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_spec5_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:58:46,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:46,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:46,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:46,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:46,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:46,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:46,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:46,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:46,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:46,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:46,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:46,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:46,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:46,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:46,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:46,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:46,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:46,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:46,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:46,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:46,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:46,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:46,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:46,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:46,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:46,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:46,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:46,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:46,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:46,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:46,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:46,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:46,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:46,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:46,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:46,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:46,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:46,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:46,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:46,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:46,099 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 02:58:46,124 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:46,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:46,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:46,126 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:46,126 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:46,126 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:46,127 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:46,127 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:46,127 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:46,127 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:46,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:46,130 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:46,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:46,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:46,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:46,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:46,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:46,131 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:46,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:46,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:46,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:46,132 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:46,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:46,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:46,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:46,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:46,133 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:46,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:46,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:46,134 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:46,184 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:46,196 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:46,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:46,201 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:46,201 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:46,202 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product14.cil.c [2019-10-03 02:58:46,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ceabc93/3f7d834f09154332a257ce3afa6c0130/FLAG5a5e6d0e1 [2019-10-03 02:58:46,826 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:46,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product14.cil.c [2019-10-03 02:58:46,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ceabc93/3f7d834f09154332a257ce3afa6c0130/FLAG5a5e6d0e1 [2019-10-03 02:58:47,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ceabc93/3f7d834f09154332a257ce3afa6c0130 [2019-10-03 02:58:47,149 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:47,150 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:47,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:47,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:47,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:47,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:47" (1/1) ... [2019-10-03 02:58:47,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d0606c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:47, skipping insertion in model container [2019-10-03 02:58:47,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:47" (1/1) ... [2019-10-03 02:58:47,171 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:47,228 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:47,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:47,702 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:47,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:47,848 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:47,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:47 WrapperNode [2019-10-03 02:58:47,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:47,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:47,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:47,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:47,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:47" (1/1) ... [2019-10-03 02:58:47,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:47" (1/1) ... [2019-10-03 02:58:47,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:47" (1/1) ... [2019-10-03 02:58:47,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:47" (1/1) ... [2019-10-03 02:58:47,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:47" (1/1) ... [2019-10-03 02:58:47,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:47" (1/1) ... [2019-10-03 02:58:47,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:47" (1/1) ... [2019-10-03 02:58:47,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:47,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:47,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:47,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:47,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:47" (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 02:58:48,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:48,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:48,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:48,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:58:48,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:58:48,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:58:48,047 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:48,047 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:48,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:48,047 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:48,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:48,049 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:48,049 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:58:48,049 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:48,049 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-10-03 02:58:48,049 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:48,049 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:48,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:48,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:48,050 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:48,050 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:58:48,050 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:48,050 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:58:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:58:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:58:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:58:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:58:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-10-03 02:58:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:49,135 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:49,136 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:49,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:49 BoogieIcfgContainer [2019-10-03 02:58:49,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:49,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:49,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:49,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:49,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:47" (1/3) ... [2019-10-03 02:58:49,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66219ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:49, skipping insertion in model container [2019-10-03 02:58:49,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:47" (2/3) ... [2019-10-03 02:58:49,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66219ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:49, skipping insertion in model container [2019-10-03 02:58:49,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:49" (3/3) ... [2019-10-03 02:58:49,147 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product14.cil.c [2019-10-03 02:58:49,159 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:49,170 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:49,188 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:49,223 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:49,224 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:49,224 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:49,224 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:49,224 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:49,225 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:49,225 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:49,225 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:49,247 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2019-10-03 02:58:49,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-03 02:58:49,260 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:49,262 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:49,264 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:49,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:49,269 INFO L82 PathProgramCache]: Analyzing trace with hash -2005015922, now seen corresponding path program 1 times [2019-10-03 02:58:49,272 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:49,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:49,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:49,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:49,321 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:49,657 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:58:49,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:49,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:49,660 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:49,667 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:49,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:49,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:49,686 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2019-10-03 02:58:49,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:49,710 INFO L93 Difference]: Finished difference Result 127 states and 146 transitions. [2019-10-03 02:58:49,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:49,712 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-10-03 02:58:49,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:49,724 INFO L225 Difference]: With dead ends: 127 [2019-10-03 02:58:49,724 INFO L226 Difference]: Without dead ends: 116 [2019-10-03 02:58:49,726 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 02:58:49,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-03 02:58:49,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-10-03 02:58:49,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-10-03 02:58:49,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions. [2019-10-03 02:58:49,777 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 59 [2019-10-03 02:58:49,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:49,777 INFO L475 AbstractCegarLoop]: Abstraction has 116 states and 134 transitions. [2019-10-03 02:58:49,777 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:49,778 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions. [2019-10-03 02:58:49,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-03 02:58:49,781 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:49,782 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:49,782 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:49,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:49,782 INFO L82 PathProgramCache]: Analyzing trace with hash 462950838, now seen corresponding path program 1 times [2019-10-03 02:58:49,783 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:49,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:49,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:49,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:49,786 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:49,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:58:49,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:49,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:49,932 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:49,934 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:49,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:49,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:49,935 INFO L87 Difference]: Start difference. First operand 116 states and 134 transitions. Second operand 3 states. [2019-10-03 02:58:49,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:49,949 INFO L93 Difference]: Finished difference Result 107 states and 122 transitions. [2019-10-03 02:58:49,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:49,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-03 02:58:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:49,952 INFO L225 Difference]: With dead ends: 107 [2019-10-03 02:58:49,952 INFO L226 Difference]: Without dead ends: 107 [2019-10-03 02:58:49,953 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 02:58:49,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-10-03 02:58:49,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-10-03 02:58:49,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-10-03 02:58:49,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2019-10-03 02:58:49,967 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 60 [2019-10-03 02:58:49,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:49,968 INFO L475 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2019-10-03 02:58:49,968 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:49,968 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2019-10-03 02:58:49,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-03 02:58:49,970 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:49,970 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:49,971 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:49,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:49,971 INFO L82 PathProgramCache]: Analyzing trace with hash -152361795, now seen corresponding path program 1 times [2019-10-03 02:58:49,971 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:49,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:49,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:49,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:49,975 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:50,124 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:58:50,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:50,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:50,125 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:50,126 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:50,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:50,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:50,127 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 7 states. [2019-10-03 02:58:50,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:50,460 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2019-10-03 02:58:50,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:58:50,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-10-03 02:58:50,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:50,465 INFO L225 Difference]: With dead ends: 107 [2019-10-03 02:58:50,465 INFO L226 Difference]: Without dead ends: 107 [2019-10-03 02:58:50,466 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 02:58:50,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-10-03 02:58:50,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-10-03 02:58:50,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-10-03 02:58:50,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2019-10-03 02:58:50,477 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 65 [2019-10-03 02:58:50,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:50,480 INFO L475 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2019-10-03 02:58:50,480 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:50,480 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2019-10-03 02:58:50,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-03 02:58:50,483 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:50,483 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:50,483 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:50,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:50,484 INFO L82 PathProgramCache]: Analyzing trace with hash -118162915, now seen corresponding path program 1 times [2019-10-03 02:58:50,484 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:50,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:50,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:50,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:50,488 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:50,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:58:50,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:50,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:50,674 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:50,676 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:50,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:50,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:50,678 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 7 states. [2019-10-03 02:58:51,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:51,041 INFO L93 Difference]: Finished difference Result 85 states and 93 transitions. [2019-10-03 02:58:51,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:58:51,041 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-10-03 02:58:51,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:51,042 INFO L225 Difference]: With dead ends: 85 [2019-10-03 02:58:51,043 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:51,045 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 02:58:51,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:51,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:51,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:51,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:51,046 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2019-10-03 02:58:51,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:51,046 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:51,046 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:51,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:51,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:51,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:51 BoogieIcfgContainer [2019-10-03 02:58:51,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:51,062 INFO L168 Benchmark]: Toolchain (without parser) took 3908.67 ms. Allocated memory was 139.5 MB in the beginning and 260.6 MB in the end (delta: 121.1 MB). Free memory was 86.0 MB in the beginning and 179.2 MB in the end (delta: -93.2 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:51,064 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 139.5 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-03 02:58:51,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.80 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 85.8 MB in the beginning and 164.7 MB in the end (delta: -78.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:51,068 INFO L168 Benchmark]: Boogie Preprocessor took 117.39 ms. Allocated memory is still 199.2 MB. Free memory was 164.7 MB in the beginning and 161.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:51,069 INFO L168 Benchmark]: RCFGBuilder took 1169.67 ms. Allocated memory was 199.2 MB in the beginning and 223.3 MB in the end (delta: 24.1 MB). Free memory was 160.4 MB in the beginning and 192.8 MB in the end (delta: -32.3 MB). Peak memory consumption was 90.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:51,072 INFO L168 Benchmark]: TraceAbstraction took 1918.34 ms. Allocated memory was 223.3 MB in the beginning and 260.6 MB in the end (delta: 37.2 MB). Free memory was 192.8 MB in the beginning and 179.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 50.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:51,082 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 139.5 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.80 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 85.8 MB in the beginning and 164.7 MB in the end (delta: -78.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.39 ms. Allocated memory is still 199.2 MB. Free memory was 164.7 MB in the beginning and 161.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1169.67 ms. Allocated memory was 199.2 MB in the beginning and 223.3 MB in the end (delta: 24.1 MB). Free memory was 160.4 MB in the beginning and 192.8 MB in the end (delta: -32.3 MB). Peak memory consumption was 90.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1918.34 ms. Allocated memory was 223.3 MB in the beginning and 260.6 MB in the end (delta: 37.2 MB). Free memory was 192.8 MB in the beginning and 179.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 50.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 916]: 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 39 procedures, 225 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 455 SDtfs, 206 SDslu, 471 SDs, 0 SdLazy, 296 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=0, 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 27417 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...