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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:00,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:00,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:00,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:00,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:00,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:00,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:00,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:00,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:00,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:00,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:00,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:00,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:00,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:00,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:00,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:00,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:00,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:00,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:00,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:00,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:00,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:00,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:00,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:00,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:00,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:00,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:00,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:00,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:00,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:00,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:00,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:00,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:00,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:00,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:00,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:00,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:00,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:00,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:00,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:00,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:00,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:30:00,264 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:00,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:00,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:00,265 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:00,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:00,265 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:00,266 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:00,266 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:00,266 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:00,266 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:00,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:00,267 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:00,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:00,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:00,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:00,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:00,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:00,268 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:00,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:00,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:00,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:00,269 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:00,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:00,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:00,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:00,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:00,270 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:00,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:00,271 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:00,271 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:00,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:00,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:00,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:00,318 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:00,318 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:00,319 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product20.cil.c [2019-09-20 13:30:00,382 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aea22fba8/18bee458ff2b4750adcc8b797a380ab5/FLAG496b8e66f [2019-09-20 13:30:00,918 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:00,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product20.cil.c [2019-09-20 13:30:00,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aea22fba8/18bee458ff2b4750adcc8b797a380ab5/FLAG496b8e66f [2019-09-20 13:30:01,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aea22fba8/18bee458ff2b4750adcc8b797a380ab5 [2019-09-20 13:30:01,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:01,214 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:01,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:01,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:01,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:01,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:01" (1/1) ... [2019-09-20 13:30:01,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702bca65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:01, skipping insertion in model container [2019-09-20 13:30:01,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:01" (1/1) ... [2019-09-20 13:30:01,231 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:01,274 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:01,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:01,772 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:01,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:01,921 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:01,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:01 WrapperNode [2019-09-20 13:30:01,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:01,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:01,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:01,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:01,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:01" (1/1) ... [2019-09-20 13:30:01,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:01" (1/1) ... [2019-09-20 13:30:01,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:01" (1/1) ... [2019-09-20 13:30:01,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:01" (1/1) ... [2019-09-20 13:30:01,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:01" (1/1) ... [2019-09-20 13:30:01,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:01" (1/1) ... [2019-09-20 13:30:02,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:01" (1/1) ... [2019-09-20 13:30:02,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:02,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:02,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:02,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:02,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:02,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:02,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:02,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:02,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:02,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:02,085 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:02,085 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:02,085 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:02,085 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:02,085 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:02,086 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:02,086 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:02,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:02,087 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:02,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:02,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:02,089 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:02,089 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:02,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:02,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:02,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:30:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:02,095 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:02,095 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:02,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:02,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:02,095 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:30:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:03,250 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:03,250 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:03,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:03 BoogieIcfgContainer [2019-09-20 13:30:03,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:03,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:03,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:03,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:03,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:01" (1/3) ... [2019-09-20 13:30:03,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb91f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:03, skipping insertion in model container [2019-09-20 13:30:03,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:01" (2/3) ... [2019-09-20 13:30:03,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb91f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:03, skipping insertion in model container [2019-09-20 13:30:03,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:03" (3/3) ... [2019-09-20 13:30:03,281 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product20.cil.c [2019-09-20 13:30:03,291 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:03,304 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:03,323 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:03,353 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:03,353 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:03,353 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:03,353 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:03,354 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:03,354 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:03,354 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:03,354 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:03,374 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2019-09-20 13:30:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:03,389 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:03,390 INFO L407 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] [2019-09-20 13:30:03,392 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:03,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:03,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1678806906, now seen corresponding path program 1 times [2019-09-20 13:30:03,400 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:03,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:03,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:03,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:03,458 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:03,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:03,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:03,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:03,785 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:03,793 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:03,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:03,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:03,814 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2019-09-20 13:30:03,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:03,861 INFO L93 Difference]: Finished difference Result 130 states and 151 transitions. [2019-09-20 13:30:03,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:03,863 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:03,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:03,889 INFO L225 Difference]: With dead ends: 130 [2019-09-20 13:30:03,890 INFO L226 Difference]: Without dead ends: 119 [2019-09-20 13:30:03,892 INFO L636 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 [2019-09-20 13:30:03,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-09-20 13:30:03,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-09-20 13:30:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-09-20 13:30:03,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2019-09-20 13:30:03,944 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 51 [2019-09-20 13:30:03,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:03,944 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2019-09-20 13:30:03,944 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:03,944 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2019-09-20 13:30:03,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:03,948 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:03,948 INFO L407 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] [2019-09-20 13:30:03,949 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:03,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:03,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1533869534, now seen corresponding path program 1 times [2019-09-20 13:30:03,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:03,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:03,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:03,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:03,952 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:04,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:04,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:04,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:04,121 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:04,124 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:04,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:04,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:04,125 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand 3 states. [2019-09-20 13:30:04,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:04,157 INFO L93 Difference]: Finished difference Result 110 states and 127 transitions. [2019-09-20 13:30:04,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:04,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:04,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:04,160 INFO L225 Difference]: With dead ends: 110 [2019-09-20 13:30:04,160 INFO L226 Difference]: Without dead ends: 110 [2019-09-20 13:30:04,161 INFO L636 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 [2019-09-20 13:30:04,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-09-20 13:30:04,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-09-20 13:30:04,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-09-20 13:30:04,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions. [2019-09-20 13:30:04,175 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 52 [2019-09-20 13:30:04,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:04,176 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 127 transitions. [2019-09-20 13:30:04,176 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:04,176 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions. [2019-09-20 13:30:04,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:04,179 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:04,180 INFO L407 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] [2019-09-20 13:30:04,180 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:04,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:04,183 INFO L82 PathProgramCache]: Analyzing trace with hash 2046992772, now seen corresponding path program 1 times [2019-09-20 13:30:04,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:04,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:04,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:04,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:04,188 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:04,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:04,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:04,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:04,388 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:04,389 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:04,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:04,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:04,392 INFO L87 Difference]: Start difference. First operand 110 states and 127 transitions. Second operand 7 states. [2019-09-20 13:30:04,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:04,808 INFO L93 Difference]: Finished difference Result 243 states and 292 transitions. [2019-09-20 13:30:04,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:04,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:30:04,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:04,813 INFO L225 Difference]: With dead ends: 243 [2019-09-20 13:30:04,813 INFO L226 Difference]: Without dead ends: 243 [2019-09-20 13:30:04,814 INFO L636 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 [2019-09-20 13:30:04,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-09-20 13:30:04,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 231. [2019-09-20 13:30:04,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2019-09-20 13:30:04,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 280 transitions. [2019-09-20 13:30:04,854 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 280 transitions. Word has length 57 [2019-09-20 13:30:04,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:04,855 INFO L475 AbstractCegarLoop]: Abstraction has 231 states and 280 transitions. [2019-09-20 13:30:04,855 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:04,855 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 280 transitions. [2019-09-20 13:30:04,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:30:04,862 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:04,862 INFO L407 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] [2019-09-20 13:30:04,862 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:04,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:04,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1465271355, now seen corresponding path program 1 times [2019-09-20 13:30:04,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:04,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:04,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:04,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:04,867 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:05,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:05,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:05,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:05,015 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:05,016 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:05,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:05,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:05,017 INFO L87 Difference]: Start difference. First operand 231 states and 280 transitions. Second operand 6 states. [2019-09-20 13:30:05,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:05,214 INFO L93 Difference]: Finished difference Result 416 states and 506 transitions. [2019-09-20 13:30:05,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:05,215 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-20 13:30:05,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:05,219 INFO L225 Difference]: With dead ends: 416 [2019-09-20 13:30:05,219 INFO L226 Difference]: Without dead ends: 416 [2019-09-20 13:30:05,220 INFO L636 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 [2019-09-20 13:30:05,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-09-20 13:30:05,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 410. [2019-09-20 13:30:05,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2019-09-20 13:30:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 500 transitions. [2019-09-20 13:30:05,254 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 500 transitions. Word has length 62 [2019-09-20 13:30:05,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:05,254 INFO L475 AbstractCegarLoop]: Abstraction has 410 states and 500 transitions. [2019-09-20 13:30:05,254 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:05,255 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 500 transitions. [2019-09-20 13:30:05,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-20 13:30:05,257 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:05,258 INFO L407 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] [2019-09-20 13:30:05,258 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:05,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:05,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1017707479, now seen corresponding path program 1 times [2019-09-20 13:30:05,258 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:05,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:05,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:05,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:05,261 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:05,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:05,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:05,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:05,346 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:05,346 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:05,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:05,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:05,347 INFO L87 Difference]: Start difference. First operand 410 states and 500 transitions. Second operand 6 states. [2019-09-20 13:30:05,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:05,519 INFO L93 Difference]: Finished difference Result 302 states and 349 transitions. [2019-09-20 13:30:05,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:05,520 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2019-09-20 13:30:05,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:05,521 INFO L225 Difference]: With dead ends: 302 [2019-09-20 13:30:05,521 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:05,522 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:05,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:05,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:05,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:05,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:05,523 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2019-09-20 13:30:05,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:05,525 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:05,525 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:05,525 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:05,525 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:05,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:05 BoogieIcfgContainer [2019-09-20 13:30:05,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:05,534 INFO L168 Benchmark]: Toolchain (without parser) took 4319.37 ms. Allocated memory was 138.4 MB in the beginning and 265.8 MB in the end (delta: 127.4 MB). Free memory was 85.4 MB in the beginning and 150.4 MB in the end (delta: -65.0 MB). Peak memory consumption was 62.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:05,535 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:05,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.05 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 85.2 MB in the beginning and 165.0 MB in the end (delta: -79.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:05,539 INFO L168 Benchmark]: Boogie Preprocessor took 86.70 ms. Allocated memory is still 198.7 MB. Free memory was 165.0 MB in the beginning and 161.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:05,540 INFO L168 Benchmark]: RCFGBuilder took 1242.58 ms. Allocated memory is still 198.7 MB. Free memory was 161.2 MB in the beginning and 75.3 MB in the end (delta: 85.9 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:05,541 INFO L168 Benchmark]: TraceAbstraction took 2276.24 ms. Allocated memory was 198.7 MB in the beginning and 265.8 MB in the end (delta: 67.1 MB). Free memory was 75.3 MB in the beginning and 150.4 MB in the end (delta: -75.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:30:05,550 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.05 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 85.2 MB in the beginning and 165.0 MB in the end (delta: -79.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.70 ms. Allocated memory is still 198.7 MB. Free memory was 165.0 MB in the beginning and 161.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1242.58 ms. Allocated memory is still 198.7 MB. Free memory was 161.2 MB in the beginning and 75.3 MB in the end (delta: 85.9 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2276.24 ms. Allocated memory was 198.7 MB in the beginning and 265.8 MB in the end (delta: 67.1 MB). Free memory was 75.3 MB in the beginning and 150.4 MB in the end (delta: -75.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 685]: 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 40 procedures, 229 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 673 SDtfs, 367 SDslu, 1361 SDs, 0 SdLazy, 309 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=410occurred 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: 0.1s 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, 26703 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...