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_spec1_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:48,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:48,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:48,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:48,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:48,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:48,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:48,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:48,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:48,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:48,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:48,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:48,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:48,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:48,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:48,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:48,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:48,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:48,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:48,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:48,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:48,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:48,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:48,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:48,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:48,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:48,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:48,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:48,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:48,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:48,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:48,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:48,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:48,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:48,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:48,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:48,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:48,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:48,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:48,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:48,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:48,333 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 [2019-09-16 17:07:48,348 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:48,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:48,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:48,349 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:48,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:48,350 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:48,350 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:48,350 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:48,350 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:48,350 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:48,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:48,351 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:48,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:48,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:48,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:48,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:48,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:48,353 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:48,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:48,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:48,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:48,353 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:48,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:48,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:48,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:48,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:48,354 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:48,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:48,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:48,355 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:48,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:48,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:48,404 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:48,406 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:48,408 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:48,409 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product22.cil.c [2019-09-16 17:07:48,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aab478be0/bb53beb393ef49029a47db8ce1779311/FLAGa7fa13de9 [2019-09-16 17:07:49,000 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:49,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product22.cil.c [2019-09-16 17:07:49,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aab478be0/bb53beb393ef49029a47db8ce1779311/FLAGa7fa13de9 [2019-09-16 17:07:49,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aab478be0/bb53beb393ef49029a47db8ce1779311 [2019-09-16 17:07:49,295 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:49,297 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:49,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:49,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:49,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:49,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:49" (1/1) ... [2019-09-16 17:07:49,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e54403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:49, skipping insertion in model container [2019-09-16 17:07:49,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:49" (1/1) ... [2019-09-16 17:07:49,314 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:49,361 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:49,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:49,809 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:49,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:49,935 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:49,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:49 WrapperNode [2019-09-16 17:07:49,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:49,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:49,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:49,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:49,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:49" (1/1) ... [2019-09-16 17:07:49,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:49" (1/1) ... [2019-09-16 17:07:49,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:49" (1/1) ... [2019-09-16 17:07:49,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:49" (1/1) ... [2019-09-16 17:07:50,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:49" (1/1) ... [2019-09-16 17:07:50,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:49" (1/1) ... [2019-09-16 17:07:50,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:49" (1/1) ... [2019-09-16 17:07:50,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:50,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:50,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:50,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:50,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:49" (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 [2019-09-16 17:07:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:07:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:07:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:07:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:07:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:07:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:07:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:07:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:07:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:07:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:07:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:07:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:07:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:07:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:07:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:07:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:07:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:07:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:07:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:07:50,093 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:07:50,093 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:07:50,093 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-16 17:07:50,093 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:07:50,093 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:07:50,093 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:07:50,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:07:50,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:07:50,094 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:07:50,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:07:50,094 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:07:50,094 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:07:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:07:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:07:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:07:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:07:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:07:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:07:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:07:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:07:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:07:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:07:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:07:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:07:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:07:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:07:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:07:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:07:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:07:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:07:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:07:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:50,098 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:50,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:07:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:07:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:07:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:07:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:07:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:07:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:07:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:07:50,101 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:07:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:07:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:07:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:07:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:07:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:07:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-16 17:07:50,103 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:07:50,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:50,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:07:50,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:51,184 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:51,184 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:07:51,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:51 BoogieIcfgContainer [2019-09-16 17:07:51,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:51,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:51,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:51,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:51,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:49" (1/3) ... [2019-09-16 17:07:51,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c831db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:51, skipping insertion in model container [2019-09-16 17:07:51,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:49" (2/3) ... [2019-09-16 17:07:51,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c831db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:51, skipping insertion in model container [2019-09-16 17:07:51,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:51" (3/3) ... [2019-09-16 17:07:51,197 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product22.cil.c [2019-09-16 17:07:51,208 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:51,221 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:51,254 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:51,283 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:51,283 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:51,283 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:51,283 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:51,284 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:51,284 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:51,284 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:51,284 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:51,305 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2019-09-16 17:07:51,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:07:51,319 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:51,320 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] [2019-09-16 17:07:51,323 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:51,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:51,329 INFO L82 PathProgramCache]: Analyzing trace with hash 235935867, now seen corresponding path program 1 times [2019-09-16 17:07:51,332 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:51,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:51,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:51,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:51,395 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:51,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:51,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:51,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:51,737 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:51,743 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:51,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:51,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:51,760 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 2 states. [2019-09-16 17:07:51,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:51,785 INFO L93 Difference]: Finished difference Result 134 states and 157 transitions. [2019-09-16 17:07:51,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:51,787 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:07:51,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:51,800 INFO L225 Difference]: With dead ends: 134 [2019-09-16 17:07:51,801 INFO L226 Difference]: Without dead ends: 123 [2019-09-16 17:07:51,803 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 [2019-09-16 17:07:51,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-16 17:07:51,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-09-16 17:07:51,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-16 17:07:51,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2019-09-16 17:07:51,858 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 46 [2019-09-16 17:07:51,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:51,858 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2019-09-16 17:07:51,858 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:51,859 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2019-09-16 17:07:51,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:07:51,862 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:51,863 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] [2019-09-16 17:07:51,863 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:51,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:51,863 INFO L82 PathProgramCache]: Analyzing trace with hash 185530365, now seen corresponding path program 1 times [2019-09-16 17:07:51,864 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:51,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:51,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:51,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:51,867 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:51,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:51,959 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:51,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:07:51,959 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:51,961 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:07:51,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:07:51,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:51,962 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand 3 states. [2019-09-16 17:07:51,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:51,978 INFO L93 Difference]: Finished difference Result 114 states and 133 transitions. [2019-09-16 17:07:51,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:07:51,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:07:51,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:51,981 INFO L225 Difference]: With dead ends: 114 [2019-09-16 17:07:51,981 INFO L226 Difference]: Without dead ends: 114 [2019-09-16 17:07:51,982 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 [2019-09-16 17:07:51,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-16 17:07:51,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-16 17:07:51,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-16 17:07:51,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2019-09-16 17:07:51,995 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 47 [2019-09-16 17:07:51,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:51,995 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2019-09-16 17:07:51,996 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:07:51,996 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2019-09-16 17:07:51,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:07:51,998 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:51,998 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] [2019-09-16 17:07:51,999 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:51,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:51,999 INFO L82 PathProgramCache]: Analyzing trace with hash -175734546, now seen corresponding path program 1 times [2019-09-16 17:07:51,999 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:52,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:52,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:52,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:52,002 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:52,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:52,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:52,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:07:52,205 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:52,205 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:07:52,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:07:52,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:07:52,206 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 7 states. [2019-09-16 17:07:52,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:52,555 INFO L93 Difference]: Finished difference Result 114 states and 132 transitions. [2019-09-16 17:07:52,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:07:52,555 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:07:52,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:52,558 INFO L225 Difference]: With dead ends: 114 [2019-09-16 17:07:52,558 INFO L226 Difference]: Without dead ends: 114 [2019-09-16 17:07:52,559 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 [2019-09-16 17:07:52,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-16 17:07:52,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-16 17:07:52,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-16 17:07:52,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2019-09-16 17:07:52,579 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 52 [2019-09-16 17:07:52,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:52,580 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2019-09-16 17:07:52,580 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:07:52,581 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2019-09-16 17:07:52,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-16 17:07:52,587 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:52,587 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] [2019-09-16 17:07:52,587 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:52,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:52,588 INFO L82 PathProgramCache]: Analyzing trace with hash -733588211, now seen corresponding path program 1 times [2019-09-16 17:07:52,588 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:52,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:52,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:52,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:52,591 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:52,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:52,755 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:52,756 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:07:52,756 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:52,756 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:07:52,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:07:52,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:07:52,757 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 6 states. [2019-09-16 17:07:52,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:52,995 INFO L93 Difference]: Finished difference Result 197 states and 232 transitions. [2019-09-16 17:07:52,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:07:52,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-09-16 17:07:52,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:53,000 INFO L225 Difference]: With dead ends: 197 [2019-09-16 17:07:53,000 INFO L226 Difference]: Without dead ends: 197 [2019-09-16 17:07:53,000 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 [2019-09-16 17:07:53,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-09-16 17:07:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 195. [2019-09-16 17:07:53,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-09-16 17:07:53,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 230 transitions. [2019-09-16 17:07:53,035 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 230 transitions. Word has length 65 [2019-09-16 17:07:53,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:53,036 INFO L475 AbstractCegarLoop]: Abstraction has 195 states and 230 transitions. [2019-09-16 17:07:53,036 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:07:53,036 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 230 transitions. [2019-09-16 17:07:53,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-16 17:07:53,048 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:53,048 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, 1, 1, 1] [2019-09-16 17:07:53,048 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:53,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:53,049 INFO L82 PathProgramCache]: Analyzing trace with hash 828198353, now seen corresponding path program 1 times [2019-09-16 17:07:53,049 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:53,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:53,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:53,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:53,056 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:53,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:53,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:53,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:07:53,172 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:53,172 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:07:53,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:07:53,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:07:53,173 INFO L87 Difference]: Start difference. First operand 195 states and 230 transitions. Second operand 7 states. [2019-09-16 17:07:53,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:53,475 INFO L93 Difference]: Finished difference Result 130 states and 143 transitions. [2019-09-16 17:07:53,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:07:53,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2019-09-16 17:07:53,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:53,477 INFO L225 Difference]: With dead ends: 130 [2019-09-16 17:07:53,477 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:07:53,477 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-16 17:07:53,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:07:53,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:07:53,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:07:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:07:53,478 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2019-09-16 17:07:53,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:53,479 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:07:53,479 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:07:53,479 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:07:53,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:07:53,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:07:53 BoogieIcfgContainer [2019-09-16 17:07:53,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:07:53,488 INFO L168 Benchmark]: Toolchain (without parser) took 4190.15 ms. Allocated memory was 137.9 MB in the beginning and 268.4 MB in the end (delta: 130.5 MB). Free memory was 84.6 MB in the beginning and 158.6 MB in the end (delta: -74.0 MB). Peak memory consumption was 56.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:53,489 INFO L168 Benchmark]: CDTParser took 1.49 ms. Allocated memory is still 137.9 MB. Free memory was 103.8 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:07:53,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.99 ms. Allocated memory was 137.9 MB in the beginning and 197.7 MB in the end (delta: 59.8 MB). Free memory was 84.4 MB in the beginning and 164.2 MB in the end (delta: -79.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:53,491 INFO L168 Benchmark]: Boogie Preprocessor took 92.75 ms. Allocated memory is still 197.7 MB. Free memory was 164.2 MB in the beginning and 160.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:53,492 INFO L168 Benchmark]: RCFGBuilder took 1156.97 ms. Allocated memory is still 197.7 MB. Free memory was 160.3 MB in the beginning and 75.1 MB in the end (delta: 85.2 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:53,493 INFO L168 Benchmark]: TraceAbstraction took 2297.69 ms. Allocated memory was 197.7 MB in the beginning and 268.4 MB in the end (delta: 70.8 MB). Free memory was 75.1 MB in the beginning and 158.6 MB in the end (delta: -83.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:07:53,497 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.49 ms. Allocated memory is still 137.9 MB. Free memory was 103.8 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 637.99 ms. Allocated memory was 137.9 MB in the beginning and 197.7 MB in the end (delta: 59.8 MB). Free memory was 84.4 MB in the beginning and 164.2 MB in the end (delta: -79.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.75 ms. Allocated memory is still 197.7 MB. Free memory was 164.2 MB in the beginning and 160.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1156.97 ms. Allocated memory is still 197.7 MB. Free memory was 160.3 MB in the beginning and 75.1 MB in the end (delta: 85.2 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2297.69 ms. Allocated memory was 197.7 MB in the beginning and 268.4 MB in the end (delta: 70.8 MB). Free memory was 75.1 MB in the beginning and 158.6 MB in the end (delta: -83.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 578]: 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, 228 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 631 SDtfs, 301 SDslu, 998 SDs, 0 SdLazy, 359 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 279 NumberOfCodeBlocks, 279 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 274 ConstructedInterpolants, 0 QuantifiedInterpolants, 29832 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...