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_spec5_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:17,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:17,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:17,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:17,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:17,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:17,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:17,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:17,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:17,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:17,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:17,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:17,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:17,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:17,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:17,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:17,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:17,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:17,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:17,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:17,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:17,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:17,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:17,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:17,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:17,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:17,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:17,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:17,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:17,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:17,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:17,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:17,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:17,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:17,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:17,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:17,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:17,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:17,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:17,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:17,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:17,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:31:17,205 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:17,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:17,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:17,206 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:17,207 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:17,207 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:17,207 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:17,208 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:17,208 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:17,208 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:17,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:17,211 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:17,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:17,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:17,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:17,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:17,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:17,212 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:17,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:17,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:17,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:17,213 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:17,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:17,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:17,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:17,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:17,215 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:17,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:17,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:17,215 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:17,271 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:17,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:17,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:17,286 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:17,286 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:17,287 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product21.cil.c [2019-09-20 13:31:17,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22283a7a2/1279f834fbd240fe8dafc0039d7a9242/FLAG2a3168413 [2019-09-20 13:31:17,854 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:17,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product21.cil.c [2019-09-20 13:31:17,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22283a7a2/1279f834fbd240fe8dafc0039d7a9242/FLAG2a3168413 [2019-09-20 13:31:18,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22283a7a2/1279f834fbd240fe8dafc0039d7a9242 [2019-09-20 13:31:18,186 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:18,188 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:18,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:18,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:18,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:18,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:18" (1/1) ... [2019-09-20 13:31:18,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aceb178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:18, skipping insertion in model container [2019-09-20 13:31:18,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:18" (1/1) ... [2019-09-20 13:31:18,208 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:18,266 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:18,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:18,752 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:18,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:18,915 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:18,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:18 WrapperNode [2019-09-20 13:31:18,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:18,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:18,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:18,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:18,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:18" (1/1) ... [2019-09-20 13:31:18,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:18" (1/1) ... [2019-09-20 13:31:18,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:18" (1/1) ... [2019-09-20 13:31:18,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:18" (1/1) ... [2019-09-20 13:31:19,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:18" (1/1) ... [2019-09-20 13:31:19,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:18" (1/1) ... [2019-09-20 13:31:19,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:18" (1/1) ... [2019-09-20 13:31:19,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:19,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:19,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:19,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:19,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:19,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:19,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:19,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:19,105 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:19,105 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:19,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:19,105 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:19,105 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:19,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:19,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:19,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:19,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:19,107 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:19,107 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:19,108 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:19,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:19,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:19,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:19,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:19,109 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:19,110 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:19,110 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:19,110 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:19,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:19,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:19,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:19,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:19,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:19,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:19,114 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:19,114 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:19,114 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:19,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:31:19,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:19,115 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:19,115 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:19,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:19,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:19,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:19,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:19,122 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:19,122 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:19,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:19,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:19,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:19,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:19,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:19,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:31:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:20,192 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:20,192 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:20,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:20 BoogieIcfgContainer [2019-09-20 13:31:20,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:20,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:20,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:20,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:20,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:18" (1/3) ... [2019-09-20 13:31:20,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283114cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:20, skipping insertion in model container [2019-09-20 13:31:20,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:18" (2/3) ... [2019-09-20 13:31:20,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283114cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:20, skipping insertion in model container [2019-09-20 13:31:20,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:20" (3/3) ... [2019-09-20 13:31:20,202 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product21.cil.c [2019-09-20 13:31:20,212 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:20,221 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:20,238 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:20,266 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:20,267 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:20,267 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:20,267 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:20,267 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:20,268 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:20,268 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:20,268 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:20,294 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2019-09-20 13:31:20,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:20,314 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:20,315 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:20,320 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:20,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:20,326 INFO L82 PathProgramCache]: Analyzing trace with hash -393031923, now seen corresponding path program 1 times [2019-09-20 13:31:20,328 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:20,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:20,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:20,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:20,386 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:20,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:20,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:20,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:20,748 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:20,755 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:20,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:20,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:20,776 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 2 states. [2019-09-20 13:31:20,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:20,832 INFO L93 Difference]: Finished difference Result 143 states and 167 transitions. [2019-09-20 13:31:20,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:20,834 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:20,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:20,861 INFO L225 Difference]: With dead ends: 143 [2019-09-20 13:31:20,862 INFO L226 Difference]: Without dead ends: 132 [2019-09-20 13:31:20,867 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:20,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-09-20 13:31:20,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-09-20 13:31:20,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-09-20 13:31:20,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 155 transitions. [2019-09-20 13:31:20,926 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 155 transitions. Word has length 59 [2019-09-20 13:31:20,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:20,926 INFO L475 AbstractCegarLoop]: Abstraction has 132 states and 155 transitions. [2019-09-20 13:31:20,926 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:20,927 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 155 transitions. [2019-09-20 13:31:20,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:31:20,931 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:20,931 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:20,932 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:20,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:20,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1952772994, now seen corresponding path program 1 times [2019-09-20 13:31:20,932 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:20,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:20,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:20,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:20,936 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:21,108 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:21,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:21,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:21,109 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:21,113 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:21,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:21,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:21,114 INFO L87 Difference]: Start difference. First operand 132 states and 155 transitions. Second operand 3 states. [2019-09-20 13:31:21,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:21,139 INFO L93 Difference]: Finished difference Result 123 states and 143 transitions. [2019-09-20 13:31:21,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:21,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:31:21,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:21,142 INFO L225 Difference]: With dead ends: 123 [2019-09-20 13:31:21,142 INFO L226 Difference]: Without dead ends: 123 [2019-09-20 13:31:21,143 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:21,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-20 13:31:21,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-09-20 13:31:21,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-20 13:31:21,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2019-09-20 13:31:21,156 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 60 [2019-09-20 13:31:21,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:21,157 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2019-09-20 13:31:21,157 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:21,157 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2019-09-20 13:31:21,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-20 13:31:21,160 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:21,160 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:21,161 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:21,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:21,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1943492224, now seen corresponding path program 1 times [2019-09-20 13:31:21,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:21,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:21,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:21,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:21,164 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:21,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:21,264 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:21,264 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:21,264 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:21,266 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:21,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:21,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:21,266 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 3 states. [2019-09-20 13:31:21,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:21,295 INFO L93 Difference]: Finished difference Result 123 states and 142 transitions. [2019-09-20 13:31:21,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:21,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2019-09-20 13:31:21,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:21,304 INFO L225 Difference]: With dead ends: 123 [2019-09-20 13:31:21,304 INFO L226 Difference]: Without dead ends: 123 [2019-09-20 13:31:21,306 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:21,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-20 13:31:21,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-09-20 13:31:21,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-20 13:31:21,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2019-09-20 13:31:21,318 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 64 [2019-09-20 13:31:21,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:21,320 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2019-09-20 13:31:21,321 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:21,321 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2019-09-20 13:31:21,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-20 13:31:21,324 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:21,324 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:21,324 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:21,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:21,325 INFO L82 PathProgramCache]: Analyzing trace with hash -49364601, now seen corresponding path program 1 times [2019-09-20 13:31:21,325 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:21,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:21,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:21,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:21,328 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:21,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:31:21,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:21,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:21,486 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:21,487 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:21,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:21,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:21,488 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 7 states. [2019-09-20 13:31:21,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:21,968 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2019-09-20 13:31:21,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:31:21,968 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2019-09-20 13:31:21,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:21,970 INFO L225 Difference]: With dead ends: 86 [2019-09-20 13:31:21,970 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:21,970 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:31:21,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:21,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:21,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:21,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:21,971 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2019-09-20 13:31:21,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:21,972 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:21,972 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:21,972 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:21,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:21,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:21 BoogieIcfgContainer [2019-09-20 13:31:21,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:21,982 INFO L168 Benchmark]: Toolchain (without parser) took 3792.48 ms. Allocated memory was 139.5 MB in the beginning and 263.2 MB in the end (delta: 123.7 MB). Free memory was 86.1 MB in the beginning and 208.0 MB in the end (delta: -121.8 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:21,986 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:21,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.25 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 85.9 MB in the beginning and 163.4 MB in the end (delta: -77.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:21,990 INFO L168 Benchmark]: Boogie Preprocessor took 109.64 ms. Allocated memory is still 198.7 MB. Free memory was 163.4 MB in the beginning and 159.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:21,992 INFO L168 Benchmark]: RCFGBuilder took 1166.52 ms. Allocated memory was 198.7 MB in the beginning and 222.8 MB in the end (delta: 24.1 MB). Free memory was 159.7 MB in the beginning and 190.4 MB in the end (delta: -30.7 MB). Peak memory consumption was 90.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:21,994 INFO L168 Benchmark]: TraceAbstraction took 1783.58 ms. Allocated memory was 222.8 MB in the beginning and 263.2 MB in the end (delta: 40.4 MB). Free memory was 190.4 MB in the beginning and 208.0 MB in the end (delta: -17.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:22,003 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.25 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 85.9 MB in the beginning and 163.4 MB in the end (delta: -77.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.64 ms. Allocated memory is still 198.7 MB. Free memory was 163.4 MB in the beginning and 159.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1166.52 ms. Allocated memory was 198.7 MB in the beginning and 222.8 MB in the end (delta: 24.1 MB). Free memory was 159.7 MB in the beginning and 190.4 MB in the end (delta: -30.7 MB). Peak memory consumption was 90.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1783.58 ms. Allocated memory was 222.8 MB in the beginning and 263.2 MB in the end (delta: 40.4 MB). Free memory was 190.4 MB in the beginning and 208.0 MB in the end (delta: -17.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 202]: 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, 1.7s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 521 SDtfs, 210 SDslu, 246 SDs, 0 SdLazy, 186 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 27246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...