping insertion in model container [2019-09-07 22:53:13,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 10:53:13" (3/3) ... [2019-09-07 22:53:13,169 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem19_label05.c [2019-09-07 22:53:13,181 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 22:53:13,191 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 22:53:13,210 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 22:53:13,252 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 22:53:13,253 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 22:53:13,253 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 22:53:13,253 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 22:53:13,253 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 22:53:13,253 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 22:53:13,254 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 22:53:13,254 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 22:53:13,254 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 22:53:13,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states. [2019-09-07 22:53:13,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-07 22:53:13,397 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:53:13,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:53:13,400 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:53:13,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:53:13,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1248929806, now seen corresponding path program 1 times [2019-09-07 22:53:13,411 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:53:13,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:53:13,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:53:13,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:53:13,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:53:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:53:13,802 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 22:53:13,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 22:53:13,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 22:53:13,810 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 22:53:13,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 22:53:13,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 22:53:13,833 INFO L87 Difference]: Start difference. First operand 1777 states. Second operand 3 states. [2019-09-07 22:53:23,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:53:23,687 INFO L93 Difference]: Finished difference Result 4992 states and 9410 transitions. [2019-09-07 22:53:23,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 22:53:23,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2019-09-07 22:53:23,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:53:23,741 INFO L225 Difference]: With dead ends: 4992 [2019-09-07 22:53:23,741 INFO L226 Difference]: Without dead ends: 3153 [2019-09-07 22:53:23,754 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 22:53:23,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2019-09-07 22:53:23,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 3151. [2019-09-07 22:53:23,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3151 states. [2019-09-07 22:53:23,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3151 states to 3151 states and 5670 transitions. [2019-09-07 22:53:23,944 INFO L78 Accepts]: Start accepts. Automaton has 3151 states and 5670 transitions. Word has length 66 [2019-09-07 22:53:23,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:53:23,945 INFO L475 AbstractCegarLoop]: Abstraction has 3151 states and 5670 transitions. [2019-09-07 22:53:23,945 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 22:53:23,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3151 states and 5670 transitions. [2019-09-07 22:53:23,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-09-07 22:53:23,957 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:53:23,958 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 22:53:23,958 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:53:23,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:53:23,959 INFO L82 PathProgramCache]: Analyzing trace with hash -509666803, now seen corresponding path program 1 times [2019-09-07 22:53:23,959 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:53:23,960 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:53:23,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:53:23,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:53:23,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:53:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:53:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:53:24,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 22:53:24,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-07 22:53:24,173 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-07 22:53:24,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-07 22:53:24,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-07 22:53:24,174 INFO L87 Difference]: Start difference. First operand 3151 states and 5670 transitions. Second operand 5 states. [2019-09-07 22:53:42,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:53:42,678 INFO L93 Difference]: Finished difference Result 9353 states and 16969 transitions. [2019-09-07 22:53:42,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-07 22:53:42,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2019-09-07 22:53:42,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:53:42,716 INFO L225 Difference]: With dead ends: 9353 [2019-09-07 22:53:42,717 INFO L226 Difference]: Without dead ends: 6208 [2019-09-07 22:53:42,727 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-07 22:53:42,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6208 states. [2019-09-07 22:53:42,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6208 to 6103. [2019-09-07 22:53:42,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6103 states. [2019-09-07 22:53:42,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6103 states to 6103 states and 9451 transitions. [2019-09-07 22:53:42,904 INFO L78 Accepts]: Start accepts. Automaton has 6103 states and 9451 transitions. Word has length 139 [2019-09-07 22:53:42,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:53:42,904 INFO L475 AbstractCegarLoop]: Abstraction has 6103 states and 9451 transitions. [2019-09-07 22:53:42,905 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-07 22:53:42,905 INFO L276 IsEmpty]: Start isEmpty. Operand 6103 states and 9451 transitions. [2019-09-07 22:53:42,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-09-07 22:53:42,907 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:53:42,907 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 22:53:42,908 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:53:42,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:53:42,908 INFO L82 PathProgramCache]: Analyzing trace with hash 435015165, now seen corresponding path program 1 times [2019-09-07 22:53:42,908 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:53:42,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:53:42,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:53:42,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:53:42,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:53:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:53:43,146 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:53:43,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 22:53:43,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 22:53:43,147 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 22:53:43,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 22:53:43,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-07 22:53:43,148 INFO L87 Difference]: Start difference. First operand 6103 states and 9451 transitions. Second operand 6 states. [2019-09-07 22:53:59,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:53:59,429 INFO L93 Difference]: Finished difference Result 18536 states and 29109 transitions. [2019-09-07 22:53:59,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-07 22:53:59,431 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2019-09-07 22:53:59,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:53:59,488 INFO L225 Difference]: With dead ends: 18536 [2019-09-07 22:53:59,488 INFO L226 Difference]: Without dead ends: 12439 [2019-09-07 22:53:59,593 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-09-07 22:53:59,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12439 states. [2019-09-07 22:53:59,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12439 to 12213. [2019-09-07 22:53:59,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12213 states. [2019-09-07 22:53:59,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12213 states to 12213 states and 18475 transitions. [2019-09-07 22:53:59,893 INFO L78 Accepts]: Start accepts. Automaton has 12213 states and 18475 transitions. Word has length 147 [2019-09-07 22:53:59,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:53:59,893 INFO L475 AbstractCegarLoop]: Abstraction has 12213 states and 18475 transitions. [2019-09-07 22:53:59,893 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 22:53:59,894 INFO L276 IsEmpty]: Start isEmpty. Operand 12213 states and 18475 transitions. [2019-09-07 22:53:59,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-09-07 22:53:59,896 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:53:59,896 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 22:53:59,896 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:53:59,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:53:59,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1534632217, now seen corresponding path program 1 times [2019-09-07 22:53:59,897 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:53:59,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:53:59,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:53:59,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:53:59,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:53:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:54:00,056 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:54:00,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 22:54:00,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-07 22:54:00,057 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-07 22:54:00,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-07 22:54:00,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-07 22:54:00,058 INFO L87 Difference]: Start difference. First operand 12213 states and 18475 transitions. Second operand 5 states. [2019-09-07 22:54:16,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:54:16,260 INFO L93 Difference]: Finished difference Result 37748 states and 58167 transitions. [2019-09-07 22:54:16,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-07 22:54:16,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2019-09-07 22:54:16,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:54:16,342 INFO L225 Difference]: With dead ends: 37748 [2019-09-07 22:54:16,342 INFO L226 Difference]: Without dead ends: 25541 [2019-09-07 22:54:16,371 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-07 22:54:16,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25541 states. [2019-09-07 22:54:17,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25541 to 23291. [2019-09-07 22:54:17,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23291 states. [2019-09-07 22:54:17,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23291 states to 23291 states and 31891 transitions. [2019-09-07 22:54:17,184 INFO L78 Accepts]: Start accepts. Automaton has 23291 states and 31891 transitions. Word has length 167 [2019-09-07 22:54:17,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:54:17,186 INFO L475 AbstractCegarLoop]: Abstraction has 23291 states and 31891 transitions. [2019-09-07 22:54:17,186 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-07 22:54:17,186 INFO L276 IsEmpty]: Start isEmpty. Operand 23291 states and 31891 transitions. [2019-09-07 22:54:17,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-09-07 22:54:17,190 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:54:17,191 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 22:54:17,191 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:54:17,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:54:17,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1537041566, now seen corresponding path program 1 times [2019-09-07 22:54:17,192 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:54:17,193 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:54:17,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:54:17,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:54:17,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:54:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:54:17,391 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:54:17,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 22:54:17,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 22:54:17,392 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 22:54:17,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 22:54:17,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 22:54:17,393 INFO L87 Difference]: Start difference. First operand 23291 states and 31891 transitions. Second operand 6 states. [2019-09-07 22:54:31,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:54:31,022 INFO L93 Difference]: Finished difference Result 60100 states and 84220 transitions. [2019-09-07 22:54:31,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 22:54:31,023 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 230 [2019-09-07 22:54:31,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:54:31,121 INFO L225 Difference]: With dead ends: 60100 [2019-09-07 22:54:31,121 INFO L226 Difference]: Without dead ends: 36815 [2019-09-07 22:54:31,178 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 22:54:31,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36815 states. [2019-09-07 22:54:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36815 to 35947. [2019-09-07 22:54:31,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35947 states. [2019-09-07 22:54:31,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35947 states to 35947 states and 47480 transitions. [2019-09-07 22:54:31,954 INFO L78 Accepts]: Start accepts. Automaton has 35947 states and 47480 transitions. Word has length 230 [2019-09-07 22:54:31,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:54:31,955 INFO L475 AbstractCegarLoop]: Abstraction has 35947 states and 47480 transitions. [2019-09-07 22:54:31,955 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 22:54:31,955 INFO L276 IsEmpty]: Start isEmpty. Operand 35947 states and 47480 transitions. [2019-09-07 22:54:31,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 738 [2019-09-07 22:54:31,979 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:54:31,980 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:31,981 INFO L418 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:54:31,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:54:31,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1109858332, now seen corresponding path program 1 times [2019-09-07 22:54:31,981 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:54:31,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:54:31,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:54:31,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:54:31,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:54:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:54:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 194 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:54:33,113 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:54:33,113 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) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 22:54:33,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:54:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:54:33,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 22:54:33,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:54:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 194 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:54:33,933 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 22:54:33,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 22:54:33,936 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 22:54:33,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 22:54:33,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 22:54:33,938 INFO L87 Difference]: Start difference. First operand 35947 states and 47480 transitions. Second operand 9 states. [2019-09-07 22:55:07,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:55:07,738 INFO L93 Difference]: Finished difference Result 166464 states and 256208 transitions. [2019-09-07 22:55:07,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-07 22:55:07,738 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 737 [2019-09-07 22:55:07,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:55:08,307 INFO L225 Difference]: With dead ends: 166464 [2019-09-07 22:55:08,307 INFO L226 Difference]: Without dead ends: 130523 [2019-09-07 22:55:08,422 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 762 GetRequests, 742 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2019-09-07 22:55:08,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130523 states. [2019-09-07 22:55:11,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130523 to 127307. [2019-09-07 22:55:11,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127307 states. [2019-09-07 22:55:12,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127307 states to 127307 states and 175696 transitions. [2019-09-07 22:55:12,306 INFO L78 Accepts]: Start accepts. Automaton has 127307 states and 175696 transitions. Word has length 737 [2019-09-07 22:55:12,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:55:12,309 INFO L475 AbstractCegarLoop]: Abstraction has 127307 states and 175696 transitions. [2019-09-07 22:55:12,309 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 22:55:12,309 INFO L276 IsEmpty]: Start isEmpty. Operand 127307 states and 175696 transitions. [2019-09-07 22:55:12,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2019-09-07 22:55:12,335 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:55:12,345 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:12,345 INFO L418 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:55:12,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:55:12,346 INFO L82 PathProgramCache]: Analyzing trace with hash -2119436562, now seen corresponding path program 1 times [2019-09-07 22:55:12,346 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:55:12,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:55:12,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:55:12,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:55:12,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:55:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:55:16,167 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 60 proven. 269 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:55:16,169 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:55:16,169 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 22:55:16,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:55:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:55:16,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 22:55:16,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:55:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2019-09-07 22:55:16,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 22:55:16,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2019-09-07 22:55:16,775 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 22:55:16,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 22:55:16,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-09-07 22:55:16,776 INFO L87 Difference]: Start difference. First operand 127307 states and 175696 transitions. Second operand 9 states. [2019-09-07 22:55:50,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:55:50,455 INFO L93 Difference]: Finished difference Result 285125 states and 410971 transitions. [2019-09-07 22:55:50,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-07 22:55:50,455 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 772 [2019-09-07 22:55:50,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:55:51,029 INFO L225 Difference]: With dead ends: 285125 [2019-09-07 22:55:51,029 INFO L226 Difference]: Without dead ends: 157824 [2019-09-07 22:55:51,766 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 783 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2019-09-07 22:55:51,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157824 states. [2019-09-07 22:55:54,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157824 to 152226. [2019-09-07 22:55:54,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152226 states. [2019-09-07 22:55:54,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152226 states to 152226 states and 210437 transitions. [2019-09-07 22:55:54,847 INFO L78 Accepts]: Start accepts. Automaton has 152226 states and 210437 transitions. Word has length 772 [2019-09-07 22:55:54,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:55:54,849 INFO L475 AbstractCegarLoop]: Abstraction has 152226 states and 210437 transitions. [2019-09-07 22:55:54,849 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 22:55:54,849 INFO L276 IsEmpty]: Start isEmpty. Operand 152226 states and 210437 transitions. [2019-09-07 22:55:54,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2019-09-07 22:55:54,886 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:55:54,886 INFO L399 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:54,887 INFO L418 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:55:54,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:55:54,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1579247004, now seen corresponding path program 1 times [2019-09-07 22:55:54,888 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:55:54,888 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:55:54,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:55:54,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:55:54,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:55:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:55:56,393 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2019-09-07 22:55:56,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 22:55:56,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 22:55:56,395 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 22:55:56,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 22:55:56,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 22:55:56,395 INFO L87 Difference]: Start difference. First operand 152226 states and 210437 transitions. Second operand 3 states. [2019-09-07 22:56:07,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:56:07,975 INFO L93 Difference]: Finished difference Result 352645 states and 514999 transitions. [2019-09-07 22:56:07,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 22:56:07,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 875 [2019-09-07 22:56:07,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:56:08,630 INFO L225 Difference]: With dead ends: 352645 [2019-09-07 22:56:08,631 INFO L226 Difference]: Without dead ends: 200429 [2019-09-07 22:56:08,878 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 22:56:09,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200429 states. [2019-09-07 22:56:16,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200429 to 198741. [2019-09-07 22:56:16,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198741 states. [2019-09-07 22:56:17,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198741 states to 198741 states and 275207 transitions. [2019-09-07 22:56:17,547 INFO L78 Accepts]: Start accepts. Automaton has 198741 states and 275207 transitions. Word has length 875 [2019-09-07 22:56:17,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:56:17,548 INFO L475 AbstractCegarLoop]: Abstraction has 198741 states and 275207 transitions. [2019-09-07 22:56:17,549 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 22:56:17,549 INFO L276 IsEmpty]: Start isEmpty. Operand 198741 states and 275207 transitions. [2019-09-07 22:56:17,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1256 [2019-09-07 22:56:17,705 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:56:17,706 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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] [2019-09-07 22:56:17,706 INFO L418 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:56:17,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:56:17,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1999866190, now seen corresponding path program 1 times [2019-09-07 22:56:17,707 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:56:17,707 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:56:17,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:56:17,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:56:17,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:56:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:56:23,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1468 backedges. 573 proven. 164 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2019-09-07 22:56:23,161 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:56:23,161 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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 22:56:23,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:56:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:56:23,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 22:56:23,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:56:24,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1468 backedges. 1195 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2019-09-07 22:56:24,163 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 22:56:24,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 22:56:24,167 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 22:56:24,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 22:56:24,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 22:56:24,168 INFO L87 Difference]: Start difference. First operand 198741 states and 275207 transitions. Second operand 9 states. [2019-09-07 22:57:02,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:57:02,010 INFO L93 Difference]: Finished difference Result 480433 states and 801451 transitions. [2019-09-07 22:57:02,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-07 22:57:02,010 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1255 [2019-09-07 22:57:02,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:57:03,354 INFO L225 Difference]: With dead ends: 480433 [2019-09-07 22:57:03,355 INFO L226 Difference]: Without dead ends: 281702 [2019-09-07 22:57:03,757 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1278 GetRequests, 1262 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2019-09-07 22:57:03,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281702 states. [2019-09-07 22:57:12,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281702 to 279277. [2019-09-07 22:57:12,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279277 states. [2019-09-07 22:57:23,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279277 states to 279277 states and 457694 transitions. [2019-09-07 22:57:23,382 INFO L78 Accepts]: Start accepts. Automaton has 279277 states and 457694 transitions. Word has length 1255 [2019-09-07 22:57:23,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:57:23,384 INFO L475 AbstractCegarLoop]: Abstraction has 279277 states and 457694 transitions. [2019-09-07 22:57:23,384 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 22:57:23,384 INFO L276 IsEmpty]: Start isEmpty. Operand 279277 states and 457694 transitions. [2019-09-07 22:57:23,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1302 [2019-09-07 22:57:23,542 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:57:23,543 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:57:23,543 INFO L418 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:57:23,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:57:23,544 INFO L82 PathProgramCache]: Analyzing trace with hash -132917697, now seen corresponding path program 1 times [2019-09-07 22:57:23,544 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:57:23,544 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:57:23,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:57:23,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:57:23,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:57:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:57:30,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 551 proven. 153 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2019-09-07 22:57:30,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:57:30,629 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 22:57:30,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:57:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:57:30,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 22:57:31,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:57:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 1090 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2019-09-07 22:57:32,051 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 22:57:32,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 22:57:32,054 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 22:57:32,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 22:57:32,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-09-07 22:57:32,055 INFO L87 Difference]: Start difference. First operand 279277 states and 457694 transitions. Second operand 9 states. [2019-09-07 22:58:32,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:58:32,692 INFO L93 Difference]: Finished difference Result 673743 states and 1512801 transitions. [2019-09-07 22:58:32,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-09-07 22:58:32,692 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1301 [2019-09-07 22:58:32,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:58:36,954 INFO L225 Difference]: With dead ends: 673743 [2019-09-07 22:58:36,954 INFO L226 Difference]: Without dead ends: 381285 [2019-09-07 22:58:37,698 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1390 GetRequests, 1340 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=509, Invalid=2143, Unknown=0, NotChecked=0, Total=2652 [2019-09-07 22:58:37,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381285 states. [2019-09-07 22:59:00,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381285 to 375659. [2019-09-07 22:59:00,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375659 states. [2019-09-07 22:59:25,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375659 states to 375659 states and 820630 transitions. [2019-09-07 22:59:25,384 INFO L78 Accepts]: Start accepts. Automaton has 375659 states and 820630 transitions. Word has length 1301 [2019-09-07 22:59:25,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:59:25,385 INFO L475 AbstractCegarLoop]: Abstraction has 375659 states and 820630 transitions. [2019-09-07 22:59:25,385 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 22:59:25,385 INFO L276 IsEmpty]: Start isEmpty. Operand 375659 states and 820630 transitions. [2019-09-07 22:59:25,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1307 [2019-09-07 22:59:25,453 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:59:25,454 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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] [2019-09-07 22:59:25,454 INFO L418 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:59:25,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:59:25,455 INFO L82 PathProgramCache]: Analyzing trace with hash 852077760, now seen corresponding path program 1 times [2019-09-07 22:59:25,455 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:59:25,455 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:59:25,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:59:25,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:59:25,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:59:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:59:29,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1763 backedges. 1123 proven. 186 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2019-09-07 22:59:29,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 22:59:29,843 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 22:59:29,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:59:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:59:30,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-07 22:59:30,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 22:59:30,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1763 backedges. 1306 proven. 2 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2019-09-07 22:59:30,937 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 22:59:30,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6] total 17 [2019-09-07 22:59:30,940 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-07 22:59:30,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-07 22:59:30,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-09-07 22:59:30,940 INFO L87 Difference]: Start difference. First operand 375659 states and 820630 transitions. Second operand 17 states. [2019-09-07 23:02:00,952 WARN L188 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2019-09-07 23:02:20,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:02:20,720 INFO L93 Difference]: Finished difference Result 1262991 states and 3222693 transitions. [2019-09-07 23:02:20,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2019-09-07 23:02:20,720 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1306 [2019-09-07 23:02:20,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:02:28,537 INFO L225 Difference]: With dead ends: 1262991 [2019-09-07 23:02:28,537 INFO L226 Difference]: Without dead ends: 887342 [2019-09-07 23:02:44,556 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1632 GetRequests, 1449 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14111 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=4092, Invalid=29948, Unknown=0, NotChecked=0, Total=34040 [2019-09-07 23:02:45,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887342 states.