/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:03:21,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:03:21,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:03:21,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:03:21,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:03:21,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:03:21,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:03:21,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:03:21,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:03:21,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:03:21,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:03:21,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:03:21,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:03:21,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:03:21,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:03:21,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:03:21,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:03:21,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:03:21,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:03:21,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:03:21,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:03:21,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:03:21,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:03:21,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:03:21,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:03:21,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:03:21,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:03:21,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:03:21,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:03:21,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:03:21,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:03:21,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:03:21,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:03:21,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:03:21,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:03:21,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:03:21,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:03:21,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:03:21,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:03:21,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:03:21,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:03:21,215 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:03:21,234 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:03:21,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:03:21,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:03:21,236 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:03:21,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:03:21,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:03:21,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:03:21,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:03:21,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:03:21,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:03:21,238 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:03:21,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:03:21,239 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:03:21,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:03:21,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:03:21,239 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:03:21,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:03:21,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:03:21,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:03:21,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:03:21,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:03:21,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:03:21,241 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:03:21,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:03:21,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:03:21,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:03:21,639 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:03:21,640 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:03:21,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-11-07 00:03:21,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f04f0cb/e014cff2b62f4aa097986d4ee9ab9712/FLAG1931c5b0b [2020-11-07 00:03:22,549 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:03:22,549 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-11-07 00:03:22,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f04f0cb/e014cff2b62f4aa097986d4ee9ab9712/FLAG1931c5b0b [2020-11-07 00:03:22,807 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f04f0cb/e014cff2b62f4aa097986d4ee9ab9712 [2020-11-07 00:03:22,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:03:22,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:03:22,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:03:22,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:03:22,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:03:22,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:03:22" (1/1) ... [2020-11-07 00:03:22,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@557f2485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:22, skipping insertion in model container [2020-11-07 00:03:22,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:03:22" (1/1) ... [2020-11-07 00:03:22,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:03:22,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:03:23,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:03:23,262 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:03:23,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:03:23,522 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:03:23,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:23 WrapperNode [2020-11-07 00:03:23,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:03:23,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:03:23,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:03:23,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:03:23,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:23" (1/1) ... [2020-11-07 00:03:23,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:23" (1/1) ... [2020-11-07 00:03:23,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:23" (1/1) ... [2020-11-07 00:03:23,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:23" (1/1) ... [2020-11-07 00:03:23,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:23" (1/1) ... [2020-11-07 00:03:23,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:23" (1/1) ... [2020-11-07 00:03:23,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:23" (1/1) ... [2020-11-07 00:03:23,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:03:23,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:03:23,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:03:23,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:03:23,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:23" (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 [2020-11-07 00:03:23,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:03:23,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:03:23,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:03:23,748 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:03:23,748 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:03:23,748 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:03:23,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:03:23,749 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:03:23,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:03:23,749 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:03:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:03:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:03:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:03:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:03:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:03:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 00:03:23,751 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:03:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:03:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:03:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:03:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:03:23,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:03:23,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:03:23,758 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:03:23,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 00:03:23,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 00:03:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:03:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:03:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:03:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:03:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:03:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:03:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:03:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:03:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 00:03:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 00:03:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:03:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:03:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:03:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:03:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:03:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:03:23,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:03:23,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:03:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:03:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:03:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:03:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:03:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:03:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:03:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:03:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:03:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:03:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:03:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:03:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:03:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:03:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:03:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:03:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:03:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:03:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:03:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:03:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:03:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:03:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:03:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:03:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 00:03:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 00:03:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:03:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:03:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:03:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:03:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:03:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:03:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:03:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 00:03:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 00:03:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 00:03:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:03:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:03:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:03:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:03:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:03:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:03:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:03:23,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:03:23,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:03:23,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:03:23,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:03:23,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:03:23,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:03:23,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:03:23,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:03:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:03:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:03:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:03:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:03:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:03:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:03:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:03:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:03:24,831 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:03:24,832 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:03:24,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:03:24 BoogieIcfgContainer [2020-11-07 00:03:24,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:03:24,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:03:24,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:03:24,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:03:24,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:03:22" (1/3) ... [2020-11-07 00:03:24,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75516fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:03:24, skipping insertion in model container [2020-11-07 00:03:24,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:23" (2/3) ... [2020-11-07 00:03:24,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75516fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:03:24, skipping insertion in model container [2020-11-07 00:03:24,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:03:24" (3/3) ... [2020-11-07 00:03:24,844 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2020-11-07 00:03:24,860 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:03:24,864 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:03:24,877 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:03:24,902 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:03:24,902 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:03:24,902 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:03:24,902 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:03:24,902 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:03:24,902 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:03:24,902 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:03:24,903 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:03:24,926 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states. [2020-11-07 00:03:24,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:03:24,953 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:24,954 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] [2020-11-07 00:03:24,954 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:03:24,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:24,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1383843617, now seen corresponding path program 1 times [2020-11-07 00:03:24,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:24,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554177353] [2020-11-07 00:03:24,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:25,053 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:25,771 WARN L194 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:25,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:25,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:25,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:25,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:25,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:25,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:03:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:25,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:03:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:25,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:03:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:26,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554177353] [2020-11-07 00:03:26,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:26,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:03:26,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809816788] [2020-11-07 00:03:26,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:03:26,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:26,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:03:26,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:03:26,049 INFO L87 Difference]: Start difference. First operand 367 states. Second operand 3 states. [2020-11-07 00:03:28,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:28,087 INFO L93 Difference]: Finished difference Result 597 states and 711 transitions. [2020-11-07 00:03:28,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:03:28,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:03:28,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:28,113 INFO L225 Difference]: With dead ends: 597 [2020-11-07 00:03:28,113 INFO L226 Difference]: Without dead ends: 360 [2020-11-07 00:03:28,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:03:28,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-11-07 00:03:28,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 313. [2020-11-07 00:03:28,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-11-07 00:03:28,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 345 transitions. [2020-11-07 00:03:28,412 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 345 transitions. Word has length 159 [2020-11-07 00:03:28,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:28,415 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 345 transitions. [2020-11-07 00:03:28,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:03:28,415 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 345 transitions. [2020-11-07 00:03:28,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:03:28,432 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:28,433 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] [2020-11-07 00:03:28,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:03:28,434 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:03:28,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:28,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1550209003, now seen corresponding path program 1 times [2020-11-07 00:03:28,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:28,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1000105112] [2020-11-07 00:03:28,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:28,443 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:29,003 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:29,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:29,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:29,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:29,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:29,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:29,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:03:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:29,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:03:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:29,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:03:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:29,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:29,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1000105112] [2020-11-07 00:03:29,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:29,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:03:29,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549736371] [2020-11-07 00:03:29,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:03:29,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:29,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:03:29,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:03:29,157 INFO L87 Difference]: Start difference. First operand 313 states and 345 transitions. Second operand 4 states. [2020-11-07 00:03:30,023 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:03:31,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:31,829 INFO L93 Difference]: Finished difference Result 505 states and 574 transitions. [2020-11-07 00:03:31,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:03:31,830 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:03:31,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:31,841 INFO L225 Difference]: With dead ends: 505 [2020-11-07 00:03:31,842 INFO L226 Difference]: Without dead ends: 343 [2020-11-07 00:03:31,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:03:31,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-11-07 00:03:31,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 303. [2020-11-07 00:03:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-11-07 00:03:31,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 332 transitions. [2020-11-07 00:03:31,989 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 332 transitions. Word has length 160 [2020-11-07 00:03:31,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:31,989 INFO L481 AbstractCegarLoop]: Abstraction has 303 states and 332 transitions. [2020-11-07 00:03:31,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:03:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 332 transitions. [2020-11-07 00:03:31,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:03:31,992 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:31,993 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] [2020-11-07 00:03:31,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:03:31,993 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:03:31,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:31,994 INFO L82 PathProgramCache]: Analyzing trace with hash 341651726, now seen corresponding path program 1 times [2020-11-07 00:03:31,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:31,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966981333] [2020-11-07 00:03:31,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:31,998 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,626 WARN L194 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:32,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:03:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:03:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:03:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:32,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966981333] [2020-11-07 00:03:32,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:32,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:03:32,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333748811] [2020-11-07 00:03:32,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:03:32,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:32,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:03:32,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:03:32,874 INFO L87 Difference]: Start difference. First operand 303 states and 332 transitions. Second operand 9 states. [2020-11-07 00:03:33,543 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:34,049 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:03:34,444 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:03:34,806 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:35,226 WARN L194 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:35,632 WARN L194 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:36,812 WARN L194 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:03:40,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:40,665 INFO L93 Difference]: Finished difference Result 830 states and 960 transitions. [2020-11-07 00:03:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:03:40,666 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:03:40,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:40,674 INFO L225 Difference]: With dead ends: 830 [2020-11-07 00:03:40,674 INFO L226 Difference]: Without dead ends: 642 [2020-11-07 00:03:40,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:03:40,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-11-07 00:03:40,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 565. [2020-11-07 00:03:40,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2020-11-07 00:03:40,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 638 transitions. [2020-11-07 00:03:40,977 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 638 transitions. Word has length 169 [2020-11-07 00:03:40,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:40,977 INFO L481 AbstractCegarLoop]: Abstraction has 565 states and 638 transitions. [2020-11-07 00:03:40,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:03:40,978 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 638 transitions. [2020-11-07 00:03:40,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:03:40,982 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:40,982 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, 1] [2020-11-07 00:03:40,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:03:40,983 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:03:40,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:40,984 INFO L82 PathProgramCache]: Analyzing trace with hash -2030091801, now seen corresponding path program 1 times [2020-11-07 00:03:40,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:40,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343718791] [2020-11-07 00:03:40,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:40,988 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:41,461 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:41,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:41,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:41,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:41,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:41,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:41,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:03:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:41,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:03:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:41,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:03:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:41,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:03:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:41,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:41,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343718791] [2020-11-07 00:03:41,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:41,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:03:41,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292463365] [2020-11-07 00:03:41,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:03:41,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:41,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:03:41,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:03:41,667 INFO L87 Difference]: Start difference. First operand 565 states and 638 transitions. Second operand 9 states. [2020-11-07 00:03:42,350 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:45,279 WARN L194 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:45,753 WARN L194 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:46,266 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:46,798 WARN L194 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:47,226 WARN L194 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:47,645 WARN L194 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:48,061 WARN L194 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:49,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:49,804 INFO L93 Difference]: Finished difference Result 1559 states and 1880 transitions. [2020-11-07 00:03:49,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:03:49,805 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:03:49,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:49,813 INFO L225 Difference]: With dead ends: 1559 [2020-11-07 00:03:49,813 INFO L226 Difference]: Without dead ends: 1109 [2020-11-07 00:03:49,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:03:49,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2020-11-07 00:03:50,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1001. [2020-11-07 00:03:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1001 states. [2020-11-07 00:03:50,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1157 transitions. [2020-11-07 00:03:50,262 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1157 transitions. Word has length 178 [2020-11-07 00:03:50,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:50,263 INFO L481 AbstractCegarLoop]: Abstraction has 1001 states and 1157 transitions. [2020-11-07 00:03:50,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:03:50,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1157 transitions. [2020-11-07 00:03:50,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:03:50,269 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:50,269 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, 1, 1, 1, 1, 1, 1] [2020-11-07 00:03:50,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:03:50,270 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:03:50,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:50,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1768416710, now seen corresponding path program 1 times [2020-11-07 00:03:50,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:50,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207084986] [2020-11-07 00:03:50,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:50,275 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:50,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:50,439 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:50,649 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:03:50,649 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:03:50,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:03:50,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:03:50 BoogieIcfgContainer [2020-11-07 00:03:50,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:03:50,679 INFO L168 Benchmark]: Toolchain (without parser) took 27864.03 ms. Allocated memory was 166.7 MB in the beginning and 502.3 MB in the end (delta: 335.5 MB). Free memory was 142.8 MB in the beginning and 323.5 MB in the end (delta: -180.8 MB). Peak memory consumption was 155.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:50,680 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 101.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:03:50,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.55 ms. Allocated memory is still 166.7 MB. Free memory was 142.2 MB in the beginning and 119.8 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:50,682 INFO L168 Benchmark]: Boogie Preprocessor took 141.36 ms. Allocated memory is still 166.7 MB. Free memory was 119.8 MB in the beginning and 148.1 MB in the end (delta: -28.3 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:50,682 INFO L168 Benchmark]: RCFGBuilder took 1168.90 ms. Allocated memory is still 166.7 MB. Free memory was 148.1 MB in the beginning and 82.7 MB in the end (delta: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:50,683 INFO L168 Benchmark]: TraceAbstraction took 25840.57 ms. Allocated memory was 166.7 MB in the beginning and 502.3 MB in the end (delta: 335.5 MB). Free memory was 82.2 MB in the beginning and 323.5 MB in the end (delta: -241.3 MB). Peak memory consumption was 94.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:50,687 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 101.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 698.55 ms. Allocated memory is still 166.7 MB. Free memory was 142.2 MB in the beginning and 119.8 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 141.36 ms. Allocated memory is still 166.7 MB. Free memory was 119.8 MB in the beginning and 148.1 MB in the end (delta: -28.3 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1168.90 ms. Allocated memory is still 166.7 MB. Free memory was 148.1 MB in the beginning and 82.7 MB in the end (delta: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 25840.57 ms. Allocated memory was 166.7 MB in the beginning and 502.3 MB in the end (delta: 335.5 MB). Free memory was 82.2 MB in the beginning and 323.5 MB in the end (delta: -241.3 MB). Peak memory consumption was 94.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L190] int pumpRunning = 0; [L191] int systemActive = 1; [L514] int waterLevel = 1; [L515] int methaneLevelCritical = 0; [L829] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L447] int splverifierCounter ; [L448] int tmp ; [L449] int tmp___0 ; [L450] int tmp___1 ; [L451] int tmp___2 ; [L454] splverifierCounter = 0 [L456] COND TRUE 1 [L458] COND TRUE splverifierCounter < 4 [L464] tmp = __VERIFIER_nondet_int() [L466] COND TRUE \read(tmp) [L468] CALL waterRise() [L532] COND TRUE waterLevel < 2 [L533] waterLevel = waterLevel + 1 [L468] RET waterRise() [L474] tmp___0 = __VERIFIER_nondet_int() [L476] COND FALSE !(\read(tmp___0)) [L484] tmp___2 = __VERIFIER_nondet_int() [L486] COND FALSE !(\read(tmp___2)) [L490] tmp___1 = __VERIFIER_nondet_int() [L492] COND TRUE \read(tmp___1) [L494] CALL stopSystem() [L434] COND FALSE !(\read(pumpRunning)) [L441] systemActive = 0 [L494] RET stopSystem() [L501] CALL timeShift() [L198] COND FALSE !(\read(pumpRunning)) [L205] COND FALSE !(\read(systemActive)) [L213] CALL __utac_acc__Specification3_spec__1() [L627] int tmp ; [L628] int tmp___0 ; [L629] int tmp___1 ; [L633] CALL, EXPR isMethaneLevelCritical() [L553] int retValue_acc ; [L556] retValue_acc = methaneLevelCritical [L557] return (retValue_acc); [L633] RET, EXPR isMethaneLevelCritical() [L633] tmp = isMethaneLevelCritical() [L635] COND FALSE !(\read(tmp)) [L639] CALL, EXPR getWaterLevel() [L585] int retValue_acc ; [L588] retValue_acc = waterLevel [L589] return (retValue_acc); [L639] RET, EXPR getWaterLevel() [L639] tmp___0 = getWaterLevel() [L641] COND TRUE tmp___0 == 2 [L643] CALL, EXPR isPumpRunning() [L348] int retValue_acc ; [L351] retValue_acc = pumpRunning [L352] return (retValue_acc); [L643] RET, EXPR isPumpRunning() [L643] tmp___1 = isPumpRunning() [L645] COND FALSE !(\read(tmp___1)) [L649] CALL __automaton_fail() [L621] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product63.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 683 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 20.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1196 SDtfs, 1765 SDslu, 1373 SDs, 0 SdLazy, 3911 SolverSat, 613 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1001occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 272 StatesRemovedByMinimization, 4 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...