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_spec4_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:01,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:01,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:01,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:01,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:01,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:01,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:01,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:01,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:01,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:01,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:01,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:01,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:01,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:01,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:01,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:01,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:01,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:01,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:01,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:01,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:01,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:01,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:01,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:01,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:01,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:01,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:01,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:01,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:01,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:01,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:01,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:01,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:01,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:01,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:01,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:01,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:01,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:01,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:01,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:01,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:01,168 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 13:31:01,202 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:01,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:01,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:01,202 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:01,203 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:01,203 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:01,204 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:01,204 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:01,204 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:01,204 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:01,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:01,206 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:01,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:01,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:01,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:01,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:01,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:01,207 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:01,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:01,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:01,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:01,209 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:01,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:01,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:01,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:01,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:01,211 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:01,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:01,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:01,212 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:01,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:01,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:01,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:01,294 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:01,295 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:01,296 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2019-09-20 13:31:01,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13e775c2/654d49fe8ee74b9fbea04b3631655f05/FLAGcbf97c590 [2019-09-20 13:31:01,940 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:01,941 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2019-09-20 13:31:01,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13e775c2/654d49fe8ee74b9fbea04b3631655f05/FLAGcbf97c590 [2019-09-20 13:31:02,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13e775c2/654d49fe8ee74b9fbea04b3631655f05 [2019-09-20 13:31:02,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:02,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:02,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:02,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:02,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:02,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:02" (1/1) ... [2019-09-20 13:31:02,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23ac3fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:02, skipping insertion in model container [2019-09-20 13:31:02,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:02" (1/1) ... [2019-09-20 13:31:02,251 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:02,306 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:02,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:02,800 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:02,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:02,956 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:02,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:02 WrapperNode [2019-09-20 13:31:02,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:02,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:02,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:02,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:02,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:02" (1/1) ... [2019-09-20 13:31:02,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:02" (1/1) ... [2019-09-20 13:31:02,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:02" (1/1) ... [2019-09-20 13:31:02,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:02" (1/1) ... [2019-09-20 13:31:03,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:02" (1/1) ... [2019-09-20 13:31:03,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:02" (1/1) ... [2019-09-20 13:31:03,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:02" (1/1) ... [2019-09-20 13:31:03,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:03,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:03,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:03,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:03,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:02" (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 13:31:03,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:03,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:03,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:03,122 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:03,123 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:03,123 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:03,123 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:03,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:31:03,123 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:03,124 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:03,124 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:03,124 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:03,124 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:03,124 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:03,124 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:03,125 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:03,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:03,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:03,125 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:03,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:31:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:31:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:03,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:31:03,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:03,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:03,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:03,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:03,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:31:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:31:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:31:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:31:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:04,296 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:04,296 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:04,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:04 BoogieIcfgContainer [2019-09-20 13:31:04,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:04,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:04,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:04,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:04,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:02" (1/3) ... [2019-09-20 13:31:04,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564a7acb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:04, skipping insertion in model container [2019-09-20 13:31:04,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:02" (2/3) ... [2019-09-20 13:31:04,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564a7acb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:04, skipping insertion in model container [2019-09-20 13:31:04,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:04" (3/3) ... [2019-09-20 13:31:04,308 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2019-09-20 13:31:04,318 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:04,329 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:04,349 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:04,381 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:04,381 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:04,381 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:04,382 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:04,382 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:04,383 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:04,383 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:04,383 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:04,410 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2019-09-20 13:31:04,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:31:04,430 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:04,431 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:04,434 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:04,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:04,440 INFO L82 PathProgramCache]: Analyzing trace with hash -589768967, now seen corresponding path program 1 times [2019-09-20 13:31:04,443 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:04,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:04,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:04,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:04,497 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:04,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:04,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:04,834 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:04,843 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:04,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:04,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:04,863 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 2 states. [2019-09-20 13:31:04,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:04,920 INFO L93 Difference]: Finished difference Result 160 states and 186 transitions. [2019-09-20 13:31:04,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:04,922 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:31:04,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:04,937 INFO L225 Difference]: With dead ends: 160 [2019-09-20 13:31:04,938 INFO L226 Difference]: Without dead ends: 149 [2019-09-20 13:31:04,939 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 13:31:04,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-09-20 13:31:04,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2019-09-20 13:31:04,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-09-20 13:31:04,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 174 transitions. [2019-09-20 13:31:04,993 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 174 transitions. Word has length 46 [2019-09-20 13:31:04,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:04,994 INFO L475 AbstractCegarLoop]: Abstraction has 149 states and 174 transitions. [2019-09-20 13:31:04,994 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 174 transitions. [2019-09-20 13:31:04,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:31:04,998 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:04,998 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:04,999 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:04,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:04,999 INFO L82 PathProgramCache]: Analyzing trace with hash -211037911, now seen corresponding path program 1 times [2019-09-20 13:31:04,999 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:05,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:05,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:05,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:05,003 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:05,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:05,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:05,152 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:05,154 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:05,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:05,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:05,156 INFO L87 Difference]: Start difference. First operand 149 states and 174 transitions. Second operand 3 states. [2019-09-20 13:31:05,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:05,189 INFO L93 Difference]: Finished difference Result 140 states and 162 transitions. [2019-09-20 13:31:05,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:05,190 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:31:05,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:05,195 INFO L225 Difference]: With dead ends: 140 [2019-09-20 13:31:05,195 INFO L226 Difference]: Without dead ends: 140 [2019-09-20 13:31:05,196 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 13:31:05,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-09-20 13:31:05,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-09-20 13:31:05,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-09-20 13:31:05,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 162 transitions. [2019-09-20 13:31:05,216 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 162 transitions. Word has length 47 [2019-09-20 13:31:05,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:05,216 INFO L475 AbstractCegarLoop]: Abstraction has 140 states and 162 transitions. [2019-09-20 13:31:05,217 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:05,217 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 162 transitions. [2019-09-20 13:31:05,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:31:05,219 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:05,219 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:05,219 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:05,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:05,220 INFO L82 PathProgramCache]: Analyzing trace with hash 607971640, now seen corresponding path program 1 times [2019-09-20 13:31:05,220 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:05,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:05,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:05,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:05,223 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:05,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:05,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:05,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:05,420 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:05,421 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:05,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:05,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:05,422 INFO L87 Difference]: Start difference. First operand 140 states and 162 transitions. Second operand 7 states. [2019-09-20 13:31:05,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:05,965 INFO L93 Difference]: Finished difference Result 306 states and 362 transitions. [2019-09-20 13:31:05,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:31:05,965 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-20 13:31:05,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:05,970 INFO L225 Difference]: With dead ends: 306 [2019-09-20 13:31:05,970 INFO L226 Difference]: Without dead ends: 306 [2019-09-20 13:31:05,971 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 13:31:05,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-09-20 13:31:06,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 298. [2019-09-20 13:31:06,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2019-09-20 13:31:06,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 356 transitions. [2019-09-20 13:31:06,025 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 356 transitions. Word has length 51 [2019-09-20 13:31:06,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:06,026 INFO L475 AbstractCegarLoop]: Abstraction has 298 states and 356 transitions. [2019-09-20 13:31:06,026 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:06,026 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 356 transitions. [2019-09-20 13:31:06,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:31:06,033 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:06,033 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:06,033 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:06,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:06,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1795694260, now seen corresponding path program 1 times [2019-09-20 13:31:06,036 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:06,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:06,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:06,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:06,040 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:06,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:06,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:31:06,227 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:06,228 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:31:06,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:31:06,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:31:06,229 INFO L87 Difference]: Start difference. First operand 298 states and 356 transitions. Second operand 10 states. [2019-09-20 13:31:07,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:07,023 INFO L93 Difference]: Finished difference Result 798 states and 993 transitions. [2019-09-20 13:31:07,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:31:07,023 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-20 13:31:07,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:07,038 INFO L225 Difference]: With dead ends: 798 [2019-09-20 13:31:07,039 INFO L226 Difference]: Without dead ends: 798 [2019-09-20 13:31:07,040 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-20 13:31:07,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2019-09-20 13:31:07,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 786. [2019-09-20 13:31:07,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2019-09-20 13:31:07,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 972 transitions. [2019-09-20 13:31:07,135 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 972 transitions. Word has length 57 [2019-09-20 13:31:07,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:07,136 INFO L475 AbstractCegarLoop]: Abstraction has 786 states and 972 transitions. [2019-09-20 13:31:07,136 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:31:07,137 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 972 transitions. [2019-09-20 13:31:07,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-20 13:31:07,144 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:07,145 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:07,145 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:07,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:07,145 INFO L82 PathProgramCache]: Analyzing trace with hash 2070558330, now seen corresponding path program 1 times [2019-09-20 13:31:07,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:07,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:07,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:07,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:07,149 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:07,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:07,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:07,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:31:07,248 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:07,248 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:31:07,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:31:07,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:07,249 INFO L87 Difference]: Start difference. First operand 786 states and 972 transitions. Second operand 4 states. [2019-09-20 13:31:07,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:07,638 INFO L93 Difference]: Finished difference Result 1176 states and 1531 transitions. [2019-09-20 13:31:07,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:31:07,640 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-09-20 13:31:07,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:07,647 INFO L225 Difference]: With dead ends: 1176 [2019-09-20 13:31:07,647 INFO L226 Difference]: Without dead ends: 1176 [2019-09-20 13:31:07,647 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:31:07,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2019-09-20 13:31:07,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1041. [2019-09-20 13:31:07,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2019-09-20 13:31:07,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1298 transitions. [2019-09-20 13:31:07,703 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1298 transitions. Word has length 61 [2019-09-20 13:31:07,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:07,703 INFO L475 AbstractCegarLoop]: Abstraction has 1041 states and 1298 transitions. [2019-09-20 13:31:07,703 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:31:07,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1298 transitions. [2019-09-20 13:31:07,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:31:07,706 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:07,707 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-20 13:31:07,707 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:07,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:07,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1347234794, now seen corresponding path program 1 times [2019-09-20 13:31:07,707 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:07,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:07,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:07,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:07,710 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-20 13:31:07,839 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:07,839 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:07,840 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2019-09-20 13:31:07,843 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [107], [109], [110], [122], [164], [173], [177], [181], [184], [189], [195], [197], [200], [202], [205], [240], [241], [258], [265], [268], [325], [329], [330], [333], [334], [335], [428], [429], [439], [447], [448], [449], [450], [451], [453], [454], [455], [456], [457], [458], [459], [460], [461], [505], [506], [509], [510], [511], [512], [525], [526], [541], [549], [550], [551] [2019-09-20 13:31:07,882 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:07,883 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:07,959 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:07,961 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-20 13:31:07,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:07,967 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:08,010 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:08,010 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:08,013 INFO L420 sIntCurrentIteration]: We unified 87 AI predicates to 87 [2019-09-20 13:31:08,013 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:08,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:08,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-20 13:31:08,015 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:08,015 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:08,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:08,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:08,016 INFO L87 Difference]: Start difference. First operand 1041 states and 1298 transitions. Second operand 2 states. [2019-09-20 13:31:08,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:08,017 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:08,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:08,017 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 88 [2019-09-20 13:31:08,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:08,017 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:08,017 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:08,018 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 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 13:31:08,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:08,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:08,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:08,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:08,019 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2019-09-20 13:31:08,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:08,019 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:08,019 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:08,020 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:08,020 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:08,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:08 BoogieIcfgContainer [2019-09-20 13:31:08,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:08,028 INFO L168 Benchmark]: Toolchain (without parser) took 5792.92 ms. Allocated memory was 137.9 MB in the beginning and 270.5 MB in the end (delta: 132.6 MB). Free memory was 83.6 MB in the beginning and 171.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 44.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:08,029 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 137.9 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:08,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.43 ms. Allocated memory was 137.9 MB in the beginning and 197.1 MB in the end (delta: 59.2 MB). Free memory was 83.3 MB in the beginning and 161.6 MB in the end (delta: -78.3 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:08,031 INFO L168 Benchmark]: Boogie Preprocessor took 106.01 ms. Allocated memory is still 197.1 MB. Free memory was 161.6 MB in the beginning and 157.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:08,032 INFO L168 Benchmark]: RCFGBuilder took 1234.78 ms. Allocated memory was 197.1 MB in the beginning and 218.1 MB in the end (delta: 21.0 MB). Free memory was 157.2 MB in the beginning and 187.3 MB in the end (delta: -30.1 MB). Peak memory consumption was 92.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:08,033 INFO L168 Benchmark]: TraceAbstraction took 3725.85 ms. Allocated memory was 218.1 MB in the beginning and 270.5 MB in the end (delta: 52.4 MB). Free memory was 187.3 MB in the beginning and 171.8 MB in the end (delta: 15.5 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:08,037 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 137.9 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.43 ms. Allocated memory was 137.9 MB in the beginning and 197.1 MB in the end (delta: 59.2 MB). Free memory was 83.3 MB in the beginning and 161.6 MB in the end (delta: -78.3 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.01 ms. Allocated memory is still 197.1 MB. Free memory was 161.6 MB in the beginning and 157.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1234.78 ms. Allocated memory was 197.1 MB in the beginning and 218.1 MB in the end (delta: 21.0 MB). Free memory was 157.2 MB in the beginning and 187.3 MB in the end (delta: -30.1 MB). Peak memory consumption was 92.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3725.85 ms. Allocated memory was 218.1 MB in the beginning and 270.5 MB in the end (delta: 52.4 MB). Free memory was 187.3 MB in the beginning and 171.8 MB in the end (delta: 15.5 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 620]: 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, 248 locations, 1 error locations. SAFE Result, 3.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 892 SDtfs, 743 SDslu, 2072 SDs, 0 SdLazy, 777 SolverSat, 136 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1041occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.0804597701149425 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 155 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 344 ConstructedInterpolants, 0 QuantifiedInterpolants, 42856 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 20/23 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...