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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem09_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 13:45:19,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 13:45:19,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 13:45:19,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-09 13:45:19,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-09 13:45:19,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-09 13:45:19,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-09 13:45:19,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-09 13:45:19,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-09 13:45:19,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-09 13:45:19,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-09 13:45:19,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-09 13:45:19,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-09 13:45:19,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-09 13:45:19,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-09 13:45:19,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-09 13:45:19,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-09 13:45:19,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-09 13:45:19,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-09 13:45:19,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-09 13:45:19,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-09 13:45:19,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-09 13:45:19,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-09 13:45:19,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-09 13:45:19,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-09 13:45:19,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-09 13:45:19,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-09 13:45:19,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-09 13:45:19,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-09 13:45:19,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-09 13:45:19,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 13:45:19,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 13:45:19,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 13:45:19,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 13:45:19,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 13:45:19,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 13:45:19,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 13:45:19,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 13:45:19,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 13:45:19,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 13:45:19,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 13:45:19,818 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-09 13:45:19,853 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 13:45:19,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 13:45:19,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 13:45:19,855 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 13:45:19,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 13:45:19,856 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 13:45:19,856 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 13:45:19,856 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 13:45:19,856 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 13:45:19,856 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 13:45:19,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 13:45:19,857 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 13:45:19,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 13:45:19,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 13:45:19,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 13:45:19,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 13:45:19,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 13:45:19,859 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 13:45:19,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 13:45:19,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 13:45:19,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 13:45:19,859 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 13:45:19,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 13:45:19,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 13:45:19,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 13:45:19,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 13:45:19,860 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 13:45:19,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 13:45:19,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 13:45:19,861 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 13:45:19,904 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 13:45:19,917 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 13:45:19,921 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 13:45:19,922 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 13:45:19,923 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 13:45:19,923 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem09_label40.c [2019-09-09 13:45:19,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3faa48596/62c7b8ffbc47432787cdbf69180e6994/FLAG11ee83f7f [2019-09-09 13:45:24,084 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 13:45:24,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem09_label40.c [2019-09-09 13:45:24,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3faa48596/62c7b8ffbc47432787cdbf69180e6994/FLAG11ee83f7f [2019-09-09 13:45:24,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3faa48596/62c7b8ffbc47432787cdbf69180e6994 [2019-09-09 13:45:24,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 13:45:24,449 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 13:45:24,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 13:45:24,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 13:45:24,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 13:45:24,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 01:45:24" (1/1) ... [2019-09-09 13:45:24,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f4d1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:45:24, skipping insertion in model container [2019-09-09 13:45:24,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 01:45:24" (1/1) ... [2019-09-09 13:45:24,466 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 13:45:26,449 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 13:45:57,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 13:45:57,956 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 13:46:17,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 13:46:28,732 INFO L192 MainTranslator]: Completed translation [2019-09-09 13:46:28,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:46:28 WrapperNode [2019-09-09 13:46:28,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 13:46:28,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 13:46:28,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 13:46:28,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 13:46:28,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:46:28" (1/1) ... [2019-09-09 13:46:28,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:46:28" (1/1) ... [2019-09-09 13:46:29,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:46:28" (1/1) ... [2019-09-09 13:46:29,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:46:28" (1/1) ... [2019-09-09 13:46:37,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:46:28" (1/1) ... [2019-09-09 13:46:37,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:46:28" (1/1) ... [2019-09-09 13:46:38,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:46:28" (1/1) ... [2019-09-09 13:46:40,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 13:46:40,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 13:46:40,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 13:46:40,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 13:46:40,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:46:28" (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 [2019-09-09 13:46:40,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 13:46:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 13:46:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-09 13:46:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-09 13:46:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-09 13:46:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-09 13:46:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2019-09-09 13:46:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2019-09-09 13:46:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2019-09-09 13:46:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2019-09-09 13:46:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2019-09-09 13:46:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2019-09-09 13:46:40,083 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2019-09-09 13:46:40,083 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2019-09-09 13:46:40,084 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2019-09-09 13:46:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2019-09-09 13:46:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2019-09-09 13:46:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2019-09-09 13:46:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2019-09-09 13:46:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2019-09-09 13:46:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2019-09-09 13:46:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2019-09-09 13:46:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2019-09-09 13:46:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2019-09-09 13:46:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2019-09-09 13:46:40,087 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2019-09-09 13:46:40,087 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2019-09-09 13:46:40,087 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2019-09-09 13:46:40,087 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2019-09-09 13:46:40,087 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2019-09-09 13:46:40,088 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2019-09-09 13:46:40,088 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2019-09-09 13:46:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2019-09-09 13:46:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2019-09-09 13:46:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2019-09-09 13:46:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2019-09-09 13:46:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2019-09-09 13:46:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2019-09-09 13:46:40,090 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2019-09-09 13:46:40,090 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2019-09-09 13:46:40,090 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2019-09-09 13:46:40,090 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2019-09-09 13:46:40,090 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2019-09-09 13:46:40,091 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2019-09-09 13:46:40,091 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2019-09-09 13:46:40,091 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2019-09-09 13:46:40,091 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2019-09-09 13:46:40,091 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2019-09-09 13:46:40,091 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output47 [2019-09-09 13:46:40,091 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output48 [2019-09-09 13:46:40,092 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output49 [2019-09-09 13:46:40,092 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output50 [2019-09-09 13:46:40,092 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output51 [2019-09-09 13:46:40,092 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output52 [2019-09-09 13:46:40,092 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output53 [2019-09-09 13:46:40,092 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output54 [2019-09-09 13:46:40,092 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output55 [2019-09-09 13:46:40,093 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output56 [2019-09-09 13:46:40,093 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output57 [2019-09-09 13:46:40,093 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output58 [2019-09-09 13:46:40,093 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output59 [2019-09-09 13:46:40,093 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output60 [2019-09-09 13:46:40,093 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output61 [2019-09-09 13:46:40,093 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output62 [2019-09-09 13:46:40,094 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output63 [2019-09-09 13:46:40,094 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output64 [2019-09-09 13:46:40,094 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output65 [2019-09-09 13:46:40,094 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output66 [2019-09-09 13:46:40,095 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output67 [2019-09-09 13:46:40,095 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output68 [2019-09-09 13:46:40,095 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output69 [2019-09-09 13:46:40,095 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output70 [2019-09-09 13:46:40,095 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output71 [2019-09-09 13:46:40,096 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output72 [2019-09-09 13:46:40,096 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output73 [2019-09-09 13:46:40,096 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output74 [2019-09-09 13:46:40,096 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output75 [2019-09-09 13:46:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 13:46:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-09 13:46:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-09 13:46:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-09 13:46:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-09 13:46:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2019-09-09 13:46:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2019-09-09 13:46:40,098 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2019-09-09 13:46:40,098 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2019-09-09 13:46:40,099 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2019-09-09 13:46:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2019-09-09 13:46:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2019-09-09 13:46:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2019-09-09 13:46:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2019-09-09 13:46:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2019-09-09 13:46:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2019-09-09 13:46:40,101 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2019-09-09 13:46:40,101 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2019-09-09 13:46:40,101 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2019-09-09 13:46:40,101 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2019-09-09 13:46:40,101 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2019-09-09 13:46:40,101 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2019-09-09 13:46:40,102 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2019-09-09 13:46:40,102 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2019-09-09 13:46:40,102 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2019-09-09 13:46:40,102 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2019-09-09 13:46:40,102 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2019-09-09 13:46:40,102 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2019-09-09 13:46:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2019-09-09 13:46:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2019-09-09 13:46:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2019-09-09 13:46:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2019-09-09 13:46:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2019-09-09 13:46:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2019-09-09 13:46:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2019-09-09 13:46:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2019-09-09 13:46:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2019-09-09 13:46:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2019-09-09 13:46:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2019-09-09 13:46:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2019-09-09 13:46:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2019-09-09 13:46:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2019-09-09 13:46:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2019-09-09 13:46:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2019-09-09 13:46:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2019-09-09 13:46:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2019-09-09 13:46:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2019-09-09 13:46:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output47 [2019-09-09 13:46:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output48 [2019-09-09 13:46:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output49 [2019-09-09 13:46:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output50 [2019-09-09 13:46:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output51 [2019-09-09 13:46:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output52 [2019-09-09 13:46:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output53 [2019-09-09 13:46:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output54 [2019-09-09 13:46:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output55 [2019-09-09 13:46:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output56 [2019-09-09 13:46:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output57 [2019-09-09 13:46:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output58 [2019-09-09 13:46:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output59 [2019-09-09 13:46:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output60 [2019-09-09 13:46:40,111 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output61 [2019-09-09 13:46:40,114 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output62 [2019-09-09 13:46:40,115 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output63 [2019-09-09 13:46:40,115 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output64 [2019-09-09 13:46:40,115 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output65 [2019-09-09 13:46:40,121 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output66 [2019-09-09 13:46:40,121 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output67 [2019-09-09 13:46:40,121 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output68 [2019-09-09 13:46:40,121 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output69 [2019-09-09 13:46:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output70 [2019-09-09 13:46:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output71 [2019-09-09 13:46:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output72 [2019-09-09 13:46:40,123 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output73 [2019-09-09 13:46:40,123 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output74 [2019-09-09 13:46:40,123 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output75 [2019-09-09 13:46:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 13:46:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-09 13:46:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-09 13:46:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 13:46:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 13:46:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 13:48:15,147 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 13:48:15,148 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-09 13:48:15,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 01:48:15 BoogieIcfgContainer [2019-09-09 13:48:15,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 13:48:15,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 13:48:15,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 13:48:15,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 13:48:15,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 01:45:24" (1/3) ... [2019-09-09 13:48:15,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1572d98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 01:48:15, skipping insertion in model container [2019-09-09 13:48:15,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 01:46:28" (2/3) ... [2019-09-09 13:48:15,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1572d98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 01:48:15, skipping insertion in model container [2019-09-09 13:48:15,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 01:48:15" (3/3) ... [2019-09-09 13:48:15,167 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem09_label40.c [2019-09-09 13:48:15,177 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 13:48:15,192 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 13:48:15,209 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 13:48:15,229 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 13:48:15,230 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 13:48:15,230 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 13:48:15,230 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 13:48:15,230 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 13:48:15,230 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 13:48:15,230 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 13:48:15,230 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 13:48:15,461 INFO L276 IsEmpty]: Start isEmpty. Operand 20661 states. [2019-09-09 13:48:18,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16656 [2019-09-09 13:48:18,678 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 13:48:18,691 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 13:48:18,696 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_output75Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 13:48:18,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 13:48:18,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1293999099, now seen corresponding path program 1 times [2019-09-09 13:48:18,717 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 13:48:18,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 13:48:18,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 13:48:18,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 13:48:18,776 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 13:48:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 13:52:33,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 13:52:33,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 13:52:33,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 13:52:33,208 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 13:52:33,238 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 13:52:33,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 13:52:33,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 13:52:33,258 INFO L87 Difference]: Start difference. First operand 20661 states. Second operand 3 states. [2019-09-09 13:54:23,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 13:54:23,258 INFO L93 Difference]: Finished difference Result 38834 states and 69576 transitions. [2019-09-09 13:54:23,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 13:54:23,260 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16655 [2019-09-09 13:54:23,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 13:54:23,568 INFO L225 Difference]: With dead ends: 38834 [2019-09-09 13:54:23,568 INFO L226 Difference]: Without dead ends: 38766 [2019-09-09 13:54:23,572 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 76 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 13:54:23,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38766 states. [2019-09-09 13:54:24,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38766 to 38506. [2019-09-09 13:54:24,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38506 states. [2019-09-09 13:54:24,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38506 states to 38506 states and 68942 transitions. [2019-09-09 13:54:24,613 INFO L78 Accepts]: Start accepts. Automaton has 38506 states and 68942 transitions. Word has length 16655 [2019-09-09 13:54:24,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 13:54:24,648 INFO L475 AbstractCegarLoop]: Abstraction has 38506 states and 68942 transitions. [2019-09-09 13:54:24,648 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 13:54:24,648 INFO L276 IsEmpty]: Start isEmpty. Operand 38506 states and 68942 transitions. [2019-09-09 13:54:26,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16669 [2019-09-09 13:54:26,783 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 13:54:26,793 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 13:54:26,794 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_output75Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 13:54:26,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 13:54:26,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1251750693, now seen corresponding path program 1 times [2019-09-09 13:54:26,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 13:54:26,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 13:54:26,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 13:54:26,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 13:54:26,810 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 13:54:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 13:56:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 13:56:21,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 13:56:21,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-09 13:56:21,995 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 13:56:22,027 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-09 13:56:22,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-09 13:56:22,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-09 13:56:22,029 INFO L87 Difference]: Start difference. First operand 38506 states and 68942 transitions. Second operand 6 states.