java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:18,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:18,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:18,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:18,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:18,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:18,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:18,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:18,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:18,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:18,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:18,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:18,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:18,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:18,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:18,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:18,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:18,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:18,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:18,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:18,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:18,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:18,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:18,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:18,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:18,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:18,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:18,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:18,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:18,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:18,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:18,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:18,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:18,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:18,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:18,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:18,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:18,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:18,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:18,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:18,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:18,150 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:31:18,187 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:18,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:18,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:18,188 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:18,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:18,189 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:18,191 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:18,191 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:18,192 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:18,192 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:18,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:18,193 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:18,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:18,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:18,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:18,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:18,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:18,194 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:18,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:18,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:18,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:18,196 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:18,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:18,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:18,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:18,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:18,197 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:18,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:18,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:18,200 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:18,254 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:18,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:18,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:18,277 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:18,277 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:18,278 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product24.cil.c [2019-09-20 13:31:18,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55dc62e8f/68eb2c05a79b47d29524d13a387d2397/FLAGc8c194d0a [2019-09-20 13:31:18,896 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:18,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product24.cil.c [2019-09-20 13:31:18,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55dc62e8f/68eb2c05a79b47d29524d13a387d2397/FLAGc8c194d0a [2019-09-20 13:31:19,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55dc62e8f/68eb2c05a79b47d29524d13a387d2397 [2019-09-20 13:31:19,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:19,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:19,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:19,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:19,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:19,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:19" (1/1) ... [2019-09-20 13:31:19,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e8c44ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:19, skipping insertion in model container [2019-09-20 13:31:19,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:19" (1/1) ... [2019-09-20 13:31:19,227 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:19,297 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:19,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:19,777 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:19,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:19,917 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:19,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:19 WrapperNode [2019-09-20 13:31:19,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:19,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:19,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:19,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:19,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:19" (1/1) ... [2019-09-20 13:31:19,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:19" (1/1) ... [2019-09-20 13:31:19,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:19" (1/1) ... [2019-09-20 13:31:19,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:19" (1/1) ... [2019-09-20 13:31:19,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:19" (1/1) ... [2019-09-20 13:31:19,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:19" (1/1) ... [2019-09-20 13:31:19,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:19" (1/1) ... [2019-09-20 13:31:20,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:20,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:20,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:20,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:20,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:20,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:20,085 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:20,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:20,085 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:20,085 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:20,086 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:20,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:20,086 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:20,086 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:20,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:20,086 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:20,087 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:20,087 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:20,087 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:20,087 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:20,087 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:31:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:31:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:31:20,090 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:20,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:20,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:20,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:20,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:20,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:20,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:20,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:20,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:20,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:20,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:20,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:20,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:20,092 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:20,092 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:20,092 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:20,092 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:20,094 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:20,094 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:20,094 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:20,094 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:20,094 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:20,094 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:31:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:31:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:31:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:21,371 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:21,371 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:21,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:21 BoogieIcfgContainer [2019-09-20 13:31:21,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:21,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:21,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:21,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:21,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:19" (1/3) ... [2019-09-20 13:31:21,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c37eadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:21, skipping insertion in model container [2019-09-20 13:31:21,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:19" (2/3) ... [2019-09-20 13:31:21,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c37eadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:21, skipping insertion in model container [2019-09-20 13:31:21,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:21" (3/3) ... [2019-09-20 13:31:21,383 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product24.cil.c [2019-09-20 13:31:21,393 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:21,404 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:21,421 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:21,446 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:21,446 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:21,446 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:21,446 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:21,447 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:21,447 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:21,447 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:21,447 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:21,468 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states. [2019-09-20 13:31:21,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:21,482 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:21,484 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:21,486 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:21,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:21,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1996621703, now seen corresponding path program 1 times [2019-09-20 13:31:21,494 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:21,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:21,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:21,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:21,556 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:21,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:21,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:21,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:21,908 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:21,917 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:21,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:21,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:21,936 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 2 states. [2019-09-20 13:31:21,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:21,982 INFO L93 Difference]: Finished difference Result 153 states and 179 transitions. [2019-09-20 13:31:21,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:21,983 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:21,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:21,995 INFO L225 Difference]: With dead ends: 153 [2019-09-20 13:31:21,996 INFO L226 Difference]: Without dead ends: 142 [2019-09-20 13:31:21,997 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:22,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-09-20 13:31:22,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2019-09-20 13:31:22,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-09-20 13:31:22,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 167 transitions. [2019-09-20 13:31:22,049 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 167 transitions. Word has length 59 [2019-09-20 13:31:22,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:22,050 INFO L475 AbstractCegarLoop]: Abstraction has 142 states and 167 transitions. [2019-09-20 13:31:22,050 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:22,050 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 167 transitions. [2019-09-20 13:31:22,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:31:22,054 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:22,055 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:22,055 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:22,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:22,055 INFO L82 PathProgramCache]: Analyzing trace with hash -2025451369, now seen corresponding path program 1 times [2019-09-20 13:31:22,056 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:22,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:22,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:22,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:22,059 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:22,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:22,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:22,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:22,198 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:22,202 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:22,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:22,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:22,203 INFO L87 Difference]: Start difference. First operand 142 states and 167 transitions. Second operand 3 states. [2019-09-20 13:31:22,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:22,237 INFO L93 Difference]: Finished difference Result 133 states and 155 transitions. [2019-09-20 13:31:22,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:22,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:31:22,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:22,242 INFO L225 Difference]: With dead ends: 133 [2019-09-20 13:31:22,242 INFO L226 Difference]: Without dead ends: 133 [2019-09-20 13:31:22,243 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:22,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-09-20 13:31:22,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-09-20 13:31:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-09-20 13:31:22,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 155 transitions. [2019-09-20 13:31:22,259 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 155 transitions. Word has length 60 [2019-09-20 13:31:22,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:22,259 INFO L475 AbstractCegarLoop]: Abstraction has 133 states and 155 transitions. [2019-09-20 13:31:22,259 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:22,259 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 155 transitions. [2019-09-20 13:31:22,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:31:22,262 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:22,262 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:22,262 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:22,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:22,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1933806074, now seen corresponding path program 1 times [2019-09-20 13:31:22,263 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:22,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:22,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:22,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:22,266 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:22,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:22,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:22,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:22,442 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:22,443 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:22,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:22,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:22,444 INFO L87 Difference]: Start difference. First operand 133 states and 155 transitions. Second operand 7 states. [2019-09-20 13:31:23,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:23,021 INFO L93 Difference]: Finished difference Result 294 states and 354 transitions. [2019-09-20 13:31:23,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:31:23,022 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-20 13:31:23,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:23,026 INFO L225 Difference]: With dead ends: 294 [2019-09-20 13:31:23,026 INFO L226 Difference]: Without dead ends: 294 [2019-09-20 13:31:23,027 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:31:23,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-09-20 13:31:23,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 282. [2019-09-20 13:31:23,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2019-09-20 13:31:23,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 342 transitions. [2019-09-20 13:31:23,072 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 342 transitions. Word has length 65 [2019-09-20 13:31:23,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:23,073 INFO L475 AbstractCegarLoop]: Abstraction has 282 states and 342 transitions. [2019-09-20 13:31:23,073 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:23,073 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 342 transitions. [2019-09-20 13:31:23,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-20 13:31:23,080 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:23,083 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:23,084 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:23,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:23,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1344773583, now seen corresponding path program 1 times [2019-09-20 13:31:23,084 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:23,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:23,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:23,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:23,088 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:23,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:31:23,289 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:23,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:23,289 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:23,290 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:23,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:23,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:23,291 INFO L87 Difference]: Start difference. First operand 282 states and 342 transitions. Second operand 7 states. [2019-09-20 13:31:23,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:23,688 INFO L93 Difference]: Finished difference Result 202 states and 230 transitions. [2019-09-20 13:31:23,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:31:23,688 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2019-09-20 13:31:23,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:23,689 INFO L225 Difference]: With dead ends: 202 [2019-09-20 13:31:23,689 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:23,690 INFO L636 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 [2019-09-20 13:31:23,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:23,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:23,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:23,691 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2019-09-20 13:31:23,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:23,691 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:23,691 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:23,691 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:23,692 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:23,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:23 BoogieIcfgContainer [2019-09-20 13:31:23,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:23,702 INFO L168 Benchmark]: Toolchain (without parser) took 4492.91 ms. Allocated memory was 131.1 MB in the beginning and 267.4 MB in the end (delta: 136.3 MB). Free memory was 84.5 MB in the beginning and 156.8 MB in the end (delta: -72.3 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:23,703 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 131.1 MB. Free memory was 103.8 MB in the beginning and 103.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:23,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.88 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 84.3 MB in the beginning and 162.2 MB in the end (delta: -77.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:23,707 INFO L168 Benchmark]: Boogie Preprocessor took 88.58 ms. Allocated memory is still 198.7 MB. Free memory was 162.2 MB in the beginning and 157.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:23,709 INFO L168 Benchmark]: RCFGBuilder took 1366.83 ms. Allocated memory was 198.7 MB in the beginning and 219.2 MB in the end (delta: 20.4 MB). Free memory was 157.8 MB in the beginning and 188.5 MB in the end (delta: -30.7 MB). Peak memory consumption was 92.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:23,711 INFO L168 Benchmark]: TraceAbstraction took 2323.64 ms. Allocated memory was 219.2 MB in the beginning and 267.4 MB in the end (delta: 48.2 MB). Free memory was 188.5 MB in the beginning and 156.8 MB in the end (delta: 31.7 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:23,722 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 131.1 MB. Free memory was 103.8 MB in the beginning and 103.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.88 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 84.3 MB in the beginning and 162.2 MB in the end (delta: -77.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.58 ms. Allocated memory is still 198.7 MB. Free memory was 162.2 MB in the beginning and 157.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1366.83 ms. Allocated memory was 198.7 MB in the beginning and 219.2 MB in the end (delta: 20.4 MB). Free memory was 157.8 MB in the beginning and 188.5 MB in the end (delta: -30.7 MB). Peak memory consumption was 92.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2323.64 ms. Allocated memory was 219.2 MB in the beginning and 267.4 MB in the end (delta: 48.2 MB). Free memory was 188.5 MB in the beginning and 156.8 MB in the end (delta: 31.7 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 975]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 244 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 616 SDtfs, 360 SDslu, 917 SDs, 0 SdLazy, 446 SolverSat, 83 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 250 ConstructedInterpolants, 0 QuantifiedInterpolants, 26598 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...