/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_product06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 15:22:13,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:22:13,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:22:13,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:22:13,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:22:13,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:22:13,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:22:13,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:22:13,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:22:13,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:22:13,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:22:13,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:22:13,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:22:13,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:22:13,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:22:13,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:22:13,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:22:13,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:22:13,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:22:13,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:22:13,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:22:13,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:22:13,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:22:13,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:22:13,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:22:13,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:22:13,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:22:13,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:22:13,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:22:13,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:22:13,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:22:13,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:22:13,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:22:13,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:22:13,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:22:13,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:22:13,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:22:13,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:22:13,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:22:13,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:22:13,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:22:13,687 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 15:22:13,703 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:22:13,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:22:13,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:22:13,706 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:22:13,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:22:13,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:22:13,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:22:13,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:22:13,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:22:13,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:22:13,708 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:22:13,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:22:13,709 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:22:13,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:22:13,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:22:13,709 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:22:13,710 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:22:13,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:22:13,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:22:13,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:22:13,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:22:13,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:22:13,711 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:22:14,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:22:14,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:22:14,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:22:14,132 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:22:14,134 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:22:14,135 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2020-09-04 15:22:14,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fd70da89/624af0fe9f254bdcaa50fc244f646f3c/FLAGbb6bc42c9 [2020-09-04 15:22:14,794 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:22:14,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2020-09-04 15:22:14,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fd70da89/624af0fe9f254bdcaa50fc244f646f3c/FLAGbb6bc42c9 [2020-09-04 15:22:15,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fd70da89/624af0fe9f254bdcaa50fc244f646f3c [2020-09-04 15:22:15,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:22:15,091 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:22:15,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:22:15,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:22:15,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:22:15,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:22:15" (1/1) ... [2020-09-04 15:22:15,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d265cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:15, skipping insertion in model container [2020-09-04 15:22:15,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:22:15" (1/1) ... [2020-09-04 15:22:15,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:22:15,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:22:15,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:22:15,560 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:22:15,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:22:15,778 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:22:15,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:15 WrapperNode [2020-09-04 15:22:15,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:22:15,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:22:15,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:22:15,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:22:15,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:15" (1/1) ... [2020-09-04 15:22:15,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:15" (1/1) ... [2020-09-04 15:22:15,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:15" (1/1) ... [2020-09-04 15:22:15,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:15" (1/1) ... [2020-09-04 15:22:15,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:15" (1/1) ... [2020-09-04 15:22:15,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:15" (1/1) ... [2020-09-04 15:22:15,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:15" (1/1) ... [2020-09-04 15:22:15,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:22:15,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:22:15,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:22:15,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:22:15,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 15:22:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:22:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:22:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:22:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:22:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:22:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:22:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:22:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:22:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:22:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 15:22:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:22:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:22:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:22:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:22:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:22:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:22:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 15:22:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:22:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:22:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:22:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:22:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:22:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:22:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:22:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:22:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:22:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:22:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:22:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:22:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:22:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:22:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:22:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:22:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:22:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:22:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:22:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:22:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:22:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:22:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:22:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:22:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:22:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:22:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:22:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:22:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:22:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:22:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:22:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:22:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:22:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:22:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:22:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 15:22:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:22:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:22:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 15:22:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:22:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:22:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:22:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:22:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:22:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:22:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:22:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:22:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:22:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:22:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:22:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:22:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:22:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:22:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:22:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:22:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:22:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:22:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:22:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:22:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:22:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:22:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:22:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:22:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:22:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:22:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:22:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:22:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:22:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:22:17,045 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:22:17,045 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:22:17,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:22:17 BoogieIcfgContainer [2020-09-04 15:22:17,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:22:17,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:22:17,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:22:17,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:22:17,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:22:15" (1/3) ... [2020-09-04 15:22:17,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4271aa54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:22:17, skipping insertion in model container [2020-09-04 15:22:17,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:22:15" (2/3) ... [2020-09-04 15:22:17,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4271aa54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:22:17, skipping insertion in model container [2020-09-04 15:22:17,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:22:17" (3/3) ... [2020-09-04 15:22:17,062 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c [2020-09-04 15:22:17,073 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:22:17,084 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:22:17,105 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:22:17,129 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:22:17,129 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:22:17,129 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:22:17,129 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:22:17,129 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:22:17,130 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:22:17,130 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:22:17,130 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:22:17,154 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states. [2020-09-04 15:22:17,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 15:22:17,178 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:22:17,179 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] [2020-09-04 15:22:17,180 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:22:17,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:22:17,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1857034691, now seen corresponding path program 1 times [2020-09-04 15:22:17,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:22:17,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746259343] [2020-09-04 15:22:17,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:22:17,269 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:22:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:17,997 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:22:18,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:22:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:18,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:22:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:18,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:22:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:18,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:22:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:18,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:22:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:18,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:22:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:18,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:22:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:18,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:22:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:18,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:22:18,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746259343] [2020-09-04 15:22:18,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:22:18,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:22:18,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761871231] [2020-09-04 15:22:18,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:22:18,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:22:18,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:22:18,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:22:18,308 INFO L87 Difference]: Start difference. First operand 279 states. Second operand 3 states. [2020-09-04 15:22:19,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:22:19,549 INFO L93 Difference]: Finished difference Result 422 states and 505 transitions. [2020-09-04 15:22:19,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:22:19,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 15:22:19,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:22:19,572 INFO L225 Difference]: With dead ends: 422 [2020-09-04 15:22:19,572 INFO L226 Difference]: Without dead ends: 268 [2020-09-04 15:22:19,578 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 [2020-09-04 15:22:19,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-09-04 15:22:19,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2020-09-04 15:22:19,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-04 15:22:19,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 246 transitions. [2020-09-04 15:22:19,718 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 246 transitions. Word has length 153 [2020-09-04 15:22:19,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:22:19,719 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 246 transitions. [2020-09-04 15:22:19,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:22:19,719 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 246 transitions. [2020-09-04 15:22:19,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 15:22:19,724 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:22:19,724 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] [2020-09-04 15:22:19,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:22:19,725 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:22:19,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:22:19,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1018336135, now seen corresponding path program 1 times [2020-09-04 15:22:19,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:22:19,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944981256] [2020-09-04 15:22:19,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:22:19,729 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:22:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:20,087 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:22:20,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:22:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:20,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:22:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:20,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:22:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:20,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:22:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:20,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:22:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:20,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 15:22:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:20,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 15:22:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:20,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 15:22:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:20,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:22:20,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944981256] [2020-09-04 15:22:20,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:22:20,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:22:20,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21059012] [2020-09-04 15:22:20,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:22:20,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:22:20,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:22:20,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:22:20,198 INFO L87 Difference]: Start difference. First operand 228 states and 246 transitions. Second operand 4 states. [2020-09-04 15:22:20,860 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:22:21,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:22:21,627 INFO L93 Difference]: Finished difference Result 335 states and 376 transitions. [2020-09-04 15:22:21,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:22:21,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 15:22:21,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:22:21,633 INFO L225 Difference]: With dead ends: 335 [2020-09-04 15:22:21,633 INFO L226 Difference]: Without dead ends: 251 [2020-09-04 15:22:21,635 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 [2020-09-04 15:22:21,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-09-04 15:22:21,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 218. [2020-09-04 15:22:21,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-04 15:22:21,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 233 transitions. [2020-09-04 15:22:21,706 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 233 transitions. Word has length 154 [2020-09-04 15:22:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:22:21,707 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 233 transitions. [2020-09-04 15:22:21,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:22:21,707 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 233 transitions. [2020-09-04 15:22:21,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 15:22:21,710 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:22:21,710 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] [2020-09-04 15:22:21,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:22:21,710 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:22:21,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:22:21,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1999578566, now seen corresponding path program 1 times [2020-09-04 15:22:21,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:22:21,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929825422] [2020-09-04 15:22:21,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:22:21,715 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:22:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:22,114 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:22:22,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:22:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:22,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:22:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:22,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:22:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:22,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:22:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:22,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:22:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:22,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:22:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:22,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 15:22:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:22,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 15:22:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:22,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 15:22:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:22,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:22:22,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929825422] [2020-09-04 15:22:22,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:22:22,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 15:22:22,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157445216] [2020-09-04 15:22:22,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 15:22:22,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:22:22,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 15:22:22,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 15:22:22,314 INFO L87 Difference]: Start difference. First operand 218 states and 233 transitions. Second operand 10 states. [2020-09-04 15:22:23,029 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:22:23,491 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:22:23,766 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 15:22:24,004 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:22:24,290 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:22:24,578 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:22:25,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:22:25,921 INFO L93 Difference]: Finished difference Result 381 states and 438 transitions. [2020-09-04 15:22:25,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 15:22:25,922 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-04 15:22:25,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:22:25,926 INFO L225 Difference]: With dead ends: 381 [2020-09-04 15:22:25,927 INFO L226 Difference]: Without dead ends: 273 [2020-09-04 15:22:25,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-09-04 15:22:25,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-04 15:22:25,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 218. [2020-09-04 15:22:25,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-04 15:22:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 232 transitions. [2020-09-04 15:22:25,995 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 232 transitions. Word has length 167 [2020-09-04 15:22:25,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:22:25,996 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 232 transitions. [2020-09-04 15:22:25,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 15:22:25,997 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 232 transitions. [2020-09-04 15:22:25,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-04 15:22:25,999 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:22:25,999 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] [2020-09-04 15:22:25,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:22:26,000 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:22:26,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:22:26,000 INFO L82 PathProgramCache]: Analyzing trace with hash -2083414273, now seen corresponding path program 1 times [2020-09-04 15:22:26,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:22:26,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910757865] [2020-09-04 15:22:26,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:22:26,003 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:22:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:26,359 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:22:26,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:22:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:26,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:22:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:26,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:22:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:26,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:22:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:26,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:22:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:26,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:22:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:26,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:22:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:26,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:22:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:26,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-04 15:22:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:26,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-04 15:22:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:26,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-04 15:22:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:26,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:22:26,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910757865] [2020-09-04 15:22:26,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:22:26,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 15:22:26,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306693936] [2020-09-04 15:22:26,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 15:22:26,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:22:26,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 15:22:26,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 15:22:26,531 INFO L87 Difference]: Start difference. First operand 218 states and 232 transitions. Second operand 10 states. [2020-09-04 15:22:27,211 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:22:29,102 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:22:29,473 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:22:29,776 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:22:30,092 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:22:30,382 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:22:30,915 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:22:31,306 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:22:31,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:22:31,893 INFO L93 Difference]: Finished difference Result 592 states and 734 transitions. [2020-09-04 15:22:31,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-04 15:22:31,893 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-09-04 15:22:31,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:22:31,899 INFO L225 Difference]: With dead ends: 592 [2020-09-04 15:22:31,900 INFO L226 Difference]: Without dead ends: 484 [2020-09-04 15:22:31,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-09-04 15:22:31,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2020-09-04 15:22:32,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 318. [2020-09-04 15:22:32,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-09-04 15:22:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 349 transitions. [2020-09-04 15:22:32,003 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 349 transitions. Word has length 175 [2020-09-04 15:22:32,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:22:32,004 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 349 transitions. [2020-09-04 15:22:32,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 15:22:32,004 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 349 transitions. [2020-09-04 15:22:32,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-04 15:22:32,007 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:22:32,007 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, 1, 1] [2020-09-04 15:22:32,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:22:32,008 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:22:32,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:22:32,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1543776953, now seen corresponding path program 1 times [2020-09-04 15:22:32,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:22:32,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262471083] [2020-09-04 15:22:32,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:22:32,011 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:22:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,361 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:22:32,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:22:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:22:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:22:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:22:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:22:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-04 15:22:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-04 15:22:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 15:22:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:22:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:22:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-04 15:22:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-04 15:22:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-04 15:22:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:22:32,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:22:32,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262471083] [2020-09-04 15:22:32,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:22:32,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 15:22:32,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410115669] [2020-09-04 15:22:32,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 15:22:32,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:22:32,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 15:22:32,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 15:22:32,581 INFO L87 Difference]: Start difference. First operand 318 states and 349 transitions. Second operand 7 states. [2020-09-04 15:22:33,069 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:22:33,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:22:33,998 INFO L93 Difference]: Finished difference Result 540 states and 628 transitions. [2020-09-04 15:22:34,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 15:22:34,000 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 185 [2020-09-04 15:22:34,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:22:34,003 INFO L225 Difference]: With dead ends: 540 [2020-09-04 15:22:34,003 INFO L226 Difference]: Without dead ends: 332 [2020-09-04 15:22:34,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-04 15:22:34,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-09-04 15:22:34,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 266. [2020-09-04 15:22:34,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-04 15:22:34,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 281 transitions. [2020-09-04 15:22:34,089 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 281 transitions. Word has length 185 [2020-09-04 15:22:34,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:22:34,089 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 281 transitions. [2020-09-04 15:22:34,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 15:22:34,090 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 281 transitions. [2020-09-04 15:22:34,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-04 15:22:34,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:22:34,093 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] [2020-09-04 15:22:34,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:22:34,093 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:22:34,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:22:34,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1398687596, now seen corresponding path program 1 times [2020-09-04 15:22:34,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:22:34,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444219546] [2020-09-04 15:22:34,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:22:34,097 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:22:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:22:34,199 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:22:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:22:34,273 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:22:34,527 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:22:34,528 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:22:34,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 15:22:34,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:22:34 BoogieIcfgContainer [2020-09-04 15:22:34,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:22:34,561 INFO L168 Benchmark]: Toolchain (without parser) took 19470.69 ms. Allocated memory was 140.0 MB in the beginning and 579.9 MB in the end (delta: 439.9 MB). Free memory was 102.1 MB in the beginning and 501.4 MB in the end (delta: -399.3 MB). Peak memory consumption was 40.6 MB. Max. memory is 7.1 GB. [2020-09-04 15:22:34,562 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. [2020-09-04 15:22:34,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.05 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 175.0 MB in the end (delta: -73.3 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2020-09-04 15:22:34,564 INFO L168 Benchmark]: Boogie Preprocessor took 102.45 ms. Allocated memory is still 204.5 MB. Free memory was 175.0 MB in the beginning and 171.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-04 15:22:34,565 INFO L168 Benchmark]: RCFGBuilder took 1169.55 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 171.1 MB in the beginning and 181.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-09-04 15:22:34,566 INFO L168 Benchmark]: TraceAbstraction took 17504.94 ms. Allocated memory was 235.9 MB in the beginning and 579.9 MB in the end (delta: 343.9 MB). Free memory was 181.4 MB in the beginning and 501.4 MB in the end (delta: -320.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-09-04 15:22:34,570 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.05 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 175.0 MB in the end (delta: -73.3 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.45 ms. Allocated memory is still 204.5 MB. Free memory was 175.0 MB in the beginning and 171.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1169.55 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 171.1 MB in the beginning and 181.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17504.94 ms. Allocated memory was 235.9 MB in the beginning and 579.9 MB in the end (delta: 343.9 MB). Free memory was 181.4 MB in the beginning and 501.4 MB in the end (delta: -320.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L96] int pumpRunning = 0; [L97] int systemActive = 1; [L309] int waterLevel = 1; [L310] int methaneLevelCritical = 0; [L389] int cleanupTimeShifts = 4; [L654] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L462] int retValue_acc ; [L463] int tmp ; [L467] FCALL select_helpers() [L468] FCALL select_features() [L469] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L469] RET, EXPR valid_product() [L469] tmp = valid_product() [L471] COND TRUE \read(tmp) [L473] FCALL setup() [L474] CALL runTest() [L456] CALL test() [L242] int splverifierCounter ; [L243] int tmp ; [L244] int tmp___0 ; [L245] int tmp___1 ; [L246] int tmp___2 ; [L249] splverifierCounter = 0 [L251] COND TRUE 1 [L253] COND TRUE splverifierCounter < 4 [L259] tmp = __VERIFIER_nondet_int() [L261] COND TRUE \read(tmp) [L263] CALL waterRise() [L327] COND TRUE waterLevel < 2 [L328] waterLevel = waterLevel + 1 [L263] RET waterRise() [L269] tmp___0 = __VERIFIER_nondet_int() [L271] COND FALSE !(\read(tmp___0)) [L279] tmp___2 = __VERIFIER_nondet_int() [L281] COND TRUE \read(tmp___2) [L283] CALL startSystem() [L233] systemActive = 1 [L283] RET startSystem() [L296] CALL timeShift() [L104] COND FALSE !(\read(pumpRunning)) [L111] COND TRUE \read(systemActive) [L113] CALL processEnvironment() [L133] int tmp ; [L136] COND FALSE !(\read(pumpRunning)) [L151] FCALL processEnvironment__wrappee__base() [L113] RET processEnvironment() [L119] CALL __utac_acc__Specification3_spec__1() [L852] int tmp ; [L853] int tmp___0 ; [L854] int tmp___1 ; [L858] CALL, EXPR isMethaneLevelCritical() [L348] int retValue_acc ; [L351] retValue_acc = methaneLevelCritical [L352] return (retValue_acc); [L858] RET, EXPR isMethaneLevelCritical() [L858] tmp = isMethaneLevelCritical() [L860] COND FALSE !(\read(tmp)) [L864] CALL, EXPR getWaterLevel() [L380] int retValue_acc ; [L383] retValue_acc = waterLevel [L384] return (retValue_acc); [L864] RET, EXPR getWaterLevel() [L864] tmp___0 = getWaterLevel() [L866] COND TRUE tmp___0 == 2 [L868] CALL, EXPR isPumpRunning() [L185] int retValue_acc ; [L188] retValue_acc = pumpRunning [L189] return (retValue_acc); [L868] RET, EXPR isPumpRunning() [L868] tmp___1 = isPumpRunning() [L870] COND FALSE !(\read(tmp___1)) [L874] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 594 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1021 SDtfs, 1693 SDslu, 1475 SDs, 0 SdLazy, 2600 SolverSat, 500 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318occurred 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: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 360 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...