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/Problem06_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 15:29:05,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 15:29:05,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 15:29:05,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 15:29:05,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 15:29:05,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 15:29:05,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 15:29:05,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 15:29:05,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 15:29:05,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 15:29:05,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 15:29:05,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 15:29:05,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 15:29:05,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 15:29:05,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 15:29:05,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 15:29:05,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 15:29:05,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 15:29:05,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 15:29:05,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 15:29:05,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 15:29:05,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 15:29:05,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 15:29:05,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 15:29:05,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-07 15:29:05,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 15:29:05,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 15:29:05,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 15:29:05,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 15:29:05,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 15:29:05,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 15:29:05,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 15:29:05,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 15:29:05,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 15:29:05,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 15:29:05,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 15:29:05,878 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 15:29:05,901 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 15:29:05,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 15:29:05,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 15:29:05,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 15:29:05,904 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 15:29:05,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 15:29:05,905 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 15:29:05,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 15:29:05,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 15:29:05,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 15:29:05,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 15:29:05,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 15:29:05,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 15:29:05,906 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 15:29:05,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 15:29:05,906 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 15:29:05,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 15:29:05,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 15:29:05,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 15:29:05,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 15:29:05,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 15:29:05,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 15:29:05,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 15:29:05,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 15:29:05,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 15:29:05,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 15:29:05,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 15:29:05,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 15:29:05,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 15:29:05,969 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 15:29:05,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 15:29:05,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 15:29:05,990 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 15:29:05,990 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 15:29:05,991 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label57.c [2019-09-07 15:29:06,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e5bd5bec/797fcbe677534246a6d6f4ecfd5ecd74/FLAG8e0adad3a [2019-09-07 15:29:07,084 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 15:29:07,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem06_label57.c [2019-09-07 15:29:07,187 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e5bd5bec/797fcbe677534246a6d6f4ecfd5ecd74/FLAG8e0adad3a [2019-09-07 15:29:07,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e5bd5bec/797fcbe677534246a6d6f4ecfd5ecd74 [2019-09-07 15:29:07,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 15:29:07,404 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 15:29:07,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 15:29:07,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 15:29:07,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 15:29:07,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:29:07" (1/1) ... [2019-09-07 15:29:07,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50bcf07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:07, skipping insertion in model container [2019-09-07 15:29:07,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:29:07" (1/1) ... [2019-09-07 15:29:07,420 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 15:29:07,615 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 15:29:09,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 15:29:09,973 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 15:29:11,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 15:29:11,403 INFO L192 MainTranslator]: Completed translation [2019-09-07 15:29:11,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:11 WrapperNode [2019-09-07 15:29:11,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 15:29:11,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 15:29:11,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 15:29:11,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 15:29:11,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:11" (1/1) ... [2019-09-07 15:29:11,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:11" (1/1) ... [2019-09-07 15:29:11,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:11" (1/1) ... [2019-09-07 15:29:11,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:11" (1/1) ... [2019-09-07 15:29:11,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:11" (1/1) ... [2019-09-07 15:29:11,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:11" (1/1) ... [2019-09-07 15:29:11,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:11" (1/1) ... [2019-09-07 15:29:11,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 15:29:11,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 15:29:11,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 15:29:11,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 15:29:11,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:11" (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 15:29:11,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 15:29:11,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 15:29:11,841 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 15:29:11,841 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 15:29:11,842 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 15:29:11,842 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 15:29:11,842 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2019-09-07 15:29:11,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 15:29:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 15:29:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 15:29:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 15:29:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 15:29:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2019-09-07 15:29:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 15:29:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 15:29:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 15:29:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 15:29:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 15:29:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 15:29:19,171 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 15:29:19,171 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 15:29:19,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:29:19 BoogieIcfgContainer [2019-09-07 15:29:19,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 15:29:19,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 15:29:19,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 15:29:19,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 15:29:19,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 03:29:07" (1/3) ... [2019-09-07 15:29:19,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbc0c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:29:19, skipping insertion in model container [2019-09-07 15:29:19,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:11" (2/3) ... [2019-09-07 15:29:19,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbc0c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:29:19, skipping insertion in model container [2019-09-07 15:29:19,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:29:19" (3/3) ... [2019-09-07 15:29:19,181 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem06_label57.c [2019-09-07 15:29:19,192 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 15:29:19,201 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 15:29:19,217 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 15:29:19,256 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 15:29:19,257 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 15:29:19,257 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 15:29:19,257 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 15:29:19,257 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 15:29:19,257 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 15:29:19,257 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 15:29:19,258 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 15:29:19,258 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 15:29:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states. [2019-09-07 15:29:19,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 988 [2019-09-07 15:29:19,376 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:29:19,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:19,380 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:29:19,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:29:19,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1906250504, now seen corresponding path program 1 times [2019-09-07 15:29:19,388 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:29:19,389 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:29:19,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:29:19,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:29:19,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:29:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:29:22,371 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 15:29:22,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 15:29:22,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 15:29:22,380 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 15:29:22,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 15:29:22,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 15:29:22,393 INFO L87 Difference]: Start difference. First operand 1315 states. Second operand 3 states. [2019-09-07 15:29:29,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:29:29,328 INFO L93 Difference]: Finished difference Result 3730 states and 6979 transitions. [2019-09-07 15:29:29,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 15:29:29,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 987 [2019-09-07 15:29:29,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:29:29,374 INFO L225 Difference]: With dead ends: 3730 [2019-09-07 15:29:29,374 INFO L226 Difference]: Without dead ends: 2353 [2019-09-07 15:29:29,388 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 15:29:29,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2019-09-07 15:29:29,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 2331. [2019-09-07 15:29:29,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2331 states. [2019-09-07 15:29:29,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 4080 transitions. [2019-09-07 15:29:29,571 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 4080 transitions. Word has length 987 [2019-09-07 15:29:29,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:29:29,575 INFO L475 AbstractCegarLoop]: Abstraction has 2331 states and 4080 transitions. [2019-09-07 15:29:29,575 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 15:29:29,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 4080 transitions. [2019-09-07 15:29:29,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2019-09-07 15:29:29,622 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:29:29,623 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:29,624 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:29:29,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:29:29,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1639830652, now seen corresponding path program 1 times [2019-09-07 15:29:29,625 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:29:29,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:29:29,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:29:29,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:29:29,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:29:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:29:31,726 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 15:29:31,726 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 15:29:31,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 15:29:31,730 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 15:29:31,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 15:29:31,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 15:29:31,731 INFO L87 Difference]: Start difference. First operand 2331 states and 4080 transitions. Second operand 3 states. [2019-09-07 15:29:37,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:29:37,856 INFO L93 Difference]: Finished difference Result 6763 states and 11977 transitions. [2019-09-07 15:29:37,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 15:29:37,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1015 [2019-09-07 15:29:37,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:29:37,890 INFO L225 Difference]: With dead ends: 6763 [2019-09-07 15:29:37,890 INFO L226 Difference]: Without dead ends: 4438 [2019-09-07 15:29:37,898 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 15:29:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4438 states. [2019-09-07 15:29:38,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4438 to 4427. [2019-09-07 15:29:38,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4427 states. [2019-09-07 15:29:38,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4427 states to 4427 states and 7235 transitions. [2019-09-07 15:29:38,047 INFO L78 Accepts]: Start accepts. Automaton has 4427 states and 7235 transitions. Word has length 1015 [2019-09-07 15:29:38,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:29:38,049 INFO L475 AbstractCegarLoop]: Abstraction has 4427 states and 7235 transitions. [2019-09-07 15:29:38,049 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 15:29:38,050 INFO L276 IsEmpty]: Start isEmpty. Operand 4427 states and 7235 transitions. [2019-09-07 15:29:38,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1032 [2019-09-07 15:29:38,097 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:29:38,098 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:38,099 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:29:38,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:29:38,100 INFO L82 PathProgramCache]: Analyzing trace with hash 998578561, now seen corresponding path program 1 times [2019-09-07 15:29:38,101 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:29:38,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:29:38,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:29:38,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:29:38,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:29:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:29:38,949 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 15:29:38,949 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 15:29:38,949 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 15:29:38,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:29:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:29:39,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 2345 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 15:29:39,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 15:29:40,347 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 15:29:40,355 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 15:29:40,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 15:29:40,359 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 15:29:40,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 15:29:40,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-09-07 15:29:40,359 INFO L87 Difference]: Start difference. First operand 4427 states and 7235 transitions. Second operand 9 states. [2019-09-07 15:30:15,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:30:15,657 INFO L93 Difference]: Finished difference Result 31176 states and 58899 transitions. [2019-09-07 15:30:15,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-09-07 15:30:15,659 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1031 [2019-09-07 15:30:15,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:30:15,897 INFO L225 Difference]: With dead ends: 31176 [2019-09-07 15:30:15,897 INFO L226 Difference]: Without dead ends: 26755 [2019-09-07 15:30:15,933 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1089 GetRequests, 1050 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=1316, Unknown=0, NotChecked=0, Total=1640 [2019-09-07 15:30:15,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26755 states. [2019-09-07 15:30:16,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26755 to 26352. [2019-09-07 15:30:16,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26352 states. [2019-09-07 15:30:18,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26352 states to 26352 states and 41078 transitions. [2019-09-07 15:30:18,237 INFO L78 Accepts]: Start accepts. Automaton has 26352 states and 41078 transitions. Word has length 1031 [2019-09-07 15:30:18,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:30:18,238 INFO L475 AbstractCegarLoop]: Abstraction has 26352 states and 41078 transitions. [2019-09-07 15:30:18,238 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 15:30:18,238 INFO L276 IsEmpty]: Start isEmpty. Operand 26352 states and 41078 transitions. [2019-09-07 15:30:18,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1045 [2019-09-07 15:30:18,384 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:30:18,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:18,385 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:30:18,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:30:18,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1836129100, now seen corresponding path program 1 times [2019-09-07 15:30:18,387 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:30:18,387 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:30:18,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:30:18,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:30:18,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:30:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:30:19,887 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 15:30:19,888 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 15:30:19,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 15:30:19,891 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 15:30:19,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 15:30:19,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 15:30:19,892 INFO L87 Difference]: Start difference. First operand 26352 states and 41078 transitions. Second operand 6 states. [2019-09-07 15:30:29,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:30:29,108 INFO L93 Difference]: Finished difference Result 66697 states and 113797 transitions. [2019-09-07 15:30:29,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 15:30:29,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1044 [2019-09-07 15:30:29,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:30:29,338 INFO L225 Difference]: With dead ends: 66697 [2019-09-07 15:30:29,338 INFO L226 Difference]: Without dead ends: 40351 [2019-09-07 15:30:29,452 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 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 15:30:29,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40351 states. [2019-09-07 15:30:30,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40351 to 39996. [2019-09-07 15:30:30,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39996 states. [2019-09-07 15:30:30,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39996 states to 39996 states and 60641 transitions. [2019-09-07 15:30:30,684 INFO L78 Accepts]: Start accepts. Automaton has 39996 states and 60641 transitions. Word has length 1044 [2019-09-07 15:30:30,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:30:30,685 INFO L475 AbstractCegarLoop]: Abstraction has 39996 states and 60641 transitions. [2019-09-07 15:30:30,685 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 15:30:30,685 INFO L276 IsEmpty]: Start isEmpty. Operand 39996 states and 60641 transitions. [2019-09-07 15:30:30,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1057 [2019-09-07 15:30:30,817 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:30:30,818 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:30,819 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:30:30,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:30:30,819 INFO L82 PathProgramCache]: Analyzing trace with hash 750674647, now seen corresponding path program 1 times [2019-09-07 15:30:30,819 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:30:30,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:30:30,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:30:30,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:30:30,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:30:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:30:32,153 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 15:30:32,154 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 15:30:32,154 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 15:30:32,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:30:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:30:32,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 2373 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-07 15:30:32,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 15:30:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe [2019-09-07 15:30:34,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 15:30:34,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-09-07 15:30:34,035 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-07 15:30:34,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-07 15:30:34,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-07 15:30:34,036 INFO L87 Difference]: Start difference. First operand 39996 states and 60641 transitions. Second operand 7 states. [2019-09-07 15:30:52,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:30:52,355 INFO L93 Difference]: Finished difference Result 142997 states and 255933 transitions. [2019-09-07 15:30:52,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-07 15:30:52,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1056 [2019-09-07 15:30:52,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:30:52,976 INFO L225 Difference]: With dead ends: 142997 [2019-09-07 15:30:52,976 INFO L226 Difference]: Without dead ends: 103007 [2019-09-07 15:30:53,105 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 1064 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-09-07 15:30:53,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103007 states. [2019-09-07 15:30:55,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103007 to 102376. [2019-09-07 15:30:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102376 states. [2019-09-07 15:30:56,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102376 states to 102376 states and 158275 transitions. [2019-09-07 15:30:56,326 INFO L78 Accepts]: Start accepts. Automaton has 102376 states and 158275 transitions. Word has length 1056 [2019-09-07 15:30:56,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:30:56,326 INFO L475 AbstractCegarLoop]: Abstraction has 102376 states and 158275 transitions. [2019-09-07 15:30:56,327 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-07 15:30:56,327 INFO L276 IsEmpty]: Start isEmpty. Operand 102376 states and 158275 transitions. [2019-09-07 15:30:58,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2019-09-07 15:30:58,958 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:30:58,961 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:58,961 INFO L418 AbstractCegarLoop]: === Iteration 6 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:30:58,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:30:58,962 INFO L82 PathProgramCache]: Analyzing trace with hash -784619653, now seen corresponding path program 1 times [2019-09-07 15:30:58,962 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:30:58,962 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:30:58,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:30:58,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:30:58,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:30:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:30:59,663 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 69 proven. 36 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-09-07 15:30:59,664 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 15:30:59,664 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 15:30:59,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:31:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:31:00,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 2703 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-07 15:31:00,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 15:31:01,212 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-09-07 15:31:01,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 15:31:01,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2019-09-07 15:31:01,222 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 15:31:01,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 15:31:01,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 15:31:01,223 INFO L87 Difference]: Start difference. First operand 102376 states and 158275 transitions. Second operand 9 states. [2019-09-07 15:31:14,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:31:14,938 INFO L93 Difference]: Finished difference Result 256529 states and 430674 transitions. [2019-09-07 15:31:14,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-07 15:31:14,940 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1072 [2019-09-07 15:31:14,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:31:15,653 INFO L225 Difference]: With dead ends: 256529 [2019-09-07 15:31:15,654 INFO L226 Difference]: Without dead ends: 154159 [2019-09-07 15:31:15,852 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1101 GetRequests, 1082 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-09-07 15:31:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154159 states. [2019-09-07 15:31:21,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154159 to 153438. [2019-09-07 15:31:21,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153438 states. [2019-09-07 15:31:22,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153438 states to 153438 states and 238844 transitions. [2019-09-07 15:31:22,233 INFO L78 Accepts]: Start accepts. Automaton has 153438 states and 238844 transitions. Word has length 1072 [2019-09-07 15:31:22,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:31:22,233 INFO L475 AbstractCegarLoop]: Abstraction has 153438 states and 238844 transitions. [2019-09-07 15:31:22,233 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 15:31:22,234 INFO L276 IsEmpty]: Start isEmpty. Operand 153438 states and 238844 transitions. [2019-09-07 15:31:22,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1086 [2019-09-07 15:31:22,802 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:31:22,802 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:22,803 INFO L418 AbstractCegarLoop]: === Iteration 7 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:31:22,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:31:22,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1564257516, now seen corresponding path program 1 times [2019-09-07 15:31:22,803 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:31:22,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:31:22,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:31:22,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:31:22,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:31:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:31:24,332 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 123 proven. 28 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-09-07 15:31:24,332 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 15:31:24,332 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 15:31:24,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:31:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:31:24,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 2870 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 15:31:24,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 15:31:25,802 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-07 15:31:25,808 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 15:31:25,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 15:31:25,810 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 15:31:25,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 15:31:25,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-09-07 15:31:25,811 INFO L87 Difference]: Start difference. First operand 153438 states and 238844 transitions. Second operand 9 states. [2019-09-07 15:32:36,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:32:36,277 INFO L93 Difference]: Finished difference Result 673644 states and 2005143 transitions. [2019-09-07 15:32:36,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-09-07 15:32:36,278 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1085 [2019-09-07 15:32:36,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:32:48,834 INFO L225 Difference]: With dead ends: 673644 [2019-09-07 15:32:48,835 INFO L226 Difference]: Without dead ends: 520212 [2019-09-07 15:32:49,454 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1177 GetRequests, 1124 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=569, Invalid=2401, Unknown=0, NotChecked=0, Total=2970 [2019-09-07 15:32:49,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520212 states. [2019-09-07 15:33:08,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520212 to 503953. [2019-09-07 15:33:08,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503953 states. [2019-09-07 15:33:22,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503953 states to 503953 states and 894444 transitions. [2019-09-07 15:33:22,157 INFO L78 Accepts]: Start accepts. Automaton has 503953 states and 894444 transitions. Word has length 1085 [2019-09-07 15:33:22,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:33:22,158 INFO L475 AbstractCegarLoop]: Abstraction has 503953 states and 894444 transitions. [2019-09-07 15:33:22,158 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 15:33:22,158 INFO L276 IsEmpty]: Start isEmpty. Operand 503953 states and 894444 transitions. [2019-09-07 15:33:26,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1100 [2019-09-07 15:33:26,642 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:33:26,643 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:26,643 INFO L418 AbstractCegarLoop]: === Iteration 8 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:33:26,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:33:26,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1720122979, now seen corresponding path program 1 times [2019-09-07 15:33:26,644 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:33:26,644 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:33:26,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:33:26,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:33:26,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:33:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:33:29,303 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 113 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-07 15:33:29,304 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 15:33:29,304 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 15:33:29,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:33:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:33:29,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 2574 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 15:33:29,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 15:33:37,543 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 121 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-07 15:33:37,550 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 15:33:37,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-09-07 15:33:37,552 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-07 15:33:37,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-07 15:33:37,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-09-07 15:33:37,553 INFO L87 Difference]: Start difference. First operand 503953 states and 894444 transitions. Second operand 8 states. [2019-09-07 15:34:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:34:14,496 INFO L93 Difference]: Finished difference Result 1082535 states and 2068856 transitions. [2019-09-07 15:34:14,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-07 15:34:14,497 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1099 [2019-09-07 15:34:14,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:34:19,356 INFO L225 Difference]: With dead ends: 1082535 [2019-09-07 15:34:19,357 INFO L226 Difference]: Without dead ends: 578588 [2019-09-07 15:34:20,364 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1125 GetRequests, 1108 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2019-09-07 15:34:20,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578588 states. [2019-09-07 15:34:48,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578588 to 577539. [2019-09-07 15:34:48,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577539 states. [2019-09-07 15:35:07,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577539 states to 577539 states and 1063452 transitions. [2019-09-07 15:35:07,809 INFO L78 Accepts]: Start accepts. Automaton has 577539 states and 1063452 transitions. Word has length 1099 [2019-09-07 15:35:07,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:35:07,810 INFO L475 AbstractCegarLoop]: Abstraction has 577539 states and 1063452 transitions. [2019-09-07 15:35:07,810 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-07 15:35:07,810 INFO L276 IsEmpty]: Start isEmpty. Operand 577539 states and 1063452 transitions. [2019-09-07 15:35:12,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1127 [2019-09-07 15:35:12,754 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:35:12,755 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:12,755 INFO L418 AbstractCegarLoop]: === Iteration 9 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:35:12,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:35:12,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1533592845, now seen corresponding path program 1 times [2019-09-07 15:35:12,756 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:35:12,756 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:35:12,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:35:12,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:35:12,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:35:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:35:23,331 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 15:35:23,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 15:35:23,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-07 15:35:23,333 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-07 15:35:23,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-07 15:35:23,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-09-07 15:35:23,333 INFO L87 Difference]: Start difference. First operand 577539 states and 1063452 transitions. Second operand 7 states. [2019-09-07 15:36:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:36:31,322 INFO L93 Difference]: Finished difference Result 1681281 states and 4195423 transitions. [2019-09-07 15:36:31,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-07 15:36:31,322 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1126 [2019-09-07 15:36:31,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:37:09,180 INFO L225 Difference]: With dead ends: 1681281 [2019-09-07 15:37:09,180 INFO L226 Difference]: Without dead ends: 1103748 [2019-09-07 15:37:10,723 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110