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/product-lines/minepump_spec2_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:57:38,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:57:38,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:57:38,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:57:38,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:57:38,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:57:38,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:57:38,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:57:38,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:57:38,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:57:38,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:57:38,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:57:38,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:57:38,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:57:38,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:57:38,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:57:38,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:57:38,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:57:38,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:57:38,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:57:38,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:57:38,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:57:38,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:57:38,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:57:38,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:57:38,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:57:38,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:57:38,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:57:38,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:57:38,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:57:38,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:57:38,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:57:38,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:57:38,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:57:38,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:57:38,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:57:38,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:57:38,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:57:38,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:57:38,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:57:38,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:57:38,913 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 [2019-10-03 02:57:38,928 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:57:38,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:57:38,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:57:38,929 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:57:38,930 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:57:38,930 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:57:38,930 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:57:38,930 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:57:38,931 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:57:38,931 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:57:38,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:57:38,932 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:57:38,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:57:38,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:57:38,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:57:38,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:57:38,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:57:38,934 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:57:38,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:57:38,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:57:38,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:57:38,935 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:57:38,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:57:38,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:57:38,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:57:38,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:57:38,936 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:57:38,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:57:38,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:57:38,937 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:57:38,995 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:57:39,006 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:57:39,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:57:39,011 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:57:39,012 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:57:39,013 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-10-03 02:57:39,079 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d778ddd5e/194ce8db8a434c769a17b1be2fb7f90f/FLAGea882f62b [2019-10-03 02:57:39,665 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:57:39,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-10-03 02:57:39,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d778ddd5e/194ce8db8a434c769a17b1be2fb7f90f/FLAGea882f62b [2019-10-03 02:57:39,891 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d778ddd5e/194ce8db8a434c769a17b1be2fb7f90f [2019-10-03 02:57:39,901 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:57:39,903 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:57:39,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:39,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:57:39,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:57:39,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:39" (1/1) ... [2019-10-03 02:57:39,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15fb5a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:39, skipping insertion in model container [2019-10-03 02:57:39,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:39" (1/1) ... [2019-10-03 02:57:39,923 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:57:39,968 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:57:40,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:40,493 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:57:40,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:40,691 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:57:40,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:40 WrapperNode [2019-10-03 02:57:40,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:40,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:57:40,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:57:40,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:57:40,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:40" (1/1) ... [2019-10-03 02:57:40,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:40" (1/1) ... [2019-10-03 02:57:40,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:40" (1/1) ... [2019-10-03 02:57:40,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:40" (1/1) ... [2019-10-03 02:57:40,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:40" (1/1) ... [2019-10-03 02:57:40,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:40" (1/1) ... [2019-10-03 02:57:40,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:40" (1/1) ... [2019-10-03 02:57:40,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:57:40,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:57:40,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:57:40,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:57:40,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:40" (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 [2019-10-03 02:57:40,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:57:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:57:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:57:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:57:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:57:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:57:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:57:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:57:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:57:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:57:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:57:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:57:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:57:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:57:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:57:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:57:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:57:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:57:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:57:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:57:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:57:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:57:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:57:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:57:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:57:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:57:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:57:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:57:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:57:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:57:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:57:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:57:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:57:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:57:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:57:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:57:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:57:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:57:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:57:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:57:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:57:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:57:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:57:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:57:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:57:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:57:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:57:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:57:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:57:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:57:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:57:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:57:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:57:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:57:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:57:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:57:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:57:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:57:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:57:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:57:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:57:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:57:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:57:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:57:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:57:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:57:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:57:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:57:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:57:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:57:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:57:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:57:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:57:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:57:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:57:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:57:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:57:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:57:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:57:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:57:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:57:40,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:57:40,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:57:40,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:57:40,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:57:40,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:57:42,124 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:57:42,124 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:57:42,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:42 BoogieIcfgContainer [2019-10-03 02:57:42,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:57:42,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:57:42,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:57:42,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:57:42,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:57:39" (1/3) ... [2019-10-03 02:57:42,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384c6259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:42, skipping insertion in model container [2019-10-03 02:57:42,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:40" (2/3) ... [2019-10-03 02:57:42,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384c6259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:42, skipping insertion in model container [2019-10-03 02:57:42,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:42" (3/3) ... [2019-10-03 02:57:42,138 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2019-10-03 02:57:42,149 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:57:42,161 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:57:42,180 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:57:42,210 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:57:42,211 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:57:42,211 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:57:42,211 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:57:42,211 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:57:42,211 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:57:42,211 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:57:42,211 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:57:42,229 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-10-03 02:57:42,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:57:42,244 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:42,245 INFO L411 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] [2019-10-03 02:57:42,247 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:42,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:42,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1742083297, now seen corresponding path program 1 times [2019-10-03 02:57:42,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:42,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:42,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:42,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:42,314 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:42,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:42,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:57:42,675 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:42,682 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:42,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:42,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:42,698 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 2 states. [2019-10-03 02:57:42,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:42,726 INFO L93 Difference]: Finished difference Result 148 states and 172 transitions. [2019-10-03 02:57:42,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:42,727 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-10-03 02:57:42,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:42,739 INFO L225 Difference]: With dead ends: 148 [2019-10-03 02:57:42,739 INFO L226 Difference]: Without dead ends: 137 [2019-10-03 02:57:42,741 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:42,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-10-03 02:57:42,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-10-03 02:57:42,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-10-03 02:57:42,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2019-10-03 02:57:42,793 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 51 [2019-10-03 02:57:42,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:42,793 INFO L475 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2019-10-03 02:57:42,793 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:42,793 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2019-10-03 02:57:42,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:57:42,797 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:42,797 INFO L411 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] [2019-10-03 02:57:42,797 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:42,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:42,798 INFO L82 PathProgramCache]: Analyzing trace with hash 604742129, now seen corresponding path program 1 times [2019-10-03 02:57:42,798 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:42,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:42,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:42,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:42,801 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:42,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:42,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:42,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:57:42,942 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:42,944 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:57:42,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:57:42,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:42,945 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand 3 states. [2019-10-03 02:57:42,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:42,961 INFO L93 Difference]: Finished difference Result 128 states and 148 transitions. [2019-10-03 02:57:42,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:57:42,962 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-03 02:57:42,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:42,964 INFO L225 Difference]: With dead ends: 128 [2019-10-03 02:57:42,964 INFO L226 Difference]: Without dead ends: 128 [2019-10-03 02:57:42,965 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:42,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-10-03 02:57:42,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-10-03 02:57:42,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-03 02:57:42,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2019-10-03 02:57:42,983 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 52 [2019-10-03 02:57:42,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:42,983 INFO L475 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2019-10-03 02:57:42,983 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:57:42,983 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2019-10-03 02:57:42,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-03 02:57:42,987 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:42,990 INFO L411 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] [2019-10-03 02:57:42,991 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:42,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:42,991 INFO L82 PathProgramCache]: Analyzing trace with hash -185652476, now seen corresponding path program 1 times [2019-10-03 02:57:42,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:42,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:42,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:42,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:42,995 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:43,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:43,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:43,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:43,222 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:43,223 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:43,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:43,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:43,224 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 7 states. [2019-10-03 02:57:43,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:43,620 INFO L93 Difference]: Finished difference Result 128 states and 147 transitions. [2019-10-03 02:57:43,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:57:43,621 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-10-03 02:57:43,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:43,624 INFO L225 Difference]: With dead ends: 128 [2019-10-03 02:57:43,624 INFO L226 Difference]: Without dead ends: 128 [2019-10-03 02:57:43,625 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:57:43,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-10-03 02:57:43,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-10-03 02:57:43,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-03 02:57:43,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2019-10-03 02:57:43,640 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 57 [2019-10-03 02:57:43,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:43,640 INFO L475 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2019-10-03 02:57:43,641 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:43,641 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2019-10-03 02:57:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-03 02:57:43,644 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:43,644 INFO L411 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] [2019-10-03 02:57:43,644 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:43,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:43,645 INFO L82 PathProgramCache]: Analyzing trace with hash -285076691, now seen corresponding path program 1 times [2019-10-03 02:57:43,645 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:43,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:43,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:43,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:43,650 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:43,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:43,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:43,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:57:43,777 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:43,778 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:57:43,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:57:43,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:57:43,779 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand 5 states. [2019-10-03 02:57:44,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:44,326 INFO L93 Difference]: Finished difference Result 229 states and 266 transitions. [2019-10-03 02:57:44,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:57:44,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-10-03 02:57:44,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:44,329 INFO L225 Difference]: With dead ends: 229 [2019-10-03 02:57:44,330 INFO L226 Difference]: Without dead ends: 229 [2019-10-03 02:57:44,330 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:57:44,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-10-03 02:57:44,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 210. [2019-10-03 02:57:44,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2019-10-03 02:57:44,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 240 transitions. [2019-10-03 02:57:44,352 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 240 transitions. Word has length 70 [2019-10-03 02:57:44,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:44,353 INFO L475 AbstractCegarLoop]: Abstraction has 210 states and 240 transitions. [2019-10-03 02:57:44,353 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:57:44,353 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 240 transitions. [2019-10-03 02:57:44,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-03 02:57:44,355 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:44,356 INFO L411 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] [2019-10-03 02:57:44,356 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:44,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:44,356 INFO L82 PathProgramCache]: Analyzing trace with hash -791027315, now seen corresponding path program 1 times [2019-10-03 02:57:44,357 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:44,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:44,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:44,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:44,360 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:44,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:44,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:44,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:44,465 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:44,465 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:44,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:44,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:44,466 INFO L87 Difference]: Start difference. First operand 210 states and 240 transitions. Second operand 6 states. [2019-10-03 02:57:44,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:44,662 INFO L93 Difference]: Finished difference Result 374 states and 427 transitions. [2019-10-03 02:57:44,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:44,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-10-03 02:57:44,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:44,668 INFO L225 Difference]: With dead ends: 374 [2019-10-03 02:57:44,668 INFO L226 Difference]: Without dead ends: 374 [2019-10-03 02:57:44,669 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:57:44,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2019-10-03 02:57:44,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 368. [2019-10-03 02:57:44,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2019-10-03 02:57:44,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 420 transitions. [2019-10-03 02:57:44,701 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 420 transitions. Word has length 84 [2019-10-03 02:57:44,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:44,701 INFO L475 AbstractCegarLoop]: Abstraction has 368 states and 420 transitions. [2019-10-03 02:57:44,701 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:44,702 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 420 transitions. [2019-10-03 02:57:44,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-03 02:57:44,707 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:44,707 INFO L411 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] [2019-10-03 02:57:44,708 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:44,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:44,709 INFO L82 PathProgramCache]: Analyzing trace with hash 474237417, now seen corresponding path program 1 times [2019-10-03 02:57:44,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:44,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:44,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:44,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:44,714 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:44,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:44,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:44,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:44,890 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:44,890 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:44,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:44,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:44,910 INFO L87 Difference]: Start difference. First operand 368 states and 420 transitions. Second operand 7 states. [2019-10-03 02:57:45,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:45,546 INFO L93 Difference]: Finished difference Result 399 states and 469 transitions. [2019-10-03 02:57:45,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:57:45,547 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2019-10-03 02:57:45,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:45,550 INFO L225 Difference]: With dead ends: 399 [2019-10-03 02:57:45,550 INFO L226 Difference]: Without dead ends: 399 [2019-10-03 02:57:45,551 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:57:45,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-03 02:57:45,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 367. [2019-10-03 02:57:45,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2019-10-03 02:57:45,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 417 transitions. [2019-10-03 02:57:45,571 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 417 transitions. Word has length 88 [2019-10-03 02:57:45,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:45,571 INFO L475 AbstractCegarLoop]: Abstraction has 367 states and 417 transitions. [2019-10-03 02:57:45,572 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:45,572 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 417 transitions. [2019-10-03 02:57:45,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-03 02:57:45,574 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:45,574 INFO L411 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] [2019-10-03 02:57:45,574 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:45,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:45,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1710786942, now seen corresponding path program 1 times [2019-10-03 02:57:45,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:45,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:45,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:45,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:45,578 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:45,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:45,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:45,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:45,654 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:45,655 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:45,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:45,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:45,656 INFO L87 Difference]: Start difference. First operand 367 states and 417 transitions. Second operand 6 states. [2019-10-03 02:57:45,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:45,695 INFO L93 Difference]: Finished difference Result 377 states and 427 transitions. [2019-10-03 02:57:45,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:57:45,695 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-10-03 02:57:45,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:45,698 INFO L225 Difference]: With dead ends: 377 [2019-10-03 02:57:45,698 INFO L226 Difference]: Without dead ends: 377 [2019-10-03 02:57:45,699 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:45,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-03 02:57:45,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2019-10-03 02:57:45,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-10-03 02:57:45,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 427 transitions. [2019-10-03 02:57:45,719 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 427 transitions. Word has length 89 [2019-10-03 02:57:45,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:45,720 INFO L475 AbstractCegarLoop]: Abstraction has 377 states and 427 transitions. [2019-10-03 02:57:45,720 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:45,720 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 427 transitions. [2019-10-03 02:57:45,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-03 02:57:45,721 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:45,722 INFO L411 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] [2019-10-03 02:57:45,722 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:45,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:45,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1009187068, now seen corresponding path program 1 times [2019-10-03 02:57:45,723 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:45,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:45,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:45,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:45,725 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:45,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:45,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:45,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:57:45,844 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:45,844 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:57:45,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:57:45,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:57:45,845 INFO L87 Difference]: Start difference. First operand 377 states and 427 transitions. Second operand 8 states. [2019-10-03 02:57:45,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:45,879 INFO L93 Difference]: Finished difference Result 391 states and 441 transitions. [2019-10-03 02:57:45,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:45,880 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2019-10-03 02:57:45,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:45,883 INFO L225 Difference]: With dead ends: 391 [2019-10-03 02:57:45,883 INFO L226 Difference]: Without dead ends: 391 [2019-10-03 02:57:45,884 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:57:45,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-10-03 02:57:45,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 385. [2019-10-03 02:57:45,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2019-10-03 02:57:45,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 435 transitions. [2019-10-03 02:57:45,921 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 435 transitions. Word has length 89 [2019-10-03 02:57:45,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:45,921 INFO L475 AbstractCegarLoop]: Abstraction has 385 states and 435 transitions. [2019-10-03 02:57:45,921 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:57:45,921 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 435 transitions. [2019-10-03 02:57:45,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-03 02:57:45,923 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:45,923 INFO L411 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] [2019-10-03 02:57:45,924 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:45,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:45,924 INFO L82 PathProgramCache]: Analyzing trace with hash 716293829, now seen corresponding path program 1 times [2019-10-03 02:57:45,924 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:45,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:45,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:45,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:45,927 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:45,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:45,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:45,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:57:45,997 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:45,997 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:57:45,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:57:45,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:57:45,998 INFO L87 Difference]: Start difference. First operand 385 states and 435 transitions. Second operand 4 states. [2019-10-03 02:57:46,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:46,209 INFO L93 Difference]: Finished difference Result 805 states and 951 transitions. [2019-10-03 02:57:46,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:57:46,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2019-10-03 02:57:46,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:46,217 INFO L225 Difference]: With dead ends: 805 [2019-10-03 02:57:46,218 INFO L226 Difference]: Without dead ends: 805 [2019-10-03 02:57:46,218 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:57:46,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2019-10-03 02:57:46,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 517. [2019-10-03 02:57:46,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2019-10-03 02:57:46,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 580 transitions. [2019-10-03 02:57:46,243 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 580 transitions. Word has length 89 [2019-10-03 02:57:46,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:46,243 INFO L475 AbstractCegarLoop]: Abstraction has 517 states and 580 transitions. [2019-10-03 02:57:46,244 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:57:46,244 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 580 transitions. [2019-10-03 02:57:46,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-03 02:57:46,246 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:46,246 INFO L411 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] [2019-10-03 02:57:46,246 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:46,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:46,246 INFO L82 PathProgramCache]: Analyzing trace with hash -7624597, now seen corresponding path program 1 times [2019-10-03 02:57:46,247 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:46,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:46,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:46,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:46,249 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:46,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:46,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:46,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:57:46,300 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:46,300 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:57:46,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:57:46,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:46,301 INFO L87 Difference]: Start difference. First operand 517 states and 580 transitions. Second operand 3 states. [2019-10-03 02:57:46,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:46,331 INFO L93 Difference]: Finished difference Result 793 states and 904 transitions. [2019-10-03 02:57:46,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:57:46,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2019-10-03 02:57:46,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:46,337 INFO L225 Difference]: With dead ends: 793 [2019-10-03 02:57:46,337 INFO L226 Difference]: Without dead ends: 793 [2019-10-03 02:57:46,337 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:46,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2019-10-03 02:57:46,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 662. [2019-10-03 02:57:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2019-10-03 02:57:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 753 transitions. [2019-10-03 02:57:46,361 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 753 transitions. Word has length 93 [2019-10-03 02:57:46,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:46,361 INFO L475 AbstractCegarLoop]: Abstraction has 662 states and 753 transitions. [2019-10-03 02:57:46,361 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:57:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 753 transitions. [2019-10-03 02:57:46,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-03 02:57:46,365 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:46,365 INFO L411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:46,365 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:46,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:46,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1116069495, now seen corresponding path program 1 times [2019-10-03 02:57:46,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:46,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:46,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:46,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:46,368 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:46,474 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-03 02:57:46,474 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:57:46,474 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:57:46,475 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2019-10-03 02:57:46,478 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [159], [161], [164], [167], [169], [175], [178], [190], [192], [195], [197], [200], [203], [206], [214], [215], [216], [226], [227], [230], [232], [237], [239], [240], [246], [250], [256], [283], [284], [294], [297], [299], [302], [312], [315], [319], [320], [323], [324], [325], [419], [420], [425], [427], [430], [438], [439], [440], [441], [442], [443], [444], [445], [446], [486], [487], [488], [489], [490], [491], [494], [495], [498], [499], [500], [501], [502], [504], [505], [508], [509], [510], [511], [516], [517], [518], [519], [526], [527], [528], [536], [537], [538] [2019-10-03 02:57:46,528 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:57:46,528 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:57:46,633 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:57:46,636 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 71 root evaluator evaluations with a maximum evaluation depth of 0. Performed 71 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-03 02:57:46,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:46,642 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:57:46,750 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:57:46,751 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:57:46,756 INFO L420 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2019-10-03 02:57:46,756 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:57:46,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:57:46,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-10-03 02:57:46,757 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:46,758 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:46,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:46,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:46,758 INFO L87 Difference]: Start difference. First operand 662 states and 753 transitions. Second operand 2 states. [2019-10-03 02:57:46,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:46,759 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:57:46,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:46,759 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-10-03 02:57:46,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:46,759 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:57:46,760 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:57:46,760 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:46,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:57:46,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:57:46,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:57:46,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:57:46,761 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2019-10-03 02:57:46,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:46,761 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:57:46,761 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:46,761 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:57:46,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:57:46,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:57:46 BoogieIcfgContainer [2019-10-03 02:57:46,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:57:46,771 INFO L168 Benchmark]: Toolchain (without parser) took 6868.02 ms. Allocated memory was 138.9 MB in the beginning and 326.6 MB in the end (delta: 187.7 MB). Free memory was 86.0 MB in the beginning and 130.8 MB in the end (delta: -44.8 MB). Peak memory consumption was 142.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:46,772 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:57:46,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.79 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 85.8 MB in the beginning and 162.1 MB in the end (delta: -76.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:46,776 INFO L168 Benchmark]: Boogie Preprocessor took 116.43 ms. Allocated memory is still 199.2 MB. Free memory was 162.1 MB in the beginning and 157.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:46,782 INFO L168 Benchmark]: RCFGBuilder took 1315.20 ms. Allocated memory was 199.2 MB in the beginning and 221.8 MB in the end (delta: 22.5 MB). Free memory was 157.7 MB in the beginning and 188.0 MB in the end (delta: -30.3 MB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:46,783 INFO L168 Benchmark]: TraceAbstraction took 4641.12 ms. Allocated memory was 221.8 MB in the beginning and 326.6 MB in the end (delta: 104.9 MB). Free memory was 188.0 MB in the beginning and 130.8 MB in the end (delta: 57.2 MB). Peak memory consumption was 162.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:46,795 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 787.79 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 85.8 MB in the beginning and 162.1 MB in the end (delta: -76.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.43 ms. Allocated memory is still 199.2 MB. Free memory was 162.1 MB in the beginning and 157.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1315.20 ms. Allocated memory was 199.2 MB in the beginning and 221.8 MB in the end (delta: 22.5 MB). Free memory was 157.7 MB in the beginning and 188.0 MB in the end (delta: -30.3 MB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4641.12 ms. Allocated memory was 221.8 MB in the beginning and 326.6 MB in the end (delta: 104.9 MB). Free memory was 188.0 MB in the beginning and 130.8 MB in the end (delta: 57.2 MB). Peak memory consumption was 162.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 976]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 244 locations, 1 error locations. SAFE Result, 4.5s OverallTime, 11 OverallIterations, 2 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1590 SDtfs, 1007 SDslu, 3095 SDs, 0 SdLazy, 1041 SolverSat, 283 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=662occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8741721854304636 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 482 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 914 NumberOfCodeBlocks, 914 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 903 ConstructedInterpolants, 0 QuantifiedInterpolants, 131187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 49/55 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...