java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:08,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:08,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:08,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:08,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:08,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:08,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:08,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:08,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:08,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:08,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:08,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:08,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:08,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:08,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:08,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:08,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:08,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:08,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:08,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:08,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:08,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:08,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:08,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:08,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:08,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:08,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:08,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:08,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:08,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:08,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:08,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:08,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:08,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:08,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:08,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:08,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:08,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:08,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:08,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:08,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:08,190 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:30:08,205 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:08,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:08,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:08,206 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:08,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:08,207 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:08,207 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:08,207 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:08,207 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:08,207 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:08,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:08,208 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:08,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:08,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:08,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:08,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:08,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:08,209 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:08,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:08,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:08,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:08,210 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:08,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:08,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:08,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:08,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:08,211 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:08,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:08,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:08,212 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:08,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:08,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:08,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:08,256 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:08,256 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:08,257 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2019-09-20 13:30:08,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/970730df1/29bb32f90b7c4f86941800eb3531224a/FLAGde9ec94b7 [2019-09-20 13:30:08,875 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:08,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2019-09-20 13:30:08,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/970730df1/29bb32f90b7c4f86941800eb3531224a/FLAGde9ec94b7 [2019-09-20 13:30:09,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/970730df1/29bb32f90b7c4f86941800eb3531224a [2019-09-20 13:30:09,178 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:09,179 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:09,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:09,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:09,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:09,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:09" (1/1) ... [2019-09-20 13:30:09,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e757327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:09, skipping insertion in model container [2019-09-20 13:30:09,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:09" (1/1) ... [2019-09-20 13:30:09,199 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:09,256 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:09,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:09,748 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:09,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:09,878 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:09,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:09 WrapperNode [2019-09-20 13:30:09,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:09,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:09,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:09,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:09,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:09" (1/1) ... [2019-09-20 13:30:09,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:09" (1/1) ... [2019-09-20 13:30:09,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:09" (1/1) ... [2019-09-20 13:30:09,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:09" (1/1) ... [2019-09-20 13:30:09,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:09" (1/1) ... [2019-09-20 13:30:09,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:09" (1/1) ... [2019-09-20 13:30:09,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:09" (1/1) ... [2019-09-20 13:30:09,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:09,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:09,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:09,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:09,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:10,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:10,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:10,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:10,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:10,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:10,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:30:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:30:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:30:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:30:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:11,206 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:11,207 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:11,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:11 BoogieIcfgContainer [2019-09-20 13:30:11,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:11,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:11,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:11,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:11,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:09" (1/3) ... [2019-09-20 13:30:11,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ae5c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:11, skipping insertion in model container [2019-09-20 13:30:11,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:09" (2/3) ... [2019-09-20 13:30:11,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ae5c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:11, skipping insertion in model container [2019-09-20 13:30:11,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:11" (3/3) ... [2019-09-20 13:30:11,217 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2019-09-20 13:30:11,242 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:11,251 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:11,267 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:11,305 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:11,306 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:11,306 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:11,306 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:11,306 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:11,306 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:11,307 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:11,307 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:11,337 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2019-09-20 13:30:11,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:11,350 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:11,351 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:11,354 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:11,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:11,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1698741088, now seen corresponding path program 1 times [2019-09-20 13:30:11,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:11,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:11,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:11,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:11,415 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:11,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:11,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:11,806 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:11,807 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:11,813 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:11,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:11,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:11,833 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 2 states. [2019-09-20 13:30:11,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:11,893 INFO L93 Difference]: Finished difference Result 143 states and 167 transitions. [2019-09-20 13:30:11,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:11,895 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:11,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:11,929 INFO L225 Difference]: With dead ends: 143 [2019-09-20 13:30:11,929 INFO L226 Difference]: Without dead ends: 132 [2019-09-20 13:30:11,935 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:11,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-09-20 13:30:12,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-09-20 13:30:12,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-09-20 13:30:12,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 155 transitions. [2019-09-20 13:30:12,037 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 155 transitions. Word has length 51 [2019-09-20 13:30:12,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:12,038 INFO L475 AbstractCegarLoop]: Abstraction has 132 states and 155 transitions. [2019-09-20 13:30:12,038 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:12,038 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 155 transitions. [2019-09-20 13:30:12,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:12,051 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:12,051 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] [2019-09-20 13:30:12,052 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:12,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:12,054 INFO L82 PathProgramCache]: Analyzing trace with hash 160126664, now seen corresponding path program 1 times [2019-09-20 13:30:12,054 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:12,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:12,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:12,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:12,057 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:12,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:12,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:12,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:12,243 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:12,244 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:12,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:12,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:12,245 INFO L87 Difference]: Start difference. First operand 132 states and 155 transitions. Second operand 3 states. [2019-09-20 13:30:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:12,261 INFO L93 Difference]: Finished difference Result 123 states and 143 transitions. [2019-09-20 13:30:12,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:12,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:12,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:12,264 INFO L225 Difference]: With dead ends: 123 [2019-09-20 13:30:12,264 INFO L226 Difference]: Without dead ends: 123 [2019-09-20 13:30:12,265 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:12,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-20 13:30:12,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-09-20 13:30:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-20 13:30:12,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2019-09-20 13:30:12,276 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 52 [2019-09-20 13:30:12,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:12,277 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2019-09-20 13:30:12,277 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:12,277 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2019-09-20 13:30:12,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:12,279 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:12,279 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:12,280 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:12,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:12,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1051645430, now seen corresponding path program 1 times [2019-09-20 13:30:12,280 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:12,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:12,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:12,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:12,283 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:12,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:12,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:12,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:12,416 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:12,416 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:12,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:12,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:12,417 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 7 states. [2019-09-20 13:30:12,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:12,786 INFO L93 Difference]: Finished difference Result 123 states and 142 transitions. [2019-09-20 13:30:12,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:12,787 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:30:12,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:12,793 INFO L225 Difference]: With dead ends: 123 [2019-09-20 13:30:12,793 INFO L226 Difference]: Without dead ends: 123 [2019-09-20 13:30:12,794 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:12,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-20 13:30:12,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-09-20 13:30:12,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-20 13:30:12,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2019-09-20 13:30:12,810 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 57 [2019-09-20 13:30:12,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:12,812 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2019-09-20 13:30:12,812 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:12,813 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2019-09-20 13:30:12,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-20 13:30:12,817 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:12,817 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] [2019-09-20 13:30:12,817 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:12,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:12,818 INFO L82 PathProgramCache]: Analyzing trace with hash 23828646, now seen corresponding path program 1 times [2019-09-20 13:30:12,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:12,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:12,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:12,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:12,821 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:12,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:12,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:12,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:30:12,984 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:12,985 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:30:12,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:30:12,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:30:12,985 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 5 states. [2019-09-20 13:30:13,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:13,574 INFO L93 Difference]: Finished difference Result 224 states and 261 transitions. [2019-09-20 13:30:13,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:13,575 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-09-20 13:30:13,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:13,579 INFO L225 Difference]: With dead ends: 224 [2019-09-20 13:30:13,580 INFO L226 Difference]: Without dead ends: 224 [2019-09-20 13:30:13,583 INFO L636 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 [2019-09-20 13:30:13,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2019-09-20 13:30:13,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 205. [2019-09-20 13:30:13,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2019-09-20 13:30:13,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 235 transitions. [2019-09-20 13:30:13,619 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 235 transitions. Word has length 70 [2019-09-20 13:30:13,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:13,619 INFO L475 AbstractCegarLoop]: Abstraction has 205 states and 235 transitions. [2019-09-20 13:30:13,620 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:30:13,620 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 235 transitions. [2019-09-20 13:30:13,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-20 13:30:13,622 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:13,622 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] [2019-09-20 13:30:13,622 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:13,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:13,623 INFO L82 PathProgramCache]: Analyzing trace with hash 765865706, now seen corresponding path program 1 times [2019-09-20 13:30:13,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:13,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:13,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:13,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:13,629 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:13,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:13,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:13,750 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:13,751 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:13,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:13,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:13,752 INFO L87 Difference]: Start difference. First operand 205 states and 235 transitions. Second operand 6 states. [2019-09-20 13:30:13,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:13,957 INFO L93 Difference]: Finished difference Result 364 states and 417 transitions. [2019-09-20 13:30:13,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:13,958 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-09-20 13:30:13,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:13,963 INFO L225 Difference]: With dead ends: 364 [2019-09-20 13:30:13,963 INFO L226 Difference]: Without dead ends: 364 [2019-09-20 13:30:13,964 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 [2019-09-20 13:30:13,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-09-20 13:30:14,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 358. [2019-09-20 13:30:14,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2019-09-20 13:30:14,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 410 transitions. [2019-09-20 13:30:14,010 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 410 transitions. Word has length 84 [2019-09-20 13:30:14,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:14,010 INFO L475 AbstractCegarLoop]: Abstraction has 358 states and 410 transitions. [2019-09-20 13:30:14,011 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:14,011 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 410 transitions. [2019-09-20 13:30:14,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:30:14,014 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:14,014 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] [2019-09-20 13:30:14,015 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:14,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:14,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1305842374, now seen corresponding path program 1 times [2019-09-20 13:30:14,017 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:14,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:14,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:14,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:14,020 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:14,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:14,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:14,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:14,115 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:14,115 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:14,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:14,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:14,116 INFO L87 Difference]: Start difference. First operand 358 states and 410 transitions. Second operand 7 states. [2019-09-20 13:30:14,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:14,752 INFO L93 Difference]: Finished difference Result 389 states and 459 transitions. [2019-09-20 13:30:14,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:30:14,753 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2019-09-20 13:30:14,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:14,756 INFO L225 Difference]: With dead ends: 389 [2019-09-20 13:30:14,756 INFO L226 Difference]: Without dead ends: 389 [2019-09-20 13:30:14,757 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:30:14,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-09-20 13:30:14,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 357. [2019-09-20 13:30:14,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2019-09-20 13:30:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 407 transitions. [2019-09-20 13:30:14,787 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 407 transitions. Word has length 88 [2019-09-20 13:30:14,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:14,788 INFO L475 AbstractCegarLoop]: Abstraction has 357 states and 407 transitions. [2019-09-20 13:30:14,788 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 407 transitions. [2019-09-20 13:30:14,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:14,790 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:14,790 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, 1] [2019-09-20 13:30:14,791 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:14,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:14,791 INFO L82 PathProgramCache]: Analyzing trace with hash -638509814, now seen corresponding path program 1 times [2019-09-20 13:30:14,791 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:14,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:14,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:14,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:14,794 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:14,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:14,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:14,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:14,900 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:14,901 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:14,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:14,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:14,902 INFO L87 Difference]: Start difference. First operand 357 states and 407 transitions. Second operand 6 states. [2019-09-20 13:30:14,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:14,943 INFO L93 Difference]: Finished difference Result 367 states and 417 transitions. [2019-09-20 13:30:14,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:14,944 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-09-20 13:30:14,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:14,949 INFO L225 Difference]: With dead ends: 367 [2019-09-20 13:30:14,950 INFO L226 Difference]: Without dead ends: 367 [2019-09-20 13:30:14,950 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 [2019-09-20 13:30:14,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2019-09-20 13:30:14,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2019-09-20 13:30:14,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2019-09-20 13:30:14,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 417 transitions. [2019-09-20 13:30:14,976 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 417 transitions. Word has length 89 [2019-09-20 13:30:14,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:14,976 INFO L475 AbstractCegarLoop]: Abstraction has 367 states and 417 transitions. [2019-09-20 13:30:14,977 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:14,977 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 417 transitions. [2019-09-20 13:30:14,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:14,980 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:14,980 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, 1] [2019-09-20 13:30:14,980 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:14,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:14,981 INFO L82 PathProgramCache]: Analyzing trace with hash 63090060, now seen corresponding path program 1 times [2019-09-20 13:30:14,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:14,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:14,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:14,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:14,985 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:15,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:15,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:15,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:30:15,121 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:15,128 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:30:15,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:30:15,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:15,129 INFO L87 Difference]: Start difference. First operand 367 states and 417 transitions. Second operand 8 states. [2019-09-20 13:30:15,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:15,175 INFO L93 Difference]: Finished difference Result 381 states and 431 transitions. [2019-09-20 13:30:15,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:15,179 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2019-09-20 13:30:15,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:15,183 INFO L225 Difference]: With dead ends: 381 [2019-09-20 13:30:15,183 INFO L226 Difference]: Without dead ends: 381 [2019-09-20 13:30:15,184 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 [2019-09-20 13:30:15,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2019-09-20 13:30:15,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 375. [2019-09-20 13:30:15,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-09-20 13:30:15,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 425 transitions. [2019-09-20 13:30:15,212 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 425 transitions. Word has length 89 [2019-09-20 13:30:15,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:15,213 INFO L475 AbstractCegarLoop]: Abstraction has 375 states and 425 transitions. [2019-09-20 13:30:15,214 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:30:15,214 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 425 transitions. [2019-09-20 13:30:15,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:15,218 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:15,218 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, 1] [2019-09-20 13:30:15,219 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:15,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:15,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1788570957, now seen corresponding path program 1 times [2019-09-20 13:30:15,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:15,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:15,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:15,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:15,228 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:15,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:15,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:15,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:30:15,392 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:15,392 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:30:15,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:30:15,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:15,393 INFO L87 Difference]: Start difference. First operand 375 states and 425 transitions. Second operand 4 states. [2019-09-20 13:30:15,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:15,616 INFO L93 Difference]: Finished difference Result 785 states and 931 transitions. [2019-09-20 13:30:15,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:30:15,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2019-09-20 13:30:15,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:15,624 INFO L225 Difference]: With dead ends: 785 [2019-09-20 13:30:15,624 INFO L226 Difference]: Without dead ends: 785 [2019-09-20 13:30:15,625 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 [2019-09-20 13:30:15,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2019-09-20 13:30:15,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 507. [2019-09-20 13:30:15,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2019-09-20 13:30:15,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 570 transitions. [2019-09-20 13:30:15,658 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 570 transitions. Word has length 89 [2019-09-20 13:30:15,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:15,659 INFO L475 AbstractCegarLoop]: Abstraction has 507 states and 570 transitions. [2019-09-20 13:30:15,660 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:30:15,660 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 570 transitions. [2019-09-20 13:30:15,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-20 13:30:15,662 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:15,663 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, 1, 1, 1, 1, 1] [2019-09-20 13:30:15,663 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:15,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:15,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1370895219, now seen corresponding path program 1 times [2019-09-20 13:30:15,663 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:15,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:15,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:15,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:15,666 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:15,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:15,730 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:15,730 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:15,730 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:15,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:15,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:15,731 INFO L87 Difference]: Start difference. First operand 507 states and 570 transitions. Second operand 3 states. [2019-09-20 13:30:15,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:15,763 INFO L93 Difference]: Finished difference Result 773 states and 884 transitions. [2019-09-20 13:30:15,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:15,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2019-09-20 13:30:15,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:15,769 INFO L225 Difference]: With dead ends: 773 [2019-09-20 13:30:15,769 INFO L226 Difference]: Without dead ends: 773 [2019-09-20 13:30:15,769 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:15,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2019-09-20 13:30:15,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 647. [2019-09-20 13:30:15,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2019-09-20 13:30:15,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 738 transitions. [2019-09-20 13:30:15,793 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 738 transitions. Word has length 93 [2019-09-20 13:30:15,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:15,794 INFO L475 AbstractCegarLoop]: Abstraction has 647 states and 738 transitions. [2019-09-20 13:30:15,794 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:15,794 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 738 transitions. [2019-09-20 13:30:15,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-09-20 13:30:15,799 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:15,799 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:15,799 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:15,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:15,800 INFO L82 PathProgramCache]: Analyzing trace with hash -669184687, now seen corresponding path program 1 times [2019-09-20 13:30:15,800 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:15,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:15,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:15,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:15,802 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:16,016 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-20 13:30:16,017 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:30:16,017 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:30:16,019 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2019-09-20 13:30:16,022 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [103], [104], [105], [108], [110], [116], [120], [123], [124], [125], [134], [138], [142], [145], [148], [150], [153], [156], [158], [164], [167], [177], [179], [182], [184], [187], [190], [193], [201], [202], [203], [213], [214], [215], [217], [222], [224], [225], [228], [229], [232], [235], [239], [245], [274], [278], [281], [284], [286], [289], [296], [299], [302], [306], [307], [310], [311], [312], [336], [338], [339], [406], [407], [412], [414], [417], [425], [426], [427], [428], [429], [430], [431], [432], [433], [465], [466], [469], [470], [471], [472], [473], [474], [475], [476], [479], [480], [483], [484], [485], [486], [487], [489], [490], [491], [492], [493], [494], [495], [496], [501], [502], [503], [504], [507], [508], [511], [512], [513], [515], [516], [521], [522], [523] [2019-09-20 13:30:16,085 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:30:16,085 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:30:16,193 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:30:16,195 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 70 root evaluator evaluations with a maximum evaluation depth of 0. Performed 70 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-20 13:30:16,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:16,202 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:30:16,310 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:30:16,310 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:30:16,322 INFO L420 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2019-09-20 13:30:16,322 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:30:16,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:30:16,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-20 13:30:16,324 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:16,326 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:16,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:16,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:16,327 INFO L87 Difference]: Start difference. First operand 647 states and 738 transitions. Second operand 2 states. [2019-09-20 13:30:16,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:16,327 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:30:16,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:16,328 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-09-20 13:30:16,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:16,328 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:30:16,328 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:16,329 INFO L636 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 [2019-09-20 13:30:16,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:16,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:16,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:16,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:16,330 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2019-09-20 13:30:16,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:16,331 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:16,331 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:16,331 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:16,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:16,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:16 BoogieIcfgContainer [2019-09-20 13:30:16,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:16,343 INFO L168 Benchmark]: Toolchain (without parser) took 7161.59 ms. Allocated memory was 131.1 MB in the beginning and 340.3 MB in the end (delta: 209.2 MB). Free memory was 85.8 MB in the beginning and 159.3 MB in the end (delta: -73.5 MB). Peak memory consumption was 135.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:16,345 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:16,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.10 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 85.6 MB in the beginning and 164.0 MB in the end (delta: -78.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:16,348 INFO L168 Benchmark]: Boogie Preprocessor took 97.94 ms. Allocated memory is still 199.2 MB. Free memory was 164.0 MB in the beginning and 160.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:16,354 INFO L168 Benchmark]: RCFGBuilder took 1228.49 ms. Allocated memory is still 199.2 MB. Free memory was 160.0 MB in the beginning and 74.4 MB in the end (delta: 85.6 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:16,355 INFO L168 Benchmark]: TraceAbstraction took 5129.36 ms. Allocated memory was 199.2 MB in the beginning and 340.3 MB in the end (delta: 141.0 MB). Free memory was 74.4 MB in the beginning and 159.3 MB in the end (delta: -84.9 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:16,363 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 698.10 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 85.6 MB in the beginning and 164.0 MB in the end (delta: -78.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.94 ms. Allocated memory is still 199.2 MB. Free memory was 164.0 MB in the beginning and 160.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1228.49 ms. Allocated memory is still 199.2 MB. Free memory was 160.0 MB in the beginning and 74.4 MB in the end (delta: 85.6 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5129.36 ms. Allocated memory was 199.2 MB in the beginning and 340.3 MB in the end (delta: 141.0 MB). Free memory was 74.4 MB in the beginning and 159.3 MB in the end (delta: -84.9 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 40 procedures, 234 locations, 1 error locations. SAFE Result, 5.0s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1561 SDtfs, 895 SDslu, 3015 SDs, 0 SdLazy, 1015 SolverSat, 237 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=647occurred in iteration=10, 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, 0.8344370860927153 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 467 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 914 NumberOfCodeBlocks, 914 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 903 ConstructedInterpolants, 0 QuantifiedInterpolants, 135264 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 40/42 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...