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_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:57:32,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:57:32,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:57:32,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:57:32,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:57:32,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:57:32,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:57:32,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:57:32,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:57:32,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:57:32,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:57:32,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:57:32,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:57:32,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:57:32,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:57:32,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:57:32,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:57:32,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:57:32,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:57:32,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:57:32,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:57:32,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:57:32,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:57:32,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:57:32,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:57:32,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:57:32,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:57:32,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:57:32,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:57:32,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:57:32,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:57:32,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:57:32,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:57:32,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:57:32,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:57:32,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:57:32,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:57:32,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:57:32,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:57:32,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:57:32,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:57:32,122 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 02:57:32,136 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:57:32,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:57:32,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:57:32,137 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:57:32,138 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:57:32,138 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:57:32,138 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:57:32,138 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:57:32,139 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:57:32,139 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:57:32,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:57:32,139 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:57:32,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:57:32,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:57:32,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:57:32,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:57:32,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:57:32,141 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:57:32,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:57:32,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:57:32,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:57:32,141 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:57:32,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:57:32,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:57:32,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:57:32,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:57:32,142 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:57:32,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:57:32,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:57:32,143 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:57:32,170 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:57:32,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:57:32,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:57:32,186 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:57:32,187 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:57:32,187 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product32.cil.c [2019-10-03 02:57:32,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2dda04b5/7ac263c2a7dc4172bad55a4d10b9ce8f/FLAG664eb18cd [2019-10-03 02:57:32,777 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:57:32,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product32.cil.c [2019-10-03 02:57:32,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2dda04b5/7ac263c2a7dc4172bad55a4d10b9ce8f/FLAG664eb18cd [2019-10-03 02:57:33,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2dda04b5/7ac263c2a7dc4172bad55a4d10b9ce8f [2019-10-03 02:57:33,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:57:33,085 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:57:33,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:33,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:57:33,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:57:33,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:33" (1/1) ... [2019-10-03 02:57:33,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2837cd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:33, skipping insertion in model container [2019-10-03 02:57:33,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:33" (1/1) ... [2019-10-03 02:57:33,100 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:57:33,144 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:57:33,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:33,607 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:57:33,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:33,731 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:57:33,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:33 WrapperNode [2019-10-03 02:57:33,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:33,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:57:33,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:57:33,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:57:33,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:33" (1/1) ... [2019-10-03 02:57:33,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:33" (1/1) ... [2019-10-03 02:57:33,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:33" (1/1) ... [2019-10-03 02:57:33,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:33" (1/1) ... [2019-10-03 02:57:33,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:33" (1/1) ... [2019-10-03 02:57:33,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:33" (1/1) ... [2019-10-03 02:57:33,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:33" (1/1) ... [2019-10-03 02:57:33,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:57:33,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:57:33,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:57:33,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:57:33,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:33" (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 02:57:33,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:57:33,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:57:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:57:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:57:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:57:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:57:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:57:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:57:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:57:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:57:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:57:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:57:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:57:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:57:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:57:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-03 02:57:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:57:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:57:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:57:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:57:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:57:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:57:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:57:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:57:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:57:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:57:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:57:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:57:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:57:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:57:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:57:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:57:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:57:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:33,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:57:33,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:57:33,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:57:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:57:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:57:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:57:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:57:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:57:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:57:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:57:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-03 02:57:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:57:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:57:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:57:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:57:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:57:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:57:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:57:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:57:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:57:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:57:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:57:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:57:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:57:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:57:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:57:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:57:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:57:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:57:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:57:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:57:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:57:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:57:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:57:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:57:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:57:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:57:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:57:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:57:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:57:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:57:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:57:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:57:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:57:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:57:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:57:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:57:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:57:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:57:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:57:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:57:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:57:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:57:35,092 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:57:35,092 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:57:35,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:35 BoogieIcfgContainer [2019-10-03 02:57:35,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:57:35,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:57:35,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:57:35,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:57:35,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:57:33" (1/3) ... [2019-10-03 02:57:35,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d540629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:35, skipping insertion in model container [2019-10-03 02:57:35,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:33" (2/3) ... [2019-10-03 02:57:35,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d540629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:35, skipping insertion in model container [2019-10-03 02:57:35,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:35" (3/3) ... [2019-10-03 02:57:35,101 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product32.cil.c [2019-10-03 02:57:35,111 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:57:35,119 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:57:35,135 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:57:35,162 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:57:35,162 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:57:35,162 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:57:35,162 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:57:35,163 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:57:35,163 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:57:35,163 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:57:35,163 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:57:35,184 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states. [2019-10-03 02:57:35,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:57:35,197 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:35,199 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 02:57:35,201 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:35,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:35,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1379034855, now seen corresponding path program 1 times [2019-10-03 02:57:35,209 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:35,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:35,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:35,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:35,264 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:35,518 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 02:57:35,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:35,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:57:35,521 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:35,526 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:35,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:35,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:35,543 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 2 states. [2019-10-03 02:57:35,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:35,572 INFO L93 Difference]: Finished difference Result 145 states and 171 transitions. [2019-10-03 02:57:35,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:35,574 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-10-03 02:57:35,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:35,585 INFO L225 Difference]: With dead ends: 145 [2019-10-03 02:57:35,585 INFO L226 Difference]: Without dead ends: 134 [2019-10-03 02:57:35,587 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 02:57:35,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-10-03 02:57:35,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-10-03 02:57:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-03 02:57:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 159 transitions. [2019-10-03 02:57:35,642 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 159 transitions. Word has length 51 [2019-10-03 02:57:35,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:35,642 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 159 transitions. [2019-10-03 02:57:35,642 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:35,642 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 159 transitions. [2019-10-03 02:57:35,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:57:35,646 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:35,646 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 02:57:35,647 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:35,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:35,647 INFO L82 PathProgramCache]: Analyzing trace with hash 164861133, now seen corresponding path program 1 times [2019-10-03 02:57:35,647 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:35,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:35,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:35,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:35,651 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:35,790 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 02:57:35,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:35,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:57:35,791 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:35,793 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:57:35,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:57:35,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:35,795 INFO L87 Difference]: Start difference. First operand 134 states and 159 transitions. Second operand 3 states. [2019-10-03 02:57:35,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:35,817 INFO L93 Difference]: Finished difference Result 125 states and 147 transitions. [2019-10-03 02:57:35,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:57:35,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-03 02:57:35,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:35,821 INFO L225 Difference]: With dead ends: 125 [2019-10-03 02:57:35,821 INFO L226 Difference]: Without dead ends: 125 [2019-10-03 02:57:35,823 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 02:57:35,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-03 02:57:35,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-10-03 02:57:35,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-03 02:57:35,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 147 transitions. [2019-10-03 02:57:35,848 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 147 transitions. Word has length 52 [2019-10-03 02:57:35,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:35,848 INFO L475 AbstractCegarLoop]: Abstraction has 125 states and 147 transitions. [2019-10-03 02:57:35,848 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:57:35,849 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 147 transitions. [2019-10-03 02:57:35,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-03 02:57:35,854 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:35,854 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 02:57:35,854 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:35,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:35,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1116626050, now seen corresponding path program 1 times [2019-10-03 02:57:35,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:35,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:35,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:35,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:35,860 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:36,076 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 02:57:36,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:36,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:36,077 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:36,077 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:36,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:36,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:36,078 INFO L87 Difference]: Start difference. First operand 125 states and 147 transitions. Second operand 7 states. [2019-10-03 02:57:36,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:36,584 INFO L93 Difference]: Finished difference Result 273 states and 332 transitions. [2019-10-03 02:57:36,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:57:36,585 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-10-03 02:57:36,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:36,592 INFO L225 Difference]: With dead ends: 273 [2019-10-03 02:57:36,592 INFO L226 Difference]: Without dead ends: 273 [2019-10-03 02:57:36,595 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:57:36,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2019-10-03 02:57:36,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 261. [2019-10-03 02:57:36,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2019-10-03 02:57:36,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 320 transitions. [2019-10-03 02:57:36,681 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 320 transitions. Word has length 57 [2019-10-03 02:57:36,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:36,681 INFO L475 AbstractCegarLoop]: Abstraction has 261 states and 320 transitions. [2019-10-03 02:57:36,681 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:36,682 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 320 transitions. [2019-10-03 02:57:36,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-03 02:57:36,690 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:36,690 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] [2019-10-03 02:57:36,691 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:36,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:36,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1686629375, now seen corresponding path program 1 times [2019-10-03 02:57:36,694 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:36,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:36,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:36,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:36,697 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:36,825 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 02:57:36,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:36,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:36,826 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:36,827 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:36,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:36,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:36,828 INFO L87 Difference]: Start difference. First operand 261 states and 320 transitions. Second operand 6 states. [2019-10-03 02:57:37,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:37,053 INFO L93 Difference]: Finished difference Result 476 states and 586 transitions. [2019-10-03 02:57:37,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:37,056 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-10-03 02:57:37,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:37,065 INFO L225 Difference]: With dead ends: 476 [2019-10-03 02:57:37,065 INFO L226 Difference]: Without dead ends: 476 [2019-10-03 02:57:37,067 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 02:57:37,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2019-10-03 02:57:37,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 470. [2019-10-03 02:57:37,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2019-10-03 02:57:37,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 580 transitions. [2019-10-03 02:57:37,126 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 580 transitions. Word has length 62 [2019-10-03 02:57:37,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:37,130 INFO L475 AbstractCegarLoop]: Abstraction has 470 states and 580 transitions. [2019-10-03 02:57:37,130 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:37,130 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 580 transitions. [2019-10-03 02:57:37,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-03 02:57:37,132 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:37,133 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] [2019-10-03 02:57:37,133 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:37,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:37,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1821599845, now seen corresponding path program 1 times [2019-10-03 02:57:37,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:37,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:37,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:37,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:37,137 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:37,239 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 02:57:37,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:37,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:37,240 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:37,242 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:37,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:37,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:37,244 INFO L87 Difference]: Start difference. First operand 470 states and 580 transitions. Second operand 7 states. [2019-10-03 02:57:37,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:37,569 INFO L93 Difference]: Finished difference Result 322 states and 369 transitions. [2019-10-03 02:57:37,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:37,569 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-10-03 02:57:37,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:37,570 INFO L225 Difference]: With dead ends: 322 [2019-10-03 02:57:37,570 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:57:37,571 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-03 02:57:37,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:57:37,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:57:37,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:57:37,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:57:37,572 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2019-10-03 02:57:37,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:37,572 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:57:37,572 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:37,573 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:57:37,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:57:37,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:57:37 BoogieIcfgContainer [2019-10-03 02:57:37,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:57:37,582 INFO L168 Benchmark]: Toolchain (without parser) took 4495.67 ms. Allocated memory was 141.0 MB in the beginning and 258.5 MB in the end (delta: 117.4 MB). Free memory was 88.1 MB in the beginning and 99.6 MB in the end (delta: -11.5 MB). Peak memory consumption was 106.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:37,583 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-03 02:57:37,585 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.32 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 87.9 MB in the beginning and 167.9 MB in the end (delta: -80.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:37,586 INFO L168 Benchmark]: Boogie Preprocessor took 84.13 ms. Allocated memory is still 201.3 MB. Free memory was 167.9 MB in the beginning and 163.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:37,588 INFO L168 Benchmark]: RCFGBuilder took 1277.11 ms. Allocated memory was 201.3 MB in the beginning and 228.1 MB in the end (delta: 26.7 MB). Free memory was 163.2 MB in the beginning and 194.3 MB in the end (delta: -31.1 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:37,589 INFO L168 Benchmark]: TraceAbstraction took 2484.10 ms. Allocated memory was 228.1 MB in the beginning and 258.5 MB in the end (delta: 30.4 MB). Free memory was 193.0 MB in the beginning and 99.6 MB in the end (delta: 93.4 MB). Peak memory consumption was 123.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:37,600 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 646.32 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 87.9 MB in the beginning and 167.9 MB in the end (delta: -80.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.13 ms. Allocated memory is still 201.3 MB. Free memory was 167.9 MB in the beginning and 163.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1277.11 ms. Allocated memory was 201.3 MB in the beginning and 228.1 MB in the end (delta: 26.7 MB). Free memory was 163.2 MB in the beginning and 194.3 MB in the end (delta: -31.1 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2484.10 ms. Allocated memory was 228.1 MB in the beginning and 258.5 MB in the end (delta: 30.4 MB). Free memory was 193.0 MB in the beginning and 99.6 MB in the end (delta: 93.4 MB). Peak memory consumption was 123.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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, 246 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 748 SDtfs, 442 SDslu, 1419 SDs, 0 SdLazy, 491 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=470occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 283 ConstructedInterpolants, 0 QuantifiedInterpolants, 30083 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...