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_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:57:27,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:57:27,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:57:27,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:57:27,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:57:27,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:57:27,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:57:27,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:57:27,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:57:27,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:57:27,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:57:27,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:57:27,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:57:27,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:57:27,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:57:27,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:57:27,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:57:27,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:57:27,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:57:27,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:57:27,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:57:27,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:57:27,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:57:27,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:57:27,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:57:27,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:57:27,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:57:27,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:57:27,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:57:27,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:57:27,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:57:27,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:57:27,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:57:27,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:57:27,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:57:27,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:57:27,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:57:27,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:57:27,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:57:27,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:57:27,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:57:27,197 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:57:27,222 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:57:27,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:57:27,223 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:57:27,223 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:57:27,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:57:27,224 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:57:27,224 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:57:27,224 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:57:27,225 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:57:27,225 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:57:27,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:57:27,227 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:57:27,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:57:27,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:57:27,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:57:27,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:57:27,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:57:27,229 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:57:27,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:57:27,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:57:27,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:57:27,230 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:57:27,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:57:27,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:57:27,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:57:27,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:57:27,231 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:57:27,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:57:27,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:57:27,231 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:57:27,272 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:57:27,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:57:27,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:57:27,288 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:57:27,288 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:57:27,289 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product25.cil.c [2019-10-03 02:57:27,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf67eee0/9b9ffa99627a4f54a204e232f49191c3/FLAGc778d2456 [2019-10-03 02:57:27,924 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:57:27,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product25.cil.c [2019-10-03 02:57:27,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf67eee0/9b9ffa99627a4f54a204e232f49191c3/FLAGc778d2456 [2019-10-03 02:57:28,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf67eee0/9b9ffa99627a4f54a204e232f49191c3 [2019-10-03 02:57:28,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:57:28,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:57:28,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:28,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:57:28,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:57:28,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:28" (1/1) ... [2019-10-03 02:57:28,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297c3183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:28, skipping insertion in model container [2019-10-03 02:57:28,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:28" (1/1) ... [2019-10-03 02:57:28,225 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:57:28,281 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:57:28,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:28,773 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:57:28,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:28,914 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:57:28,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:28 WrapperNode [2019-10-03 02:57:28,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:28,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:57:28,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:57:28,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:57:28,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:28" (1/1) ... [2019-10-03 02:57:28,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:28" (1/1) ... [2019-10-03 02:57:28,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:28" (1/1) ... [2019-10-03 02:57:28,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:28" (1/1) ... [2019-10-03 02:57:28,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:28" (1/1) ... [2019-10-03 02:57:28,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:28" (1/1) ... [2019-10-03 02:57:28,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:28" (1/1) ... [2019-10-03 02:57:29,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:57:29,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:57:29,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:57:29,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:57:29,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:57:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:57:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:57:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:57:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:57:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:57:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:57:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:57:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:57:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:57:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:57:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:57:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:57:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:57:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:57:29,099 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:57:29,099 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:57:29,099 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:57:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:57:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:57:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:57:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:57:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:57:29,101 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:57:29,101 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:57:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:57:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:57:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:57:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:57:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:57:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:57:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:57:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:57:29,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:57:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:57:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:57:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:57:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:57:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:57:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:57:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:57:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:57:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:57:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:57:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:57:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:57:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:57:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:57:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:57:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:57:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:57:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:57:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:57:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:57:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:57:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:57:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:57:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:57:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:57:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:57:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:57:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:57:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:57:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:57:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:57:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:57:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:57:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:57:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:57:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:57:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:57:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:57:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:57:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:57:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:57:29,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:57:29,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:57:29,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:57:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:57:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:57:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:57:30,200 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:57:30,200 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:57:30,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:30 BoogieIcfgContainer [2019-10-03 02:57:30,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:57:30,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:57:30,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:57:30,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:57:30,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:57:28" (1/3) ... [2019-10-03 02:57:30,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e7a1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:30, skipping insertion in model container [2019-10-03 02:57:30,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:28" (2/3) ... [2019-10-03 02:57:30,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e7a1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:30, skipping insertion in model container [2019-10-03 02:57:30,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:30" (3/3) ... [2019-10-03 02:57:30,213 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product25.cil.c [2019-10-03 02:57:30,224 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:57:30,237 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:57:30,256 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:57:30,288 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:57:30,288 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:57:30,288 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:57:30,288 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:57:30,288 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:57:30,288 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:57:30,288 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:57:30,288 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:57:30,315 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2019-10-03 02:57:30,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:57:30,330 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:30,331 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:30,334 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:30,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:30,339 INFO L82 PathProgramCache]: Analyzing trace with hash 360322955, now seen corresponding path program 1 times [2019-10-03 02:57:30,341 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:30,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:30,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:30,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:30,399 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:30,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:30,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:30,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:57:30,762 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:30,768 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:30,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:30,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:30,785 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 2 states. [2019-10-03 02:57:30,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:30,813 INFO L93 Difference]: Finished difference Result 120 states and 139 transitions. [2019-10-03 02:57:30,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:30,815 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-10-03 02:57:30,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:30,828 INFO L225 Difference]: With dead ends: 120 [2019-10-03 02:57:30,829 INFO L226 Difference]: Without dead ends: 109 [2019-10-03 02:57:30,831 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:30,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-10-03 02:57:30,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-10-03 02:57:30,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-10-03 02:57:30,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2019-10-03 02:57:30,889 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 51 [2019-10-03 02:57:30,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:30,890 INFO L475 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2019-10-03 02:57:30,890 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:30,890 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2019-10-03 02:57:30,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:57:30,893 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:30,894 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:30,894 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:30,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:30,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1474642768, now seen corresponding path program 1 times [2019-10-03 02:57:30,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:30,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:30,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:30,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:30,898 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:31,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:31,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:31,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:57:31,060 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:31,063 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:57:31,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:57:31,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:31,065 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 3 states. [2019-10-03 02:57:31,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:31,102 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2019-10-03 02:57:31,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:57:31,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-03 02:57:31,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:31,106 INFO L225 Difference]: With dead ends: 100 [2019-10-03 02:57:31,107 INFO L226 Difference]: Without dead ends: 100 [2019-10-03 02:57:31,109 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:31,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-10-03 02:57:31,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-10-03 02:57:31,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-10-03 02:57:31,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2019-10-03 02:57:31,134 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 52 [2019-10-03 02:57:31,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:31,135 INFO L475 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2019-10-03 02:57:31,135 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:57:31,135 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2019-10-03 02:57:31,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-03 02:57:31,140 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:31,140 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:31,141 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:31,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:31,141 INFO L82 PathProgramCache]: Analyzing trace with hash -282288247, now seen corresponding path program 1 times [2019-10-03 02:57:31,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:31,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:31,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:31,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:31,144 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:31,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:31,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:31,329 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:31,330 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:31,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:31,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:31,331 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 7 states. [2019-10-03 02:57:31,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:31,600 INFO L93 Difference]: Finished difference Result 100 states and 114 transitions. [2019-10-03 02:57:31,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:57:31,601 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-03 02:57:31,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:31,603 INFO L225 Difference]: With dead ends: 100 [2019-10-03 02:57:31,603 INFO L226 Difference]: Without dead ends: 100 [2019-10-03 02:57:31,604 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:57:31,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-10-03 02:57:31,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-10-03 02:57:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-10-03 02:57:31,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2019-10-03 02:57:31,612 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 56 [2019-10-03 02:57:31,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:31,613 INFO L475 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2019-10-03 02:57:31,613 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:31,613 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2019-10-03 02:57:31,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-03 02:57:31,615 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:31,615 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:31,616 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:31,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:31,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1883415514, now seen corresponding path program 1 times [2019-10-03 02:57:31,616 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:31,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:31,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:31,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:31,620 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:31,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:31,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:31,728 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:31,728 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:31,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:31,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:31,729 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 6 states. [2019-10-03 02:57:31,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:31,926 INFO L93 Difference]: Finished difference Result 164 states and 190 transitions. [2019-10-03 02:57:31,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:31,927 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-10-03 02:57:31,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:31,930 INFO L225 Difference]: With dead ends: 164 [2019-10-03 02:57:31,931 INFO L226 Difference]: Without dead ends: 164 [2019-10-03 02:57:31,931 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:57:31,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-10-03 02:57:31,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2019-10-03 02:57:31,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-10-03 02:57:31,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 188 transitions. [2019-10-03 02:57:31,958 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 188 transitions. Word has length 64 [2019-10-03 02:57:31,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:31,959 INFO L475 AbstractCegarLoop]: Abstraction has 162 states and 188 transitions. [2019-10-03 02:57:31,959 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:31,960 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 188 transitions. [2019-10-03 02:57:31,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-03 02:57:31,961 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:31,961 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:31,962 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:31,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:31,962 INFO L82 PathProgramCache]: Analyzing trace with hash 515534978, now seen corresponding path program 1 times [2019-10-03 02:57:31,966 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:31,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:31,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:31,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:31,970 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:32,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:32,116 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:32,116 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:32,116 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:32,118 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:32,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:32,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:32,119 INFO L87 Difference]: Start difference. First operand 162 states and 188 transitions. Second operand 7 states. [2019-10-03 02:57:32,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:32,455 INFO L93 Difference]: Finished difference Result 116 states and 129 transitions. [2019-10-03 02:57:32,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:32,456 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2019-10-03 02:57:32,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:32,456 INFO L225 Difference]: With dead ends: 116 [2019-10-03 02:57:32,457 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:57:32,457 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-03 02:57:32,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:57:32,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:57:32,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:57:32,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:57:32,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2019-10-03 02:57:32,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:32,458 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:57:32,458 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:32,459 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:57:32,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:57:32,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:57:32 BoogieIcfgContainer [2019-10-03 02:57:32,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:57:32,467 INFO L168 Benchmark]: Toolchain (without parser) took 4257.93 ms. Allocated memory was 140.5 MB in the beginning and 259.0 MB in the end (delta: 118.5 MB). Free memory was 85.6 MB in the beginning and 147.6 MB in the end (delta: -62.0 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:32,470 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 105.3 MB in the beginning and 105.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:57:32,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.04 ms. Allocated memory was 140.5 MB in the beginning and 201.3 MB in the end (delta: 60.8 MB). Free memory was 85.3 MB in the beginning and 166.8 MB in the end (delta: -81.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:32,475 INFO L168 Benchmark]: Boogie Preprocessor took 87.81 ms. Allocated memory is still 201.3 MB. Free memory was 166.8 MB in the beginning and 162.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:32,476 INFO L168 Benchmark]: RCFGBuilder took 1198.50 ms. Allocated memory was 201.3 MB in the beginning and 227.0 MB in the end (delta: 25.7 MB). Free memory was 162.6 MB in the beginning and 196.3 MB in the end (delta: -33.6 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:32,478 INFO L168 Benchmark]: TraceAbstraction took 2259.80 ms. Allocated memory was 227.0 MB in the beginning and 259.0 MB in the end (delta: 32.0 MB). Free memory was 195.0 MB in the beginning and 147.6 MB in the end (delta: 47.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:32,489 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 105.3 MB in the beginning and 105.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.04 ms. Allocated memory was 140.5 MB in the beginning and 201.3 MB in the end (delta: 60.8 MB). Free memory was 85.3 MB in the beginning and 166.8 MB in the end (delta: -81.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.81 ms. Allocated memory is still 201.3 MB. Free memory was 166.8 MB in the beginning and 162.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1198.50 ms. Allocated memory was 201.3 MB in the beginning and 227.0 MB in the end (delta: 25.7 MB). Free memory was 162.6 MB in the beginning and 196.3 MB in the end (delta: -33.6 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2259.80 ms. Allocated memory was 227.0 MB in the beginning and 259.0 MB in the end (delta: 32.0 MB). Free memory was 195.0 MB in the beginning and 147.6 MB in the end (delta: 47.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 518]: 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, 226 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 550 SDtfs, 263 SDslu, 859 SDs, 0 SdLazy, 316 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 30424 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...