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-programs/Problem102_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:03:01,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:03:01,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:03:01,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:03:01,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:03:01,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:03:01,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:03:01,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:03:01,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:03:01,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:03:01,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:03:01,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:03:01,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:03:01,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:03:01,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:03:01,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:03:01,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:03:01,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:03:01,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:03:01,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:03:01,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:03:01,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:03:01,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:03:01,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:03:01,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:03:01,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:03:01,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:03:01,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:03:01,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:03:01,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:03:01,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:03:01,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:03:01,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:03:01,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:03:01,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:03:01,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:03:01,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:03:01,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:03:01,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:03:01,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:03:01,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:03:01,866 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 [2019-09-10 01:03:01,881 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:03:01,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:03:01,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:03:01,882 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:03:01,882 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:03:01,882 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:03:01,883 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:03:01,883 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:03:01,883 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:03:01,883 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:03:01,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:03:01,884 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:03:01,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:03:01,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:03:01,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:03:01,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:03:01,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:03:01,885 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:03:01,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:03:01,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:03:01,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:03:01,886 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:03:01,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:03:01,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:03:01,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:03:01,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:03:01,887 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:03:01,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:03:01,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:03:01,887 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:03:01,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:03:01,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:03:01,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:03:01,944 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:03:01,945 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:03:01,945 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem102_label53.c [2019-09-10 01:03:02,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ec8e5027/094ec082d6d048df8abcf6641edd5b6f/FLAG0c4d47b27 [2019-09-10 01:03:05,864 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:03:05,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem102_label53.c [2019-09-10 01:03:06,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ec8e5027/094ec082d6d048df8abcf6641edd5b6f/FLAG0c4d47b27 [2019-09-10 01:03:06,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ec8e5027/094ec082d6d048df8abcf6641edd5b6f [2019-09-10 01:03:06,520 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:03:06,521 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:03:06,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:03:06,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:03:06,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:03:06,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:03:06" (1/1) ... [2019-09-10 01:03:06,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c6806c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:03:06, skipping insertion in model container [2019-09-10 01:03:06,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:03:06" (1/1) ... [2019-09-10 01:03:06,537 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:03:08,268 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:03:32,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:03:32,799 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:03:53,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:04:06,407 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:04:06,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:04:06 WrapperNode [2019-09-10 01:04:06,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:04:06,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:04:06,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:04:06,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:04:06,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:04:06" (1/1) ... [2019-09-10 01:04:06,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:04:06" (1/1) ... [2019-09-10 01:04:08,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:04:06" (1/1) ... [2019-09-10 01:04:08,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:04:06" (1/1) ... [2019-09-10 01:04:11,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:04:06" (1/1) ... [2019-09-10 01:04:12,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:04:06" (1/1) ... [2019-09-10 01:04:13,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:04:06" (1/1) ... [2019-09-10 01:04:14,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:04:14,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:04:14,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:04:14,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:04:14,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:04:06" (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 [2019-09-10 01:04:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:04:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:04:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-10 01:04:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-10 01:04:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-10 01:04:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-10 01:04:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2019-09-10 01:04:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2019-09-10 01:04:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2019-09-10 01:04:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2019-09-10 01:04:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2019-09-10 01:04:14,347 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2019-09-10 01:04:14,347 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2019-09-10 01:04:14,347 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2019-09-10 01:04:14,347 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2019-09-10 01:04:14,347 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2019-09-10 01:04:14,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2019-09-10 01:04:14,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2019-09-10 01:04:14,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2019-09-10 01:04:14,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2019-09-10 01:04:14,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2019-09-10 01:04:14,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2019-09-10 01:04:14,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2019-09-10 01:04:14,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2019-09-10 01:04:14,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2019-09-10 01:04:14,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2019-09-10 01:04:14,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2019-09-10 01:04:14,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2019-09-10 01:04:14,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2019-09-10 01:04:14,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2019-09-10 01:04:14,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2019-09-10 01:04:14,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2019-09-10 01:04:14,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2019-09-10 01:04:14,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2019-09-10 01:04:14,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2019-09-10 01:04:14,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2019-09-10 01:04:14,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2019-09-10 01:04:14,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2019-09-10 01:04:14,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2019-09-10 01:04:14,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2019-09-10 01:04:14,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2019-09-10 01:04:14,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2019-09-10 01:04:14,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2019-09-10 01:04:14,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2019-09-10 01:04:14,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2019-09-10 01:04:14,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2019-09-10 01:04:14,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2019-09-10 01:04:14,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2019-09-10 01:04:14,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output47 [2019-09-10 01:04:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output48 [2019-09-10 01:04:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output49 [2019-09-10 01:04:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output50 [2019-09-10 01:04:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output51 [2019-09-10 01:04:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output52 [2019-09-10 01:04:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output53 [2019-09-10 01:04:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output54 [2019-09-10 01:04:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output55 [2019-09-10 01:04:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output56 [2019-09-10 01:04:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output57 [2019-09-10 01:04:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output58 [2019-09-10 01:04:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output59 [2019-09-10 01:04:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output60 [2019-09-10 01:04:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output61 [2019-09-10 01:04:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output62 [2019-09-10 01:04:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output63 [2019-09-10 01:04:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output64 [2019-09-10 01:04:14,354 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output65 [2019-09-10 01:04:14,354 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output66 [2019-09-10 01:04:14,354 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output67 [2019-09-10 01:04:14,354 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output68 [2019-09-10 01:04:14,354 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output69 [2019-09-10 01:04:14,354 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output70 [2019-09-10 01:04:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output71 [2019-09-10 01:04:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output72 [2019-09-10 01:04:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output73 [2019-09-10 01:04:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output74 [2019-09-10 01:04:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output75 [2019-09-10 01:04:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output76 [2019-09-10 01:04:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output77 [2019-09-10 01:04:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output78 [2019-09-10 01:04:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output79 [2019-09-10 01:04:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output80 [2019-09-10 01:04:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output81 [2019-09-10 01:04:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output82 [2019-09-10 01:04:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:04:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-10 01:04:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-10 01:04:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-10 01:04:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-10 01:04:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2019-09-10 01:04:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2019-09-10 01:04:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2019-09-10 01:04:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2019-09-10 01:04:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2019-09-10 01:04:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2019-09-10 01:04:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2019-09-10 01:04:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2019-09-10 01:04:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2019-09-10 01:04:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2019-09-10 01:04:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2019-09-10 01:04:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2019-09-10 01:04:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2019-09-10 01:04:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2019-09-10 01:04:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2019-09-10 01:04:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2019-09-10 01:04:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2019-09-10 01:04:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2019-09-10 01:04:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2019-09-10 01:04:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2019-09-10 01:04:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2019-09-10 01:04:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2019-09-10 01:04:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2019-09-10 01:04:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2019-09-10 01:04:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2019-09-10 01:04:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2019-09-10 01:04:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2019-09-10 01:04:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2019-09-10 01:04:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2019-09-10 01:04:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2019-09-10 01:04:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2019-09-10 01:04:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2019-09-10 01:04:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2019-09-10 01:04:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2019-09-10 01:04:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2019-09-10 01:04:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2019-09-10 01:04:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2019-09-10 01:04:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2019-09-10 01:04:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2019-09-10 01:04:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2019-09-10 01:04:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2019-09-10 01:04:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2019-09-10 01:04:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output47 [2019-09-10 01:04:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output48 [2019-09-10 01:04:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output49 [2019-09-10 01:04:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output50 [2019-09-10 01:04:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output51 [2019-09-10 01:04:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output52 [2019-09-10 01:04:14,365 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output53 [2019-09-10 01:04:14,365 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output54 [2019-09-10 01:04:14,366 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output55 [2019-09-10 01:04:14,366 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output56 [2019-09-10 01:04:14,366 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output57 [2019-09-10 01:04:14,367 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output58 [2019-09-10 01:04:14,367 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output59 [2019-09-10 01:04:14,367 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output60 [2019-09-10 01:04:14,367 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output61 [2019-09-10 01:04:14,367 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output62 [2019-09-10 01:04:14,367 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output63 [2019-09-10 01:04:14,367 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output64 [2019-09-10 01:04:14,368 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output65 [2019-09-10 01:04:14,368 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output66 [2019-09-10 01:04:14,368 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output67 [2019-09-10 01:04:14,368 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output68 [2019-09-10 01:04:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output69 [2019-09-10 01:04:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output70 [2019-09-10 01:04:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output71 [2019-09-10 01:04:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output72 [2019-09-10 01:04:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output73 [2019-09-10 01:04:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output74 [2019-09-10 01:04:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output75 [2019-09-10 01:04:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output76 [2019-09-10 01:04:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output77 [2019-09-10 01:04:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output78 [2019-09-10 01:04:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output79 [2019-09-10 01:04:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output80 [2019-09-10 01:04:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output81 [2019-09-10 01:04:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output82 [2019-09-10 01:04:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:04:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:04:14,372 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:04:14,372 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:04:14,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:04:14,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:05:47,866 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:05:47,866 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-10 01:05:47,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:05:47 BoogieIcfgContainer [2019-09-10 01:05:47,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:05:47,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:05:47,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:05:47,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:05:47,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:03:06" (1/3) ... [2019-09-10 01:05:47,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599330c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:05:47, skipping insertion in model container [2019-09-10 01:05:47,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:04:06" (2/3) ... [2019-09-10 01:05:47,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599330c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:05:47, skipping insertion in model container [2019-09-10 01:05:47,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:05:47" (3/3) ... [2019-09-10 01:05:47,886 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem102_label53.c [2019-09-10 01:05:47,895 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:05:47,909 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:05:47,926 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:05:47,951 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:05:47,952 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:05:47,952 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:05:47,952 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:05:47,952 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:05:47,952 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:05:47,952 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:05:47,952 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:05:48,194 INFO L276 IsEmpty]: Start isEmpty. Operand 23548 states. [2019-09-10 01:05:51,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18065 [2019-09-10 01:05:51,535 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:05:51,547 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] [2019-09-10 01:05:51,552 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_output82Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:05:51,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:05:51,571 INFO L82 PathProgramCache]: Analyzing trace with hash 268760277, now seen corresponding path program 1 times [2019-09-10 01:05:51,574 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:05:51,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:05:51,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:05:51,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:05:51,627 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:05:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:10:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:10:39,721 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:10:39,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:10:39,723 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:10:39,756 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:10:39,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:10:39,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:10:39,776 INFO L87 Difference]: Start difference. First operand 23548 states. Second operand 4 states. [2019-09-10 01:13:23,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:13:23,776 INFO L93 Difference]: Finished difference Result 63759 states and 119452 transitions. [2019-09-10 01:13:23,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:13:23,779 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18064 [2019-09-10 01:13:23,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:13:24,271 INFO L225 Difference]: With dead ends: 63759 [2019-09-10 01:13:24,272 INFO L226 Difference]: Without dead ends: 63687 [2019-09-10 01:13:24,274 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:13:24,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63687 states. [2019-09-10 01:13:26,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63687 to 42999. [2019-09-10 01:13:26,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42999 states. [2019-09-10 01:13:26,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42999 states to 42999 states and 79991 transitions. [2019-09-10 01:13:26,335 INFO L78 Accepts]: Start accepts. Automaton has 42999 states and 79991 transitions. Word has length 18064 [2019-09-10 01:13:26,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:13:26,397 INFO L475 AbstractCegarLoop]: Abstraction has 42999 states and 79991 transitions. [2019-09-10 01:13:26,397 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:13:26,397 INFO L276 IsEmpty]: Start isEmpty. Operand 42999 states and 79991 transitions. [2019-09-10 01:13:30,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18074 [2019-09-10 01:13:30,036 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:13:30,050 INFO L399 BasicCegarLoop]: trace histogram [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, 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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] [2019-09-10 01:13:30,052 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_output82Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:13:30,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:13:30,066 INFO L82 PathProgramCache]: Analyzing trace with hash -2147134379, now seen corresponding path program 1 times [2019-09-10 01:13:30,067 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:13:30,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:13:30,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:13:30,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:13:30,076 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:13:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:15:34,914 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:15:34,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:15:34,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 01:15:34,916 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:15:34,947 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 01:15:34,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 01:15:34,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-10 01:15:34,949 INFO L87 Difference]: Start difference. First operand 42999 states and 79991 transitions. Second operand 6 states.