/usr/bin/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:05:33,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:05:33,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:05:33,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:05:33,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:05:33,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:05:33,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:05:33,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:05:33,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:05:33,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:05:33,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:05:33,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:05:33,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:05:33,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:05:33,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:05:33,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:05:33,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:05:33,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:05:33,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:05:33,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:05:33,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:05:33,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:05:33,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:05:33,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:05:33,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:05:33,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:05:33,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:05:33,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:05:33,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:05:33,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:05:33,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:05:33,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:05:33,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:05:33,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:05:33,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:05:33,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:05:33,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:05:33,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:05:33,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:05:33,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:05:33,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:05:33,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:05:33,174 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:05:33,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:05:33,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:05:33,176 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:05:33,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:05:33,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:05:33,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:05:33,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:05:33,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:05:33,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:05:33,178 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:05:33,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:05:33,178 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:05:33,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:05:33,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:05:33,179 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:05:33,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:05:33,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:05:33,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:05:33,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:05:33,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:05:33,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:05:33,181 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:05:33,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:05:33,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:05:33,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:05:33,491 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:05:33,491 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:05:33,492 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-08-22 18:05:33,564 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722ca4330/660d2358796e4ce1aea26fe80072e47c/FLAG28ad64ba4 [2020-08-22 18:05:34,126 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:05:34,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-08-22 18:05:34,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722ca4330/660d2358796e4ce1aea26fe80072e47c/FLAG28ad64ba4 [2020-08-22 18:05:34,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722ca4330/660d2358796e4ce1aea26fe80072e47c [2020-08-22 18:05:34,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:05:34,396 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:05:34,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:05:34,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:05:34,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:05:34,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:05:34" (1/1) ... [2020-08-22 18:05:34,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ba2538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:34, skipping insertion in model container [2020-08-22 18:05:34,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:05:34" (1/1) ... [2020-08-22 18:05:34,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:05:34,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:05:34,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:05:34,883 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:05:34,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:05:34,996 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:05:34,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:34 WrapperNode [2020-08-22 18:05:34,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:05:34,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:05:34,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:05:34,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:05:35,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:34" (1/1) ... [2020-08-22 18:05:35,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:34" (1/1) ... [2020-08-22 18:05:35,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:34" (1/1) ... [2020-08-22 18:05:35,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:34" (1/1) ... [2020-08-22 18:05:35,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:34" (1/1) ... [2020-08-22 18:05:35,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:34" (1/1) ... [2020-08-22 18:05:35,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:34" (1/1) ... [2020-08-22 18:05:35,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:05:35,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:05:35,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:05:35,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:05:35,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:05:35,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:05:35,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:05:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 18:05:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 18:05:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 18:05:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 18:05:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 18:05:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:05:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 18:05:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:05:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 18:05:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 18:05:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 18:05:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 18:05:35,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 18:05:35,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 18:05:35,174 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 18:05:35,174 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 18:05:35,175 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 18:05:35,175 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 18:05:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 18:05:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 18:05:35,179 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 18:05:35,179 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-22 18:05:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 18:05:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 18:05:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 18:05:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 18:05:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 18:05:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 18:05:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 18:05:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 18:05:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 18:05:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 18:05:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 18:05:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 18:05:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 18:05:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 18:05:35,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 18:05:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:05:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:05:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 18:05:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 18:05:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 18:05:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 18:05:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 18:05:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 18:05:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 18:05:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 18:05:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 18:05:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 18:05:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 18:05:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 18:05:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 18:05:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:05:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 18:05:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 18:05:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 18:05:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 18:05:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:05:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 18:05:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 18:05:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 18:05:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 18:05:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 18:05:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 18:05:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:05:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 18:05:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 18:05:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:05:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 18:05:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 18:05:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:05:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 18:05:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 18:05:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:05:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 18:05:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 18:05:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 18:05:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 18:05:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 18:05:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 18:05:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 18:05:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 18:05:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 18:05:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 18:05:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 18:05:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-22 18:05:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 18:05:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:05:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 18:05:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:05:36,274 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:05:36,275 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 18:05:36,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:05:36 BoogieIcfgContainer [2020-08-22 18:05:36,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:05:36,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:05:36,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:05:36,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:05:36,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:05:34" (1/3) ... [2020-08-22 18:05:36,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735a7ac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:05:36, skipping insertion in model container [2020-08-22 18:05:36,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:34" (2/3) ... [2020-08-22 18:05:36,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735a7ac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:05:36, skipping insertion in model container [2020-08-22 18:05:36,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:05:36" (3/3) ... [2020-08-22 18:05:36,289 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-08-22 18:05:36,299 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:05:36,308 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:05:36,322 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:05:36,343 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:05:36,343 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:05:36,343 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:05:36,344 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:05:36,344 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:05:36,345 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:05:36,345 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:05:36,345 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:05:36,365 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-08-22 18:05:36,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 18:05:36,386 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:36,387 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:05:36,388 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:36,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:36,394 INFO L82 PathProgramCache]: Analyzing trace with hash -377200977, now seen corresponding path program 1 times [2020-08-22 18:05:36,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:36,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277144828] [2020-08-22 18:05:36,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:36,468 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:37,134 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:37,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:37,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:37,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:37,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:37,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:37,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:05:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:37,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:05:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:37,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:05:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:37,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:37,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277144828] [2020-08-22 18:05:37,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:37,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:05:37,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927459198] [2020-08-22 18:05:37,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:05:37,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:37,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:05:37,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:05:37,333 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 3 states. [2020-08-22 18:05:38,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:38,676 INFO L93 Difference]: Finished difference Result 497 states and 588 transitions. [2020-08-22 18:05:38,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:05:38,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 18:05:38,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:38,697 INFO L225 Difference]: With dead ends: 497 [2020-08-22 18:05:38,697 INFO L226 Difference]: Without dead ends: 307 [2020-08-22 18:05:38,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:05:38,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-08-22 18:05:38,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 264. [2020-08-22 18:05:38,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-08-22 18:05:38,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2020-08-22 18:05:38,850 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 153 [2020-08-22 18:05:38,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:38,851 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2020-08-22 18:05:38,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:05:38,852 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2020-08-22 18:05:38,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 18:05:38,856 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:38,857 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:05:38,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:05:38,857 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:38,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:38,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1698755128, now seen corresponding path program 1 times [2020-08-22 18:05:38,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:38,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316141703] [2020-08-22 18:05:38,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:38,862 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:39,221 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:39,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:39,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:39,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:39,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:39,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:39,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 18:05:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:39,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 18:05:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:39,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 18:05:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:39,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:39,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316141703] [2020-08-22 18:05:39,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:39,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:05:39,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212689232] [2020-08-22 18:05:39,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:05:39,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:39,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:05:39,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:05:39,302 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand 4 states. [2020-08-22 18:05:39,865 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:05:40,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:40,775 INFO L93 Difference]: Finished difference Result 405 states and 453 transitions. [2020-08-22 18:05:40,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:05:40,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 18:05:40,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:40,782 INFO L225 Difference]: With dead ends: 405 [2020-08-22 18:05:40,782 INFO L226 Difference]: Without dead ends: 290 [2020-08-22 18:05:40,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:05:40,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-08-22 18:05:40,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 254. [2020-08-22 18:05:40,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-08-22 18:05:40,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 273 transitions. [2020-08-22 18:05:40,875 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 273 transitions. Word has length 154 [2020-08-22 18:05:40,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:40,876 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 273 transitions. [2020-08-22 18:05:40,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:05:40,876 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 273 transitions. [2020-08-22 18:05:40,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-08-22 18:05:40,879 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:40,879 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:05:40,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:05:40,880 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:40,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:40,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1272338923, now seen corresponding path program 1 times [2020-08-22 18:05:40,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:40,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518113680] [2020-08-22 18:05:40,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:40,883 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:41,223 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:41,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:41,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:41,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:41,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:41,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:05:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:41,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:05:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:41,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-08-22 18:05:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:41,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518113680] [2020-08-22 18:05:41,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:41,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:05:41,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129522777] [2020-08-22 18:05:41,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:05:41,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:41,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:05:41,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:05:41,446 INFO L87 Difference]: Start difference. First operand 254 states and 273 transitions. Second operand 9 states. [2020-08-22 18:05:41,900 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:42,206 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:05:42,472 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:05:42,704 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:42,932 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:43,152 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:44,053 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:05:46,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:46,166 INFO L93 Difference]: Finished difference Result 684 states and 780 transitions. [2020-08-22 18:05:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 18:05:46,171 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-08-22 18:05:46,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:46,175 INFO L225 Difference]: With dead ends: 684 [2020-08-22 18:05:46,175 INFO L226 Difference]: Without dead ends: 540 [2020-08-22 18:05:46,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-08-22 18:05:46,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-08-22 18:05:46,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 461. [2020-08-22 18:05:46,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-08-22 18:05:46,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 510 transitions. [2020-08-22 18:05:46,312 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 510 transitions. Word has length 163 [2020-08-22 18:05:46,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:46,312 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 510 transitions. [2020-08-22 18:05:46,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:05:46,313 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 510 transitions. [2020-08-22 18:05:46,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-08-22 18:05:46,316 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:46,316 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:05:46,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:05:46,317 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:46,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:46,317 INFO L82 PathProgramCache]: Analyzing trace with hash 834967554, now seen corresponding path program 1 times [2020-08-22 18:05:46,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:46,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730137355] [2020-08-22 18:05:46,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:46,320 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,581 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:46,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 18:05:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:05:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 18:05:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-08-22 18:05:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-08-22 18:05:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:46,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730137355] [2020-08-22 18:05:46,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:46,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:05:46,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479216575] [2020-08-22 18:05:46,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:05:46,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:46,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:05:46,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:05:46,690 INFO L87 Difference]: Start difference. First operand 461 states and 510 transitions. Second operand 6 states. [2020-08-22 18:05:47,230 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:49,319 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:05:49,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:49,945 INFO L93 Difference]: Finished difference Result 1166 states and 1357 transitions. [2020-08-22 18:05:49,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 18:05:49,945 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-08-22 18:05:49,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:49,956 INFO L225 Difference]: With dead ends: 1166 [2020-08-22 18:05:49,956 INFO L226 Difference]: Without dead ends: 815 [2020-08-22 18:05:49,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-22 18:05:49,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2020-08-22 18:05:50,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 699. [2020-08-22 18:05:50,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-08-22 18:05:50,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 772 transitions. [2020-08-22 18:05:50,247 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 772 transitions. Word has length 171 [2020-08-22 18:05:50,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:50,248 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 772 transitions. [2020-08-22 18:05:50,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:05:50,248 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 772 transitions. [2020-08-22 18:05:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 18:05:50,251 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:50,251 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:05:50,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:05:50,252 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:50,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:50,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1418606569, now seen corresponding path program 1 times [2020-08-22 18:05:50,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:50,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231602736] [2020-08-22 18:05:50,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:50,255 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,560 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:50,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 18:05:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 18:05:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 18:05:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-22 18:05:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:50,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:50,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231602736] [2020-08-22 18:05:50,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:50,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:05:50,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917881769] [2020-08-22 18:05:50,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:05:50,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:50,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:05:50,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:05:50,770 INFO L87 Difference]: Start difference. First operand 699 states and 772 transitions. Second operand 9 states. [2020-08-22 18:05:51,196 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:52,513 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:52,766 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:53,052 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:53,328 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:53,585 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:53,825 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:54,053 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:55,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:55,359 INFO L93 Difference]: Finished difference Result 1812 states and 2101 transitions. [2020-08-22 18:05:55,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 18:05:55,360 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-08-22 18:05:55,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:55,368 INFO L225 Difference]: With dead ends: 1812 [2020-08-22 18:05:55,368 INFO L226 Difference]: Without dead ends: 1223 [2020-08-22 18:05:55,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 18:05:55,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2020-08-22 18:05:55,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1140. [2020-08-22 18:05:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1140 states. [2020-08-22 18:05:55,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1275 transitions. [2020-08-22 18:05:55,677 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1275 transitions. Word has length 172 [2020-08-22 18:05:55,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:55,678 INFO L479 AbstractCegarLoop]: Abstraction has 1140 states and 1275 transitions. [2020-08-22 18:05:55,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:05:55,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1275 transitions. [2020-08-22 18:05:55,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 18:05:55,682 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:55,682 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:05:55,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:05:55,682 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:55,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:55,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1797665662, now seen corresponding path program 1 times [2020-08-22 18:05:55,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:55,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642958662] [2020-08-22 18:05:55,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:55,686 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:05:55,737 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:05:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:05:55,785 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:05:55,963 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:05:55,963 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:05:55,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 18:05:55,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:05:55 BoogieIcfgContainer [2020-08-22 18:05:55,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:05:55,991 INFO L168 Benchmark]: Toolchain (without parser) took 21595.01 ms. Allocated memory was 146.8 MB in the beginning and 640.2 MB in the end (delta: 493.4 MB). Free memory was 101.5 MB in the beginning and 114.3 MB in the end (delta: -12.8 MB). Peak memory consumption was 480.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:55,992 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:05:55,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.57 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.3 MB in the beginning and 171.6 MB in the end (delta: -70.3 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:55,994 INFO L168 Benchmark]: Boogie Preprocessor took 87.02 ms. Allocated memory is still 204.5 MB. Free memory was 171.6 MB in the beginning and 167.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:55,995 INFO L168 Benchmark]: RCFGBuilder took 1197.03 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 167.4 MB in the beginning and 172.7 MB in the end (delta: -5.3 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:55,995 INFO L168 Benchmark]: TraceAbstraction took 19706.33 ms. Allocated memory was 235.4 MB in the beginning and 640.2 MB in the end (delta: 404.8 MB). Free memory was 172.7 MB in the beginning and 114.3 MB in the end (delta: 58.3 MB). Peak memory consumption was 463.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:55,999 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 599.57 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.3 MB in the beginning and 171.6 MB in the end (delta: -70.3 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.02 ms. Allocated memory is still 204.5 MB. Free memory was 171.6 MB in the beginning and 167.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1197.03 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 167.4 MB in the beginning and 172.7 MB in the end (delta: -5.3 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19706.33 ms. Allocated memory was 235.4 MB in the beginning and 640.2 MB in the end (delta: 404.8 MB). Free memory was 172.7 MB in the beginning and 114.3 MB in the end (delta: 58.3 MB). Peak memory consumption was 463.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 [L792] COND TRUE 1 [L794] COND TRUE splverifierCounter < 4 [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) [L804] CALL waterRise() [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 [L804] RET waterRise() [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L770] COND FALSE !(\read(pumpRunning)) [L777] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND FALSE !(\read(systemActive)) [L619] CALL __utac_acc__Specification3_spec__1() [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L163] CALL, EXPR isMethaneLevelCritical() [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); [L163] RET, EXPR isMethaneLevelCritical() [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L169] CALL, EXPR getWaterLevel() [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); [L169] RET, EXPR getWaterLevel() [L169] tmp___0 = getWaterLevel() [L171] COND TRUE tmp___0 == 2 [L173] CALL, EXPR isPumpRunning() [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); [L173] RET, EXPR isPumpRunning() [L173] tmp___1 = isPumpRunning() [L175] COND FALSE !(\read(tmp___1)) [L179] CALL __automaton_fail() [L148] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 15.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1258 SDtfs, 1740 SDslu, 1621 SDs, 0 SdLazy, 3616 SolverSat, 547 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1140occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 357 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...