java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:01,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:01,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:01,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:01,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:01,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:01,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:01,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:01,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:01,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:01,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:01,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:01,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:01,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:01,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:01,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:01,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:01,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:01,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:01,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:01,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:01,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:01,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:01,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:01,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:01,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:01,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:01,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:01,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:01,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:01,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:01,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:01,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:01,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:01,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:01,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:01,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:01,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:01,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:01,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:01,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:01,174 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:08:01,199 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:01,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:01,200 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:01,200 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:01,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:01,201 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:01,201 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:01,201 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:01,202 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:01,202 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:01,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:01,204 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:01,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:01,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:01,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:01,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:01,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:01,206 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:01,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:01,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:01,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:01,207 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:01,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:01,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:01,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:01,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:01,208 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:01,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:01,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:01,209 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:01,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:01,285 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:01,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:01,290 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:01,291 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:01,292 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2019-09-16 17:08:01,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad75922a2/6d0f1f89600546d8947b6427ebb4d56d/FLAGb8c75a76f [2019-09-16 17:08:01,888 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:01,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2019-09-16 17:08:01,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad75922a2/6d0f1f89600546d8947b6427ebb4d56d/FLAGb8c75a76f [2019-09-16 17:08:02,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad75922a2/6d0f1f89600546d8947b6427ebb4d56d [2019-09-16 17:08:02,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:02,276 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:02,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:02,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:02,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:02,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:02" (1/1) ... [2019-09-16 17:08:02,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d29c02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:02, skipping insertion in model container [2019-09-16 17:08:02,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:02" (1/1) ... [2019-09-16 17:08:02,294 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:02,345 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:02,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:02,837 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:03,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:03,065 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:03,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:03 WrapperNode [2019-09-16 17:08:03,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:03,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:03,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:03,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:03,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:03" (1/1) ... [2019-09-16 17:08:03,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:03" (1/1) ... [2019-09-16 17:08:03,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:03" (1/1) ... [2019-09-16 17:08:03,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:03" (1/1) ... [2019-09-16 17:08:03,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:03" (1/1) ... [2019-09-16 17:08:03,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:03" (1/1) ... [2019-09-16 17:08:03,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:03" (1/1) ... [2019-09-16 17:08:03,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:03,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:03,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:03,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:03,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:03,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:03,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:03,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:03,231 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:03,231 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:08:03,231 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:08:03,232 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:08:03,232 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:03,232 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:08:03,232 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:03,232 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:03,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:03,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:03,233 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:03,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:08:03,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:08:03,233 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:08:03,234 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:03,234 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:03,234 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:03,234 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:03,235 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:03,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:03,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:03,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:03,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:03,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:03,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:03,236 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:03,236 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:03,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:03,236 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:03,237 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:03,237 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:03,237 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:03,237 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:03,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:03,237 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:03,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:03,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:08:03,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:08:03,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:08:03,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:08:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:08:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:03,241 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:08:03,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:08:03,241 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:03,241 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:08:03,241 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:08:03,241 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:08:03,242 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:08:03,242 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:08:03,242 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:03,242 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:08:03,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:03,243 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:03,243 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:03,243 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:03,243 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:03,244 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:03,244 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:03,244 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:03,244 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:03,244 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:03,244 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:03,244 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:03,245 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:03,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:03,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:03,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:03,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:03,245 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:04,593 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:04,594 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:04,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:04 BoogieIcfgContainer [2019-09-16 17:08:04,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:04,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:04,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:04,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:04,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:02" (1/3) ... [2019-09-16 17:08:04,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3c38e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:04, skipping insertion in model container [2019-09-16 17:08:04,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:03" (2/3) ... [2019-09-16 17:08:04,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3c38e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:04, skipping insertion in model container [2019-09-16 17:08:04,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:04" (3/3) ... [2019-09-16 17:08:04,604 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2019-09-16 17:08:04,614 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:04,626 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:04,642 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:04,663 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:04,663 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:04,663 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:04,663 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:04,663 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:04,664 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:04,664 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:04,664 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:04,683 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2019-09-16 17:08:04,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:08:04,696 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:04,697 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:04,699 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:04,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:04,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1419538001, now seen corresponding path program 1 times [2019-09-16 17:08:04,707 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:04,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:04,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:04,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:04,755 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:05,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:05,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:05,046 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:05,052 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:05,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:05,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:05,070 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2019-09-16 17:08:05,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:05,111 INFO L93 Difference]: Finished difference Result 165 states and 195 transitions. [2019-09-16 17:08:05,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:05,113 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:08:05,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:05,126 INFO L225 Difference]: With dead ends: 165 [2019-09-16 17:08:05,126 INFO L226 Difference]: Without dead ends: 154 [2019-09-16 17:08:05,128 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:05,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-09-16 17:08:05,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-09-16 17:08:05,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-09-16 17:08:05,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 183 transitions. [2019-09-16 17:08:05,182 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 183 transitions. Word has length 46 [2019-09-16 17:08:05,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:05,183 INFO L475 AbstractCegarLoop]: Abstraction has 154 states and 183 transitions. [2019-09-16 17:08:05,183 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:05,183 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 183 transitions. [2019-09-16 17:08:05,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:08:05,187 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:05,187 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:05,188 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:05,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:05,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1353902391, now seen corresponding path program 1 times [2019-09-16 17:08:05,188 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:05,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:05,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:05,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:05,192 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:05,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:05,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:05,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:05,312 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:05,314 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:05,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:05,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:05,315 INFO L87 Difference]: Start difference. First operand 154 states and 183 transitions. Second operand 3 states. [2019-09-16 17:08:05,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:05,345 INFO L93 Difference]: Finished difference Result 145 states and 171 transitions. [2019-09-16 17:08:05,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:05,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:08:05,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:05,354 INFO L225 Difference]: With dead ends: 145 [2019-09-16 17:08:05,356 INFO L226 Difference]: Without dead ends: 145 [2019-09-16 17:08:05,357 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:05,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-09-16 17:08:05,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2019-09-16 17:08:05,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-09-16 17:08:05,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 171 transitions. [2019-09-16 17:08:05,381 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 171 transitions. Word has length 47 [2019-09-16 17:08:05,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:05,382 INFO L475 AbstractCegarLoop]: Abstraction has 145 states and 171 transitions. [2019-09-16 17:08:05,382 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:05,382 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 171 transitions. [2019-09-16 17:08:05,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:05,385 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:05,385 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:05,385 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:05,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:05,386 INFO L82 PathProgramCache]: Analyzing trace with hash -480372053, now seen corresponding path program 1 times [2019-09-16 17:08:05,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:05,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:05,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:05,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:05,389 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:05,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:05,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:05,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:05,541 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:05,542 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:05,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:05,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:05,543 INFO L87 Difference]: Start difference. First operand 145 states and 171 transitions. Second operand 7 states. [2019-09-16 17:08:06,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:06,000 INFO L93 Difference]: Finished difference Result 145 states and 170 transitions. [2019-09-16 17:08:06,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:06,001 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:08:06,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:06,004 INFO L225 Difference]: With dead ends: 145 [2019-09-16 17:08:06,004 INFO L226 Difference]: Without dead ends: 145 [2019-09-16 17:08:06,004 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:08:06,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-09-16 17:08:06,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2019-09-16 17:08:06,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-09-16 17:08:06,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 170 transitions. [2019-09-16 17:08:06,018 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 170 transitions. Word has length 52 [2019-09-16 17:08:06,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:06,018 INFO L475 AbstractCegarLoop]: Abstraction has 145 states and 170 transitions. [2019-09-16 17:08:06,018 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:06,019 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 170 transitions. [2019-09-16 17:08:06,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-16 17:08:06,022 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:06,022 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:06,023 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:06,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:06,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1922469070, now seen corresponding path program 1 times [2019-09-16 17:08:06,023 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:06,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:06,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:06,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:06,027 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:06,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:06,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:06,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:08:06,217 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:06,218 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:08:06,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:08:06,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:08:06,218 INFO L87 Difference]: Start difference. First operand 145 states and 170 transitions. Second operand 5 states. [2019-09-16 17:08:06,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:06,882 INFO L93 Difference]: Finished difference Result 259 states and 298 transitions. [2019-09-16 17:08:06,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:08:06,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-09-16 17:08:06,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:06,889 INFO L225 Difference]: With dead ends: 259 [2019-09-16 17:08:06,889 INFO L226 Difference]: Without dead ends: 259 [2019-09-16 17:08:06,890 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:08:06,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2019-09-16 17:08:06,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 240. [2019-09-16 17:08:06,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2019-09-16 17:08:06,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 272 transitions. [2019-09-16 17:08:06,935 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 272 transitions. Word has length 70 [2019-09-16 17:08:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:06,939 INFO L475 AbstractCegarLoop]: Abstraction has 240 states and 272 transitions. [2019-09-16 17:08:06,939 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:08:06,939 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 272 transitions. [2019-09-16 17:08:06,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-16 17:08:06,947 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:06,948 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:06,948 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:06,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:06,952 INFO L82 PathProgramCache]: Analyzing trace with hash 371744810, now seen corresponding path program 1 times [2019-09-16 17:08:06,952 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:06,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:06,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:06,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:06,958 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:07,127 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:07,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:07,127 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:07,129 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:07,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:07,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:07,130 INFO L87 Difference]: Start difference. First operand 240 states and 272 transitions. Second operand 6 states. [2019-09-16 17:08:07,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:07,372 INFO L93 Difference]: Finished difference Result 441 states and 501 transitions. [2019-09-16 17:08:07,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:07,374 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-09-16 17:08:07,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:07,382 INFO L225 Difference]: With dead ends: 441 [2019-09-16 17:08:07,383 INFO L226 Difference]: Without dead ends: 441 [2019-09-16 17:08:07,384 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:08:07,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2019-09-16 17:08:07,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 435. [2019-09-16 17:08:07,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2019-09-16 17:08:07,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 494 transitions. [2019-09-16 17:08:07,430 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 494 transitions. Word has length 84 [2019-09-16 17:08:07,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:07,431 INFO L475 AbstractCegarLoop]: Abstraction has 435 states and 494 transitions. [2019-09-16 17:08:07,431 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:07,431 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 494 transitions. [2019-09-16 17:08:07,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-16 17:08:07,433 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:07,434 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:07,434 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:07,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:07,436 INFO L82 PathProgramCache]: Analyzing trace with hash 861472934, now seen corresponding path program 1 times [2019-09-16 17:08:07,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:07,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:07,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:07,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:07,440 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:07,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:07,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:07,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:07,626 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:07,626 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:07,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:07,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:07,627 INFO L87 Difference]: Start difference. First operand 435 states and 494 transitions. Second operand 7 states. [2019-09-16 17:08:08,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:08,311 INFO L93 Difference]: Finished difference Result 467 states and 545 transitions. [2019-09-16 17:08:08,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:08:08,312 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2019-09-16 17:08:08,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:08,317 INFO L225 Difference]: With dead ends: 467 [2019-09-16 17:08:08,317 INFO L226 Difference]: Without dead ends: 467 [2019-09-16 17:08:08,318 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:08:08,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2019-09-16 17:08:08,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 435. [2019-09-16 17:08:08,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2019-09-16 17:08:08,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 493 transitions. [2019-09-16 17:08:08,343 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 493 transitions. Word has length 88 [2019-09-16 17:08:08,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:08,343 INFO L475 AbstractCegarLoop]: Abstraction has 435 states and 493 transitions. [2019-09-16 17:08:08,343 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:08,344 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 493 transitions. [2019-09-16 17:08:08,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-16 17:08:08,346 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:08,346 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:08,346 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:08,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:08,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1149093276, now seen corresponding path program 1 times [2019-09-16 17:08:08,347 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:08,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:08,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:08,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:08,351 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:08,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:08:08,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:08,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:08,427 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:08,427 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:08,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:08,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:08,428 INFO L87 Difference]: Start difference. First operand 435 states and 493 transitions. Second operand 6 states. [2019-09-16 17:08:08,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:08,465 INFO L93 Difference]: Finished difference Result 449 states and 507 transitions. [2019-09-16 17:08:08,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:08,465 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2019-09-16 17:08:08,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:08,468 INFO L225 Difference]: With dead ends: 449 [2019-09-16 17:08:08,468 INFO L226 Difference]: Without dead ends: 449 [2019-09-16 17:08:08,469 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:08,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2019-09-16 17:08:08,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 445. [2019-09-16 17:08:08,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2019-09-16 17:08:08,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 503 transitions. [2019-09-16 17:08:08,488 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 503 transitions. Word has length 104 [2019-09-16 17:08:08,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:08,489 INFO L475 AbstractCegarLoop]: Abstraction has 445 states and 503 transitions. [2019-09-16 17:08:08,489 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:08,489 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 503 transitions. [2019-09-16 17:08:08,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-16 17:08:08,491 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:08,491 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:08,491 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:08,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:08,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1502181658, now seen corresponding path program 1 times [2019-09-16 17:08:08,492 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:08,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:08,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:08,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:08,495 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:08,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:08:08,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:08,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:08:08,630 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:08,630 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:08:08,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:08:08,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:08:08,631 INFO L87 Difference]: Start difference. First operand 445 states and 503 transitions. Second operand 8 states. [2019-09-16 17:08:08,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:08,660 INFO L93 Difference]: Finished difference Result 459 states and 517 transitions. [2019-09-16 17:08:08,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:08,660 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2019-09-16 17:08:08,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:08,663 INFO L225 Difference]: With dead ends: 459 [2019-09-16 17:08:08,663 INFO L226 Difference]: Without dead ends: 459 [2019-09-16 17:08:08,664 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:08:08,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2019-09-16 17:08:08,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 453. [2019-09-16 17:08:08,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2019-09-16 17:08:08,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 511 transitions. [2019-09-16 17:08:08,681 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 511 transitions. Word has length 104 [2019-09-16 17:08:08,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:08,681 INFO L475 AbstractCegarLoop]: Abstraction has 453 states and 511 transitions. [2019-09-16 17:08:08,681 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:08:08,681 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 511 transitions. [2019-09-16 17:08:08,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-16 17:08:08,683 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:08,683 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:08,684 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:08,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:08,684 INFO L82 PathProgramCache]: Analyzing trace with hash -368991065, now seen corresponding path program 1 times [2019-09-16 17:08:08,684 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:08,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:08,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:08,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:08,687 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:08,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:08:08,760 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:08,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:08:08,760 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:08,761 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:08:08,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:08:08,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:08:08,761 INFO L87 Difference]: Start difference. First operand 453 states and 511 transitions. Second operand 4 states. [2019-09-16 17:08:09,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:09,004 INFO L93 Difference]: Finished difference Result 924 states and 1087 transitions. [2019-09-16 17:08:09,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:08:09,004 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2019-09-16 17:08:09,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:09,010 INFO L225 Difference]: With dead ends: 924 [2019-09-16 17:08:09,010 INFO L226 Difference]: Without dead ends: 924 [2019-09-16 17:08:09,010 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:08:09,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2019-09-16 17:08:09,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 909. [2019-09-16 17:08:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2019-09-16 17:08:09,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1055 transitions. [2019-09-16 17:08:09,042 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1055 transitions. Word has length 104 [2019-09-16 17:08:09,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:09,043 INFO L475 AbstractCegarLoop]: Abstraction has 909 states and 1055 transitions. [2019-09-16 17:08:09,043 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:08:09,043 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1055 transitions. [2019-09-16 17:08:09,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-16 17:08:09,045 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:09,046 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:09,046 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:09,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:09,046 INFO L82 PathProgramCache]: Analyzing trace with hash 38573473, now seen corresponding path program 1 times [2019-09-16 17:08:09,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:09,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:09,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:09,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:09,049 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:09,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-16 17:08:09,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:08:09,189 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:08:09,190 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-16 17:08:09,192 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [161], [164], [169], [175], [178], [188], [189], [201], [203], [208], [211], [212], [214], [219], [221], [222], [225], [226], [232], [236], [278], [281], [283], [286], [296], [299], [303], [304], [307], [308], [323], [326], [327], [328], [351], [353], [354], [421], [422], [427], [429], [432], [436], [438], [441], [443], [446], [459], [460], [461], [462], [463], [464], [465], [466], [467], [507], [508], [509], [510], [511], [512], [515], [519], [520], [521], [522], [523], [524], [527], [528], [529], [535], [536], [537], [538], [549], [550], [553], [555], [556], [561], [562], [563], [565], [566], [567], [568], [569] [2019-09-16 17:08:09,229 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:08:09,229 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:08:09,297 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:08:09,299 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. [2019-09-16 17:08:09,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:09,304 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:08:09,350 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:08:09,350 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:08:09,354 INFO L420 sIntCurrentIteration]: We unified 107 AI predicates to 107 [2019-09-16 17:08:09,354 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:08:09,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:08:09,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-16 17:08:09,355 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:09,356 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:09,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:09,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:09,356 INFO L87 Difference]: Start difference. First operand 909 states and 1055 transitions. Second operand 2 states. [2019-09-16 17:08:09,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:09,357 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:08:09,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:09,357 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 108 [2019-09-16 17:08:09,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:09,358 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:08:09,358 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:09,358 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:09,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:09,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:09,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:09,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:09,359 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2019-09-16 17:08:09,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:09,359 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:09,359 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:09,360 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:09,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:09,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:09 BoogieIcfgContainer [2019-09-16 17:08:09,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:09,368 INFO L168 Benchmark]: Toolchain (without parser) took 7090.67 ms. Allocated memory was 139.5 MB in the beginning and 328.2 MB in the end (delta: 188.7 MB). Free memory was 85.7 MB in the beginning and 137.3 MB in the end (delta: -51.6 MB). Peak memory consumption was 137.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:09,369 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:09,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.09 ms. Allocated memory was 139.5 MB in the beginning and 197.7 MB in the end (delta: 58.2 MB). Free memory was 85.5 MB in the beginning and 162.2 MB in the end (delta: -76.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:09,370 INFO L168 Benchmark]: Boogie Preprocessor took 87.88 ms. Allocated memory is still 197.7 MB. Free memory was 162.2 MB in the beginning and 157.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:09,372 INFO L168 Benchmark]: RCFGBuilder took 1440.62 ms. Allocated memory was 197.7 MB in the beginning and 221.8 MB in the end (delta: 24.1 MB). Free memory was 157.8 MB in the beginning and 186.5 MB in the end (delta: -28.7 MB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:09,372 INFO L168 Benchmark]: TraceAbstraction took 4768.59 ms. Allocated memory was 221.8 MB in the beginning and 328.2 MB in the end (delta: 106.4 MB). Free memory was 186.5 MB in the beginning and 137.3 MB in the end (delta: 49.2 MB). Peak memory consumption was 155.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:09,377 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 139.5 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 789.09 ms. Allocated memory was 139.5 MB in the beginning and 197.7 MB in the end (delta: 58.2 MB). Free memory was 85.5 MB in the beginning and 162.2 MB in the end (delta: -76.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.88 ms. Allocated memory is still 197.7 MB. Free memory was 162.2 MB in the beginning and 157.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1440.62 ms. Allocated memory was 197.7 MB in the beginning and 221.8 MB in the end (delta: 24.1 MB). Free memory was 157.8 MB in the beginning and 186.5 MB in the end (delta: -28.7 MB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4768.59 ms. Allocated memory was 221.8 MB in the beginning and 328.2 MB in the end (delta: 106.4 MB). Free memory was 186.5 MB in the beginning and 137.3 MB in the end (delta: 49.2 MB). Peak memory consumption was 155.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1005]: 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 43 procedures, 256 locations, 1 error locations. SAFE Result, 4.7s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1668 SDtfs, 921 SDslu, 3500 SDs, 0 SdLazy, 1207 SolverSat, 276 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=909occurred in iteration=9, 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, 1.02803738317757 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 82 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 807 NumberOfCodeBlocks, 807 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 797 ConstructedInterpolants, 0 QuantifiedInterpolants, 114319 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...