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_spec3_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:58:06,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:06,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:06,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:06,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:06,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:06,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:06,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:06,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:06,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:06,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:06,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:06,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:06,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:06,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:06,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:06,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:06,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:06,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:06,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:06,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:06,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:06,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:06,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:06,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:06,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:06,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:06,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:06,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:06,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:06,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:06,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:06,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:06,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:06,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:06,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:06,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:06,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:06,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:06,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:06,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:06,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:58:06,172 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:06,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:06,173 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:06,174 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:06,174 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:06,175 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:06,175 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:06,175 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:06,175 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:06,175 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:06,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:06,178 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:06,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:06,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:06,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:06,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:06,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:06,180 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:06,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:06,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:06,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:06,181 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:06,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:06,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:06,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:06,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:06,182 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:06,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:06,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:06,183 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:06,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:06,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:06,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:06,236 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:06,237 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:06,238 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product62.cil.c [2019-10-03 02:58:06,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109697ab9/292f39d46c284dcca33c7d9db290d5b2/FLAGa7c6d70cc [2019-10-03 02:58:06,887 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:06,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product62.cil.c [2019-10-03 02:58:06,906 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109697ab9/292f39d46c284dcca33c7d9db290d5b2/FLAGa7c6d70cc [2019-10-03 02:58:07,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109697ab9/292f39d46c284dcca33c7d9db290d5b2 [2019-10-03 02:58:07,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:07,194 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:07,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:07,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:07,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:07,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:07" (1/1) ... [2019-10-03 02:58:07,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f8c83ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:07, skipping insertion in model container [2019-10-03 02:58:07,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:07" (1/1) ... [2019-10-03 02:58:07,210 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:07,256 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:07,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:07,784 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:07,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:07,937 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:07,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:07 WrapperNode [2019-10-03 02:58:07,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:07,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:07,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:07,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:07,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:07" (1/1) ... [2019-10-03 02:58:07,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:07" (1/1) ... [2019-10-03 02:58:07,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:07" (1/1) ... [2019-10-03 02:58:07,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:07" (1/1) ... [2019-10-03 02:58:07,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:07" (1/1) ... [2019-10-03 02:58:08,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:07" (1/1) ... [2019-10-03 02:58:08,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:07" (1/1) ... [2019-10-03 02:58:08,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:08,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:08,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:08,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:08,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:08,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:08,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:58:08,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:08,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:08,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:08,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:08,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:08,110 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:08,111 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:08,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:58:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:58:08,113 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:08,113 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:08,113 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:08,113 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:58:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:58:08,116 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:08,116 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:58:08,116 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:08,116 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:08,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:08,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:08,117 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:08,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:58:08,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:58:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:58:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:58:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:58:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:58:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:58:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:58:08,131 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:58:08,131 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:58:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:58:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:58:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:09,373 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:09,376 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:09,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:09 BoogieIcfgContainer [2019-10-03 02:58:09,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:09,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:09,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:09,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:09,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:07" (1/3) ... [2019-10-03 02:58:09,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d69dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:09, skipping insertion in model container [2019-10-03 02:58:09,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:07" (2/3) ... [2019-10-03 02:58:09,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d69dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:09, skipping insertion in model container [2019-10-03 02:58:09,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:09" (3/3) ... [2019-10-03 02:58:09,387 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product62.cil.c [2019-10-03 02:58:09,397 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:09,409 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:09,427 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:09,455 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:09,455 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:09,455 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:09,455 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:09,456 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:09,456 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:09,456 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:09,456 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:09,476 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states. [2019-10-03 02:58:09,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:58:09,492 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:09,493 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:09,495 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:09,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:09,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1940108659, now seen corresponding path program 1 times [2019-10-03 02:58:09,504 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:09,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:09,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:09,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:09,566 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:09,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:09,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:09,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:09,912 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:09,919 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:09,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:09,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:09,947 INFO L87 Difference]: Start difference. First operand 203 states. Second operand 2 states. [2019-10-03 02:58:09,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:09,980 INFO L93 Difference]: Finished difference Result 171 states and 202 transitions. [2019-10-03 02:58:09,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:09,981 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-03 02:58:09,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:09,996 INFO L225 Difference]: With dead ends: 171 [2019-10-03 02:58:09,996 INFO L226 Difference]: Without dead ends: 160 [2019-10-03 02:58:09,998 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:10,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-10-03 02:58:10,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2019-10-03 02:58:10,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-10-03 02:58:10,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 190 transitions. [2019-10-03 02:58:10,058 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 190 transitions. Word has length 52 [2019-10-03 02:58:10,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:10,059 INFO L475 AbstractCegarLoop]: Abstraction has 160 states and 190 transitions. [2019-10-03 02:58:10,059 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:10,059 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 190 transitions. [2019-10-03 02:58:10,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-03 02:58:10,063 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:10,064 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:10,064 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:10,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:10,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1389083153, now seen corresponding path program 1 times [2019-10-03 02:58:10,065 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:10,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:10,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:10,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:10,069 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:10,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:10,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:10,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:10,166 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:10,168 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:10,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:10,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:10,169 INFO L87 Difference]: Start difference. First operand 160 states and 190 transitions. Second operand 3 states. [2019-10-03 02:58:10,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:10,187 INFO L93 Difference]: Finished difference Result 151 states and 178 transitions. [2019-10-03 02:58:10,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:10,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-03 02:58:10,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:10,191 INFO L225 Difference]: With dead ends: 151 [2019-10-03 02:58:10,191 INFO L226 Difference]: Without dead ends: 151 [2019-10-03 02:58:10,192 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:10,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-10-03 02:58:10,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2019-10-03 02:58:10,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-10-03 02:58:10,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 178 transitions. [2019-10-03 02:58:10,208 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 178 transitions. Word has length 53 [2019-10-03 02:58:10,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:10,209 INFO L475 AbstractCegarLoop]: Abstraction has 151 states and 178 transitions. [2019-10-03 02:58:10,209 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:10,209 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 178 transitions. [2019-10-03 02:58:10,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-03 02:58:10,212 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:10,212 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:10,213 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:10,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:10,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1857519430, now seen corresponding path program 1 times [2019-10-03 02:58:10,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:10,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:10,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:10,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:10,216 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:10,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:10,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:10,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:10,471 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:10,472 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:10,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:10,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:10,473 INFO L87 Difference]: Start difference. First operand 151 states and 178 transitions. Second operand 7 states. [2019-10-03 02:58:10,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:10,939 INFO L93 Difference]: Finished difference Result 151 states and 177 transitions. [2019-10-03 02:58:10,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:58:10,940 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-10-03 02:58:10,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:10,943 INFO L225 Difference]: With dead ends: 151 [2019-10-03 02:58:10,943 INFO L226 Difference]: Without dead ends: 151 [2019-10-03 02:58:10,943 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:10,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-10-03 02:58:10,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2019-10-03 02:58:10,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-10-03 02:58:10,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 177 transitions. [2019-10-03 02:58:10,963 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 177 transitions. Word has length 58 [2019-10-03 02:58:10,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:10,963 INFO L475 AbstractCegarLoop]: Abstraction has 151 states and 177 transitions. [2019-10-03 02:58:10,963 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:10,963 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 177 transitions. [2019-10-03 02:58:10,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-03 02:58:10,974 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:10,974 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:10,975 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:10,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:10,975 INFO L82 PathProgramCache]: Analyzing trace with hash -891726999, now seen corresponding path program 1 times [2019-10-03 02:58:10,975 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:10,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:10,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:10,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:10,984 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:11,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:11,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:11,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:58:11,136 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:11,137 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:58:11,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:58:11,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:58:11,137 INFO L87 Difference]: Start difference. First operand 151 states and 177 transitions. Second operand 5 states. [2019-10-03 02:58:11,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:11,763 INFO L93 Difference]: Finished difference Result 277 states and 319 transitions. [2019-10-03 02:58:11,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:58:11,764 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2019-10-03 02:58:11,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:11,775 INFO L225 Difference]: With dead ends: 277 [2019-10-03 02:58:11,775 INFO L226 Difference]: Without dead ends: 277 [2019-10-03 02:58:11,776 INFO L640 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 [2019-10-03 02:58:11,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2019-10-03 02:58:11,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 258. [2019-10-03 02:58:11,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-10-03 02:58:11,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 293 transitions. [2019-10-03 02:58:11,814 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 293 transitions. Word has length 76 [2019-10-03 02:58:11,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:11,815 INFO L475 AbstractCegarLoop]: Abstraction has 258 states and 293 transitions. [2019-10-03 02:58:11,815 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:58:11,815 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 293 transitions. [2019-10-03 02:58:11,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-03 02:58:11,817 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:11,817 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:11,817 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:11,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:11,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1078240077, now seen corresponding path program 1 times [2019-10-03 02:58:11,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:11,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:11,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,821 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:11,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:11,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:11,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:58:11,932 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:11,934 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:58:11,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:58:11,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:58:11,935 INFO L87 Difference]: Start difference. First operand 258 states and 293 transitions. Second operand 6 states. [2019-10-03 02:58:12,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:12,136 INFO L93 Difference]: Finished difference Result 399 states and 458 transitions. [2019-10-03 02:58:12,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:58:12,136 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2019-10-03 02:58:12,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:12,141 INFO L225 Difference]: With dead ends: 399 [2019-10-03 02:58:12,141 INFO L226 Difference]: Without dead ends: 399 [2019-10-03 02:58:12,142 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:58:12,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-03 02:58:12,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 395. [2019-10-03 02:58:12,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2019-10-03 02:58:12,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 454 transitions. [2019-10-03 02:58:12,179 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 454 transitions. Word has length 90 [2019-10-03 02:58:12,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:12,179 INFO L475 AbstractCegarLoop]: Abstraction has 395 states and 454 transitions. [2019-10-03 02:58:12,180 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:58:12,180 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 454 transitions. [2019-10-03 02:58:12,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:58:12,182 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:12,182 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:12,183 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:12,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:12,183 INFO L82 PathProgramCache]: Analyzing trace with hash -2043608601, now seen corresponding path program 1 times [2019-10-03 02:58:12,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:12,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:12,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:12,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:12,187 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:12,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:12,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:12,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:58:12,362 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:12,363 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:58:12,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:58:12,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:58:12,364 INFO L87 Difference]: Start difference. First operand 395 states and 454 transitions. Second operand 6 states. [2019-10-03 02:58:12,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:12,639 INFO L93 Difference]: Finished difference Result 624 states and 735 transitions. [2019-10-03 02:58:12,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:58:12,640 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2019-10-03 02:58:12,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:12,646 INFO L225 Difference]: With dead ends: 624 [2019-10-03 02:58:12,647 INFO L226 Difference]: Without dead ends: 624 [2019-10-03 02:58:12,647 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:58:12,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2019-10-03 02:58:12,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 606. [2019-10-03 02:58:12,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 606 states. [2019-10-03 02:58:12,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 712 transitions. [2019-10-03 02:58:12,682 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 712 transitions. Word has length 94 [2019-10-03 02:58:12,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:12,683 INFO L475 AbstractCegarLoop]: Abstraction has 606 states and 712 transitions. [2019-10-03 02:58:12,683 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:58:12,683 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 712 transitions. [2019-10-03 02:58:12,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:58:12,685 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:12,685 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:12,685 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:12,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:12,686 INFO L82 PathProgramCache]: Analyzing trace with hash 315698408, now seen corresponding path program 1 times [2019-10-03 02:58:12,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:12,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:12,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:12,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:12,689 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:12,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:12,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:58:12,769 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:12,769 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:58:12,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:58:12,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:58:12,770 INFO L87 Difference]: Start difference. First operand 606 states and 712 transitions. Second operand 5 states. [2019-10-03 02:58:12,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:12,791 INFO L93 Difference]: Finished difference Result 616 states and 722 transitions. [2019-10-03 02:58:12,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:58:12,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2019-10-03 02:58:12,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:12,795 INFO L225 Difference]: With dead ends: 616 [2019-10-03 02:58:12,795 INFO L226 Difference]: Without dead ends: 616 [2019-10-03 02:58:12,796 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:58:12,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-03 02:58:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 610. [2019-10-03 02:58:12,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2019-10-03 02:58:12,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 715 transitions. [2019-10-03 02:58:12,818 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 715 transitions. Word has length 94 [2019-10-03 02:58:12,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:12,818 INFO L475 AbstractCegarLoop]: Abstraction has 610 states and 715 transitions. [2019-10-03 02:58:12,818 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:58:12,818 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 715 transitions. [2019-10-03 02:58:12,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:58:12,820 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:12,820 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:12,821 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:12,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:12,821 INFO L82 PathProgramCache]: Analyzing trace with hash 975229930, now seen corresponding path program 1 times [2019-10-03 02:58:12,821 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:12,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:12,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:12,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:12,824 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:12,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:12,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:12,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 02:58:12,936 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:12,937 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 02:58:12,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 02:58:12,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:58:12,938 INFO L87 Difference]: Start difference. First operand 610 states and 715 transitions. Second operand 9 states. [2019-10-03 02:58:12,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:12,997 INFO L93 Difference]: Finished difference Result 627 states and 738 transitions. [2019-10-03 02:58:12,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-03 02:58:12,998 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2019-10-03 02:58:12,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:13,002 INFO L225 Difference]: With dead ends: 627 [2019-10-03 02:58:13,002 INFO L226 Difference]: Without dead ends: 627 [2019-10-03 02:58:13,003 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:13,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2019-10-03 02:58:13,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 617. [2019-10-03 02:58:13,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2019-10-03 02:58:13,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 722 transitions. [2019-10-03 02:58:13,028 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 722 transitions. Word has length 94 [2019-10-03 02:58:13,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:13,029 INFO L475 AbstractCegarLoop]: Abstraction has 617 states and 722 transitions. [2019-10-03 02:58:13,029 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 02:58:13,029 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 722 transitions. [2019-10-03 02:58:13,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-03 02:58:13,033 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:13,034 INFO L411 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] [2019-10-03 02:58:13,034 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:13,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:13,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1765139220, now seen corresponding path program 1 times [2019-10-03 02:58:13,034 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:13,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:13,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:13,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:13,037 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:13,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:58:13,165 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:58:13,166 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:58:13,167 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2019-10-03 02:58:13,209 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [161], [167], [169], [175], [178], [201], [203], [206], [211], [212], [213], [214], [216], [221], [223], [224], [225], [226], [232], [236], [278], [281], [283], [286], [296], [299], [303], [304], [307], [308], [323], [326], [327], [328], [351], [353], [354], [421], [422], [432], [434], [439], [441], [444], [446], [451], [458], [466], [467], [468], [469], [470], [471], [472], [473], [474], [514], [515], [516], [517], [522], [526], [527], [530], [531], [534], [535], [536], [542], [543], [544], [545], [556], [557], [560], [562], [563], [568], [569], [570], [571], [572], [573], [574], [576], [577], [578] [2019-10-03 02:58:13,258 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:58:13,258 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:58:13,343 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:58:13,345 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-10-03 02:58:13,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:13,350 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:58:13,398 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:58:13,398 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:58:13,402 INFO L420 sIntCurrentIteration]: We unified 105 AI predicates to 105 [2019-10-03 02:58:13,402 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:58:13,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:58:13,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2019-10-03 02:58:13,404 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:13,404 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:13,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:13,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:13,405 INFO L87 Difference]: Start difference. First operand 617 states and 722 transitions. Second operand 2 states. [2019-10-03 02:58:13,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:13,406 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:58:13,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:13,406 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 106 [2019-10-03 02:58:13,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:13,406 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:58:13,406 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:13,407 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:13,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:13,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:13,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:13,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:13,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 106 [2019-10-03 02:58:13,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:13,408 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:13,408 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:13,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:13,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:13,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:13 BoogieIcfgContainer [2019-10-03 02:58:13,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:13,417 INFO L168 Benchmark]: Toolchain (without parser) took 6221.03 ms. Allocated memory was 136.8 MB in the beginning and 359.1 MB in the end (delta: 222.3 MB). Free memory was 83.4 MB in the beginning and 311.6 MB in the end (delta: -228.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:58:13,418 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 102.9 MB in the beginning and 102.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:58:13,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.84 ms. Allocated memory was 136.8 MB in the beginning and 198.2 MB in the end (delta: 61.3 MB). Free memory was 83.2 MB in the beginning and 162.0 MB in the end (delta: -78.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:13,420 INFO L168 Benchmark]: Boogie Preprocessor took 85.29 ms. Allocated memory is still 198.2 MB. Free memory was 162.0 MB in the beginning and 158.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:13,421 INFO L168 Benchmark]: RCFGBuilder took 1353.57 ms. Allocated memory was 198.2 MB in the beginning and 216.0 MB in the end (delta: 17.8 MB). Free memory was 158.1 MB in the beginning and 183.4 MB in the end (delta: -25.4 MB). Peak memory consumption was 95.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:13,422 INFO L168 Benchmark]: TraceAbstraction took 4034.71 ms. Allocated memory was 216.0 MB in the beginning and 359.1 MB in the end (delta: 143.1 MB). Free memory was 183.4 MB in the beginning and 311.6 MB in the end (delta: -128.2 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:13,426 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 102.9 MB in the beginning and 102.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.84 ms. Allocated memory was 136.8 MB in the beginning and 198.2 MB in the end (delta: 61.3 MB). Free memory was 83.2 MB in the beginning and 162.0 MB in the end (delta: -78.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.29 ms. Allocated memory is still 198.2 MB. Free memory was 162.0 MB in the beginning and 158.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1353.57 ms. Allocated memory was 198.2 MB in the beginning and 216.0 MB in the end (delta: 17.8 MB). Free memory was 158.1 MB in the beginning and 183.4 MB in the end (delta: -25.4 MB). Peak memory consumption was 95.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4034.71 ms. Allocated memory was 216.0 MB in the beginning and 359.1 MB in the end (delta: 143.1 MB). Free memory was 183.4 MB in the beginning and 311.6 MB in the end (delta: -128.2 MB). Peak memory consumption was 14.9 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 43 procedures, 259 locations, 1 error locations. SAFE Result, 3.9s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1539 SDtfs, 758 SDslu, 3866 SDs, 0 SdLazy, 730 SolverSat, 246 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 140 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=617occurred in iteration=8, 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, 1.0857142857142856 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 57 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 717 NumberOfCodeBlocks, 717 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 708 ConstructedInterpolants, 0 QuantifiedInterpolants, 96243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 1/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...