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_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:58:33,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:33,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:33,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:33,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:33,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:33,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:33,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:33,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:33,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:33,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:33,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:33,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:33,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:33,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:33,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:33,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:33,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:33,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:33,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:33,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:33,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:33,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:33,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:33,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:33,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:33,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:33,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:33,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:33,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:33,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:33,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:33,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:33,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:33,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:33,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:33,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:33,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:33,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:33,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:33,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:33,143 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:58:33,166 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:33,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:33,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:33,167 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:33,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:33,168 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:33,169 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:33,169 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:33,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:33,169 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:33,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:33,172 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:33,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:33,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:33,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:33,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:33,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:33,173 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:33,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:33,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:33,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:33,174 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:33,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:33,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:33,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:33,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:33,175 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:33,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:33,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:33,176 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:33,232 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:33,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:33,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:33,259 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:33,260 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:33,261 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product57.cil.c [2019-10-03 02:58:33,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93139e6bb/0263302bd995465ab866aedb12957001/FLAG6aaea671d [2019-10-03 02:58:33,949 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:33,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product57.cil.c [2019-10-03 02:58:33,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93139e6bb/0263302bd995465ab866aedb12957001/FLAG6aaea671d [2019-10-03 02:58:34,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93139e6bb/0263302bd995465ab866aedb12957001 [2019-10-03 02:58:34,150 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:34,151 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:34,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:34,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:34,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:34,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:34,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134703a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34, skipping insertion in model container [2019-10-03 02:58:34,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:34,168 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:34,226 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:34,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:34,814 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:34,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:34,997 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:34,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34 WrapperNode [2019-10-03 02:58:34,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:34,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:34,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:34,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:35,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:35,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:35,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:35,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:35,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:35,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:35,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:35,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:35,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:35,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:35,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:35,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:35,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:35,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:35,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:58:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:58:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:35,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:35,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:35,234 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:35,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:58:35,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:58:35,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:35,236 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:35,236 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:35,236 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:35,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:35,237 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:35,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:35,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:58:35,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:58:35,238 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:35,238 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:35,239 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:35,239 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:35,239 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:35,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:35,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:35,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:35,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:35,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:35,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:35,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:35,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:35,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:35,243 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:35,243 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:35,243 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:35,243 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:35,245 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:35,245 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:35,245 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:58:35,245 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:58:35,245 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:35,245 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:58:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:58:35,247 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:35,247 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:58:35,247 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:58:35,247 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:35,249 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:35,251 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:35,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:35,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:36,556 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:36,557 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:36,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:36 BoogieIcfgContainer [2019-10-03 02:58:36,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:36,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:36,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:36,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:36,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:34" (1/3) ... [2019-10-03 02:58:36,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a8b1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:36, skipping insertion in model container [2019-10-03 02:58:36,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (2/3) ... [2019-10-03 02:58:36,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a8b1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:36, skipping insertion in model container [2019-10-03 02:58:36,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:36" (3/3) ... [2019-10-03 02:58:36,567 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2019-10-03 02:58:36,577 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:36,587 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:36,606 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:36,635 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:36,636 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:36,636 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:36,636 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:36,636 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:36,636 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:36,637 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:36,637 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:36,659 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2019-10-03 02:58:36,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:58:36,674 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:36,678 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:36,681 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:36,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:36,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1827061433, now seen corresponding path program 1 times [2019-10-03 02:58:36,690 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:36,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:36,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:36,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:36,758 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:37,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:37,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:37,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:37,070 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:37,076 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:37,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:37,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:37,095 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 2 states. [2019-10-03 02:58:37,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:37,127 INFO L93 Difference]: Finished difference Result 154 states and 178 transitions. [2019-10-03 02:58:37,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:37,129 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:58:37,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:37,142 INFO L225 Difference]: With dead ends: 154 [2019-10-03 02:58:37,142 INFO L226 Difference]: Without dead ends: 143 [2019-10-03 02:58:37,145 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:37,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-10-03 02:58:37,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2019-10-03 02:58:37,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-10-03 02:58:37,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 166 transitions. [2019-10-03 02:58:37,202 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 166 transitions. Word has length 46 [2019-10-03 02:58:37,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:37,203 INFO L475 AbstractCegarLoop]: Abstraction has 143 states and 166 transitions. [2019-10-03 02:58:37,203 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:37,203 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2019-10-03 02:58:37,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:58:37,206 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:37,207 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:37,207 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:37,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:37,208 INFO L82 PathProgramCache]: Analyzing trace with hash 632131827, now seen corresponding path program 1 times [2019-10-03 02:58:37,208 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:37,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:37,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:37,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:37,212 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:37,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:37,351 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:37,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:37,352 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:37,356 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:37,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:37,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:37,357 INFO L87 Difference]: Start difference. First operand 143 states and 166 transitions. Second operand 3 states. [2019-10-03 02:58:37,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:37,393 INFO L93 Difference]: Finished difference Result 134 states and 154 transitions. [2019-10-03 02:58:37,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:37,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:58:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:37,399 INFO L225 Difference]: With dead ends: 134 [2019-10-03 02:58:37,399 INFO L226 Difference]: Without dead ends: 134 [2019-10-03 02:58:37,402 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:37,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-10-03 02:58:37,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-10-03 02:58:37,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-03 02:58:37,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 154 transitions. [2019-10-03 02:58:37,434 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 154 transitions. Word has length 47 [2019-10-03 02:58:37,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:37,435 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 154 transitions. [2019-10-03 02:58:37,435 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:37,435 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 154 transitions. [2019-10-03 02:58:37,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:58:37,439 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:37,439 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:37,439 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:37,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:37,439 INFO L82 PathProgramCache]: Analyzing trace with hash 880596518, now seen corresponding path program 1 times [2019-10-03 02:58:37,440 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:37,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:37,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:37,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:37,443 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:37,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:37,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:37,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:37,623 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:37,623 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:37,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:37,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:37,624 INFO L87 Difference]: Start difference. First operand 134 states and 154 transitions. Second operand 7 states. [2019-10-03 02:58:37,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:37,933 INFO L93 Difference]: Finished difference Result 134 states and 153 transitions. [2019-10-03 02:58:37,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:58:37,934 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-03 02:58:37,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:37,936 INFO L225 Difference]: With dead ends: 134 [2019-10-03 02:58:37,938 INFO L226 Difference]: Without dead ends: 134 [2019-10-03 02:58:37,938 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:37,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-10-03 02:58:37,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-10-03 02:58:37,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-03 02:58:37,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 153 transitions. [2019-10-03 02:58:37,953 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 153 transitions. Word has length 51 [2019-10-03 02:58:37,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:37,954 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 153 transitions. [2019-10-03 02:58:37,954 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:37,954 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 153 transitions. [2019-10-03 02:58:37,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-03 02:58:37,958 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:37,958 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:37,959 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:37,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:37,960 INFO L82 PathProgramCache]: Analyzing trace with hash -316946775, now seen corresponding path program 1 times [2019-10-03 02:58:37,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:37,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:37,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:37,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:37,963 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:38,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:38,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:38,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:58:38,113 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:38,113 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:58:38,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:58:38,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:58:38,114 INFO L87 Difference]: Start difference. First operand 134 states and 153 transitions. Second operand 5 states. [2019-10-03 02:58:38,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:38,687 INFO L93 Difference]: Finished difference Result 230 states and 264 transitions. [2019-10-03 02:58:38,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:58:38,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-10-03 02:58:38,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:38,696 INFO L225 Difference]: With dead ends: 230 [2019-10-03 02:58:38,696 INFO L226 Difference]: Without dead ends: 230 [2019-10-03 02:58:38,696 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:58:38,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-10-03 02:58:38,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 212. [2019-10-03 02:58:38,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-10-03 02:58:38,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 240 transitions. [2019-10-03 02:58:38,746 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 240 transitions. Word has length 64 [2019-10-03 02:58:38,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:38,747 INFO L475 AbstractCegarLoop]: Abstraction has 212 states and 240 transitions. [2019-10-03 02:58:38,747 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:58:38,747 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 240 transitions. [2019-10-03 02:58:38,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-03 02:58:38,751 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:38,752 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:38,752 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:38,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:38,752 INFO L82 PathProgramCache]: Analyzing trace with hash 924041624, now seen corresponding path program 1 times [2019-10-03 02:58:38,752 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:38,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:38,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:38,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:38,756 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:38,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:38,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:38,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-03 02:58:38,939 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:38,941 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:58:38,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:58:38,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:38,942 INFO L87 Difference]: Start difference. First operand 212 states and 240 transitions. Second operand 10 states. [2019-10-03 02:58:39,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:39,673 INFO L93 Difference]: Finished difference Result 498 states and 588 transitions. [2019-10-03 02:58:39,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-03 02:58:39,673 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2019-10-03 02:58:39,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:39,679 INFO L225 Difference]: With dead ends: 498 [2019-10-03 02:58:39,679 INFO L226 Difference]: Without dead ends: 498 [2019-10-03 02:58:39,680 INFO L640 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 [2019-10-03 02:58:39,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2019-10-03 02:58:39,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 488. [2019-10-03 02:58:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2019-10-03 02:58:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 571 transitions. [2019-10-03 02:58:39,712 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 571 transitions. Word has length 78 [2019-10-03 02:58:39,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:39,712 INFO L475 AbstractCegarLoop]: Abstraction has 488 states and 571 transitions. [2019-10-03 02:58:39,712 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:58:39,712 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 571 transitions. [2019-10-03 02:58:39,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-03 02:58:39,718 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:39,718 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:39,718 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:39,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:39,719 INFO L82 PathProgramCache]: Analyzing trace with hash -2049323846, now seen corresponding path program 1 times [2019-10-03 02:58:39,719 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:39,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:39,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:39,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:39,722 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:39,822 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-03 02:58:39,823 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:58:39,823 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:58:39,824 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2019-10-03 02:58:39,826 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [113], [129], [132], [134], [135], [150], [153], [154], [155], [164], [168], [172], [175], [180], [186], [188], [191], [206], [207], [219], [221], [226], [229], [230], [232], [235], [239], [240], [241], [242], [248], [252], [258], [285], [286], [294], [297], [299], [302], [305], [312], [315], [319], [320], [323], [324], [325], [348], [350], [351], [418], [419], [429], [437], [438], [439], [440], [441], [443], [444], [445], [446], [447], [448], [449], [450], [451], [491], [492], [493], [494], [497], [498], [501], [502], [503], [504], [505], [506], [509], [510], [511], [512], [517], [518], [519], [520], [521], [522], [527], [529], [530], [535], [536], [537] [2019-10-03 02:58:39,877 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:58:39,878 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:58:39,979 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:58:39,981 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. [2019-10-03 02:58:39,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:39,986 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:58:40,075 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:58:40,076 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:58:40,080 INFO L420 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2019-10-03 02:58:40,081 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:58:40,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:58:40,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-10-03 02:58:40,082 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:40,085 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:40,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:40,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:40,086 INFO L87 Difference]: Start difference. First operand 488 states and 571 transitions. Second operand 2 states. [2019-10-03 02:58:40,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:40,087 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:58:40,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:40,087 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-10-03 02:58:40,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:40,088 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:58:40,088 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:40,088 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:40,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:40,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:40,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:40,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:40,090 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2019-10-03 02:58:40,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:40,090 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:40,090 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:40,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:40,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:40,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:40 BoogieIcfgContainer [2019-10-03 02:58:40,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:40,103 INFO L168 Benchmark]: Toolchain (without parser) took 5950.07 ms. Allocated memory was 131.6 MB in the beginning and 266.9 MB in the end (delta: 135.3 MB). Free memory was 86.8 MB in the beginning and 168.8 MB in the end (delta: -82.1 MB). Peak memory consumption was 53.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:40,104 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 131.6 MB. Free memory is still 105.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:58:40,106 INFO L168 Benchmark]: CACSL2BoogieTranslator took 845.53 ms. Allocated memory was 131.6 MB in the beginning and 199.2 MB in the end (delta: 67.6 MB). Free memory was 86.3 MB in the beginning and 162.9 MB in the end (delta: -76.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:40,108 INFO L168 Benchmark]: Boogie Preprocessor took 129.78 ms. Allocated memory is still 199.2 MB. Free memory was 162.9 MB in the beginning and 159.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:40,110 INFO L168 Benchmark]: RCFGBuilder took 1427.14 ms. Allocated memory was 199.2 MB in the beginning and 220.7 MB in the end (delta: 21.5 MB). Free memory was 159.2 MB in the beginning and 189.5 MB in the end (delta: -30.4 MB). Peak memory consumption was 92.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:40,111 INFO L168 Benchmark]: TraceAbstraction took 3539.88 ms. Allocated memory was 220.7 MB in the beginning and 266.9 MB in the end (delta: 46.1 MB). Free memory was 189.5 MB in the beginning and 168.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:40,120 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 131.6 MB. Free memory is still 105.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 845.53 ms. Allocated memory was 131.6 MB in the beginning and 199.2 MB in the end (delta: 67.6 MB). Free memory was 86.3 MB in the beginning and 162.9 MB in the end (delta: -76.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.78 ms. Allocated memory is still 199.2 MB. Free memory was 162.9 MB in the beginning and 159.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1427.14 ms. Allocated memory was 199.2 MB in the beginning and 220.7 MB in the end (delta: 21.5 MB). Free memory was 159.2 MB in the beginning and 189.5 MB in the end (delta: -30.4 MB). Peak memory consumption was 92.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3539.88 ms. Allocated memory was 220.7 MB in the beginning and 266.9 MB in the end (delta: 46.1 MB). Free memory was 189.5 MB in the beginning and 168.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 969]: 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 41 procedures, 242 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 838 SDtfs, 584 SDslu, 1816 SDs, 0 SdLazy, 734 SolverSat, 160 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 205 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=488occurred 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, 0.8741721854304636 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 432 ConstructedInterpolants, 0 QuantifiedInterpolants, 55962 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 38/47 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...