/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:46:52,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:46:52,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:46:52,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:46:52,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:46:52,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:46:52,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:46:52,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:46:52,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:46:52,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:46:52,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:46:52,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:46:52,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:46:52,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:46:52,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:46:52,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:46:52,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:46:52,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:46:52,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:46:52,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:46:52,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:46:52,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:46:52,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:46:52,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:46:52,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 10:46:52,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 10:46:52,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 10:46:52,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 10:46:52,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 10:46:52,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 10:46:52,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 10:46:52,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 10:46:52,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 10:46:52,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 10:46:52,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 10:46:52,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 10:46:52,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 10:46:52,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 10:46:52,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:46:52,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:46:52,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:46:52,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 10:46:52,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:46:52,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:46:52,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:46:52,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:46:52,773 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:46:52,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:46:52,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:46:52,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:46:52,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:46:52,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:46:52,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:46:52,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:46:52,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:46:52,776 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:46:52,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:46:52,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:46:52,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:46:52,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:46:52,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:46:52,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:46:52,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:46:52,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:46:52,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:46:52,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:46:52,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:46:52,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:46:52,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:46:52,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:46:52,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:46:52,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:46:53,069 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:46:53,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:46:53,086 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:46:53,087 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:46:53,088 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:46:53,089 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-07-07 10:46:53,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ebb11f4/53191a3fb2cf4907b6fe45e0b958b7f4/FLAG488284d05 [2020-07-07 10:46:53,748 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:46:53,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-07-07 10:46:53,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ebb11f4/53191a3fb2cf4907b6fe45e0b958b7f4/FLAG488284d05 [2020-07-07 10:46:54,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ebb11f4/53191a3fb2cf4907b6fe45e0b958b7f4 [2020-07-07 10:46:54,073 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:46:54,075 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:46:54,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:46:54,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:46:54,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:46:54,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:46:54" (1/1) ... [2020-07-07 10:46:54,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d265ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:54, skipping insertion in model container [2020-07-07 10:46:54,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:46:54" (1/1) ... [2020-07-07 10:46:54,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:46:54,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:46:54,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:46:54,648 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:46:54,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:46:54,776 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:46:54,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:54 WrapperNode [2020-07-07 10:46:54,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:46:54,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:46:54,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:46:54,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:46:54,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:54" (1/1) ... [2020-07-07 10:46:54,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:54" (1/1) ... [2020-07-07 10:46:54,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:54" (1/1) ... [2020-07-07 10:46:54,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:54" (1/1) ... [2020-07-07 10:46:54,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:54" (1/1) ... [2020-07-07 10:46:54,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:54" (1/1) ... [2020-07-07 10:46:54,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:54" (1/1) ... [2020-07-07 10:46:54,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:46:54,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:46:54,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:46:54,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:46:54,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:54" (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 [2020-07-07 10:46:54,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:46:54,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:46:54,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 10:46:54,951 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 10:46:54,951 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 10:46:54,951 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 10:46:54,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 10:46:54,952 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 10:46:54,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 10:46:54,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 10:46:54,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 10:46:54,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 10:46:54,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 10:46:54,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 10:46:54,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 10:46:54,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 10:46:54,955 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 10:46:54,956 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 10:46:54,956 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 10:46:54,956 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 10:46:54,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-07 10:46:54,956 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 10:46:54,956 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 10:46:54,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 10:46:54,957 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 10:46:54,958 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:46:54,958 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 10:46:54,958 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 10:46:54,959 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 10:46:54,959 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 10:46:54,959 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-07 10:46:54,959 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 10:46:54,959 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 10:46:54,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 10:46:54,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 10:46:54,960 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 10:46:54,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 10:46:54,960 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 10:46:54,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 10:46:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:46:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 10:46:54,962 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 10:46:54,962 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 10:46:54,962 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 10:46:54,962 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 10:46:54,962 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 10:46:54,962 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 10:46:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 10:46:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 10:46:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:46:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 10:46:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 10:46:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 10:46:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 10:46:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 10:46:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 10:46:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:46:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 10:46:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 10:46:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:46:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 10:46:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 10:46:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:46:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 10:46:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 10:46:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 10:46:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 10:46:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 10:46:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 10:46:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 10:46:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 10:46:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 10:46:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-07 10:46:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 10:46:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 10:46:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 10:46:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 10:46:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 10:46:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 10:46:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 10:46:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:46:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 10:46:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 10:46:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 10:46:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 10:46:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 10:46:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 10:46:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-07 10:46:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 10:46:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:46:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 10:46:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:46:55,992 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:46:55,992 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 10:46:55,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:46:55 BoogieIcfgContainer [2020-07-07 10:46:55,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:46:55,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:46:55,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:46:56,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:46:56,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:46:54" (1/3) ... [2020-07-07 10:46:56,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a17f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:46:56, skipping insertion in model container [2020-07-07 10:46:56,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:54" (2/3) ... [2020-07-07 10:46:56,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a17f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:46:56, skipping insertion in model container [2020-07-07 10:46:56,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:46:55" (3/3) ... [2020-07-07 10:46:56,007 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2020-07-07 10:46:56,018 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:46:56,026 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:46:56,040 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:46:56,065 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:46:56,065 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:46:56,065 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:46:56,065 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:46:56,066 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:46:56,066 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:46:56,066 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:46:56,066 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:46:56,090 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2020-07-07 10:46:56,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 10:46:56,099 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:46:56,100 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] [2020-07-07 10:46:56,100 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:46:56,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:46:56,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1708045389, now seen corresponding path program 1 times [2020-07-07 10:46:56,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:46:56,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875443531] [2020-07-07 10:46:56,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:46:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:56,783 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:46:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:56,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:46:56,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875443531] [2020-07-07 10:46:56,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:46:56,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 10:46:56,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790200343] [2020-07-07 10:46:56,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 10:46:56,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:46:56,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 10:46:56,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:46:56,898 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 3 states. [2020-07-07 10:46:58,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:46:58,061 INFO L93 Difference]: Finished difference Result 290 states and 375 transitions. [2020-07-07 10:46:58,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:46:58,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-07 10:46:58,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:46:58,080 INFO L225 Difference]: With dead ends: 290 [2020-07-07 10:46:58,080 INFO L226 Difference]: Without dead ends: 157 [2020-07-07 10:46:58,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:46:58,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-07-07 10:46:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 124. [2020-07-07 10:46:58,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-07-07 10:46:58,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2020-07-07 10:46:58,209 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 46 [2020-07-07 10:46:58,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:46:58,211 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2020-07-07 10:46:58,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 10:46:58,211 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2020-07-07 10:46:58,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-07 10:46:58,218 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:46:58,218 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] [2020-07-07 10:46:58,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:46:58,218 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:46:58,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:46:58,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1677032245, now seen corresponding path program 1 times [2020-07-07 10:46:58,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:46:58,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128460402] [2020-07-07 10:46:58,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:46:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,641 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:46:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:46:58,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128460402] [2020-07-07 10:46:58,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:46:58,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:46:58,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866387912] [2020-07-07 10:46:58,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:46:58,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:46:58,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:46:58,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:46:58,685 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 4 states. [2020-07-07 10:46:59,132 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:46:59,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:46:59,939 INFO L93 Difference]: Finished difference Result 219 states and 262 transitions. [2020-07-07 10:46:59,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:46:59,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-07 10:46:59,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:46:59,943 INFO L225 Difference]: With dead ends: 219 [2020-07-07 10:46:59,943 INFO L226 Difference]: Without dead ends: 141 [2020-07-07 10:46:59,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 10:46:59,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-07-07 10:46:59,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 115. [2020-07-07 10:46:59,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-07-07 10:46:59,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 131 transitions. [2020-07-07 10:46:59,982 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 131 transitions. Word has length 47 [2020-07-07 10:46:59,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:46:59,983 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 131 transitions. [2020-07-07 10:46:59,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:46:59,983 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 131 transitions. [2020-07-07 10:46:59,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-07 10:46:59,985 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:46:59,985 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] [2020-07-07 10:46:59,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:46:59,986 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:46:59,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:46:59,986 INFO L82 PathProgramCache]: Analyzing trace with hash -115096576, now seen corresponding path program 1 times [2020-07-07 10:46:59,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:46:59,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943799814] [2020-07-07 10:46:59,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:00,297 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:00,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:00,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943799814] [2020-07-07 10:47:00,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:00,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:47:00,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377324666] [2020-07-07 10:47:00,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:47:00,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:00,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:47:00,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:47:00,433 INFO L87 Difference]: Start difference. First operand 115 states and 131 transitions. Second operand 8 states. [2020-07-07 10:47:00,803 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:01,108 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:01,404 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:01,652 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:02,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:02,766 INFO L93 Difference]: Finished difference Result 232 states and 280 transitions. [2020-07-07 10:47:02,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 10:47:02,767 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-07-07 10:47:02,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:02,769 INFO L225 Difference]: With dead ends: 232 [2020-07-07 10:47:02,769 INFO L226 Difference]: Without dead ends: 141 [2020-07-07 10:47:02,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:47:02,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-07-07 10:47:02,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 115. [2020-07-07 10:47:02,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-07-07 10:47:02,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 130 transitions. [2020-07-07 10:47:02,812 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 130 transitions. Word has length 52 [2020-07-07 10:47:02,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:02,813 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 130 transitions. [2020-07-07 10:47:02,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:47:02,813 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 130 transitions. [2020-07-07 10:47:02,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-07 10:47:02,815 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:02,815 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] [2020-07-07 10:47:02,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 10:47:02,816 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:02,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:02,816 INFO L82 PathProgramCache]: Analyzing trace with hash -721685397, now seen corresponding path program 1 times [2020-07-07 10:47:02,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:02,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431233017] [2020-07-07 10:47:02,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,073 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:03,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:03,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431233017] [2020-07-07 10:47:03,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:03,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:47:03,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352295214] [2020-07-07 10:47:03,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:03,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:03,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:03,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:47:03,218 INFO L87 Difference]: Start difference. First operand 115 states and 130 transitions. Second operand 6 states. [2020-07-07 10:47:03,542 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:04,716 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:05,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:05,162 INFO L93 Difference]: Finished difference Result 320 states and 390 transitions. [2020-07-07 10:47:05,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 10:47:05,163 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-07-07 10:47:05,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:05,167 INFO L225 Difference]: With dead ends: 320 [2020-07-07 10:47:05,167 INFO L226 Difference]: Without dead ends: 229 [2020-07-07 10:47:05,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-07-07 10:47:05,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-07 10:47:05,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 186. [2020-07-07 10:47:05,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-07-07 10:47:05,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 211 transitions. [2020-07-07 10:47:05,208 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 211 transitions. Word has length 60 [2020-07-07 10:47:05,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:05,209 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 211 transitions. [2020-07-07 10:47:05,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:05,209 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 211 transitions. [2020-07-07 10:47:05,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-07 10:47:05,211 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:05,211 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] [2020-07-07 10:47:05,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 10:47:05,212 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:05,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:05,212 INFO L82 PathProgramCache]: Analyzing trace with hash -468283367, now seen corresponding path program 1 times [2020-07-07 10:47:05,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:05,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62898525] [2020-07-07 10:47:05,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,484 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:05,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62898525] [2020-07-07 10:47:05,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:05,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 10:47:05,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056480721] [2020-07-07 10:47:05,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 10:47:05,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:05,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 10:47:05,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:47:05,626 INFO L87 Difference]: Start difference. First operand 186 states and 211 transitions. Second operand 11 states. [2020-07-07 10:47:06,155 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:06,409 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:06,647 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:07,288 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:07,555 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:07,796 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:08,021 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:08,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:08,827 INFO L93 Difference]: Finished difference Result 392 states and 470 transitions. [2020-07-07 10:47:08,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 10:47:08,828 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 74 [2020-07-07 10:47:08,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:08,831 INFO L225 Difference]: With dead ends: 392 [2020-07-07 10:47:08,832 INFO L226 Difference]: Without dead ends: 230 [2020-07-07 10:47:08,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2020-07-07 10:47:08,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-07-07 10:47:08,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 191. [2020-07-07 10:47:08,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-07-07 10:47:08,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 216 transitions. [2020-07-07 10:47:08,887 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 216 transitions. Word has length 74 [2020-07-07 10:47:08,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:08,887 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 216 transitions. [2020-07-07 10:47:08,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 10:47:08,888 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 216 transitions. [2020-07-07 10:47:08,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-07 10:47:08,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:08,890 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] [2020-07-07 10:47:08,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 10:47:08,890 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:08,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:08,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1903455895, now seen corresponding path program 1 times [2020-07-07 10:47:08,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:08,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253452980] [2020-07-07 10:47:08,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:09,265 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:09,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253452980] [2020-07-07 10:47:09,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:09,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 10:47:09,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714542714] [2020-07-07 10:47:09,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 10:47:09,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:09,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 10:47:09,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:47:09,378 INFO L87 Difference]: Start difference. First operand 191 states and 216 transitions. Second operand 12 states. [2020-07-07 10:47:09,898 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:10,209 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:10,453 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:10,690 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:11,176 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:12,001 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:12,300 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:12,574 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:12,801 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:13,111 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:13,398 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:14,552 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:14,834 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:15,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:15,396 INFO L93 Difference]: Finished difference Result 692 states and 884 transitions. [2020-07-07 10:47:15,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-07 10:47:15,397 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 74 [2020-07-07 10:47:15,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:15,403 INFO L225 Difference]: With dead ends: 692 [2020-07-07 10:47:15,403 INFO L226 Difference]: Without dead ends: 525 [2020-07-07 10:47:15,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-07 10:47:15,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-07-07 10:47:15,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 463. [2020-07-07 10:47:15,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-07-07 10:47:15,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 537 transitions. [2020-07-07 10:47:15,498 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 537 transitions. Word has length 74 [2020-07-07 10:47:15,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:15,498 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 537 transitions. [2020-07-07 10:47:15,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 10:47:15,498 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 537 transitions. [2020-07-07 10:47:15,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-07 10:47:15,502 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:15,502 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:15,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 10:47:15,503 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:15,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:15,503 INFO L82 PathProgramCache]: Analyzing trace with hash -846876321, now seen corresponding path program 1 times [2020-07-07 10:47:15,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:15,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320472861] [2020-07-07 10:47:15,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,832 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-07 10:47:16,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320472861] [2020-07-07 10:47:16,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436831448] [2020-07-07 10:47:16,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:16,391 INFO L264 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-07 10:47:16,403 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:16,474 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-07 10:47:16,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:16,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 12 [2020-07-07 10:47:16,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658279560] [2020-07-07 10:47:16,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 10:47:16,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:16,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 10:47:16,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:47:16,478 INFO L87 Difference]: Start difference. First operand 463 states and 537 transitions. Second operand 5 states. [2020-07-07 10:47:16,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:16,667 INFO L93 Difference]: Finished difference Result 899 states and 1069 transitions. [2020-07-07 10:47:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:47:16,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2020-07-07 10:47:16,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:16,673 INFO L225 Difference]: With dead ends: 899 [2020-07-07 10:47:16,673 INFO L226 Difference]: Without dead ends: 460 [2020-07-07 10:47:16,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:47:16,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-07-07 10:47:16,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2020-07-07 10:47:16,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-07-07 10:47:16,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 532 transitions. [2020-07-07 10:47:16,815 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 532 transitions. Word has length 126 [2020-07-07 10:47:16,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:16,816 INFO L479 AbstractCegarLoop]: Abstraction has 460 states and 532 transitions. [2020-07-07 10:47:16,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 10:47:16,816 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 532 transitions. [2020-07-07 10:47:16,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-07 10:47:16,819 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:16,820 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:17,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-07 10:47:17,035 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:17,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:17,036 INFO L82 PathProgramCache]: Analyzing trace with hash 153864145, now seen corresponding path program 1 times [2020-07-07 10:47:17,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:17,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043545572] [2020-07-07 10:47:17,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,378 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,649 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-07 10:47:17,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043545572] [2020-07-07 10:47:17,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856224522] [2020-07-07 10:47:17,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,821 INFO L264 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-07 10:47:17,829 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:17,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:17,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 17 [2020-07-07 10:47:17,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338078738] [2020-07-07 10:47:17,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:47:17,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:17,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:47:17,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-07 10:47:17,941 INFO L87 Difference]: Start difference. First operand 460 states and 532 transitions. Second operand 8 states. [2020-07-07 10:47:19,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:19,211 INFO L93 Difference]: Finished difference Result 1095 states and 1395 transitions. [2020-07-07 10:47:19,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 10:47:19,212 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 134 [2020-07-07 10:47:19,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:19,218 INFO L225 Difference]: With dead ends: 1095 [2020-07-07 10:47:19,219 INFO L226 Difference]: Without dead ends: 777 [2020-07-07 10:47:19,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 177 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2020-07-07 10:47:19,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-07-07 10:47:19,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 695. [2020-07-07 10:47:19,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-07-07 10:47:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 834 transitions. [2020-07-07 10:47:19,453 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 834 transitions. Word has length 134 [2020-07-07 10:47:19,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:19,453 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 834 transitions. [2020-07-07 10:47:19,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:47:19,453 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 834 transitions. [2020-07-07 10:47:19,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-07 10:47:19,458 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:19,458 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:19,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:19,673 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:19,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:19,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1087116067, now seen corresponding path program 1 times [2020-07-07 10:47:19,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:19,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128160036] [2020-07-07 10:47:19,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,927 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,080 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-07 10:47:20,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128160036] [2020-07-07 10:47:20,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243551618] [2020-07-07 10:47:20,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:20,273 INFO L264 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:20,279 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:20,318 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-07 10:47:20,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:20,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-07 10:47:20,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954268039] [2020-07-07 10:47:20,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:20,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:20,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:20,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-07 10:47:20,321 INFO L87 Difference]: Start difference. First operand 695 states and 834 transitions. Second operand 6 states. [2020-07-07 10:47:20,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:20,491 INFO L93 Difference]: Finished difference Result 1205 states and 1492 transitions. [2020-07-07 10:47:20,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 10:47:20,492 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2020-07-07 10:47:20,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:20,496 INFO L225 Difference]: With dead ends: 1205 [2020-07-07 10:47:20,497 INFO L226 Difference]: Without dead ends: 534 [2020-07-07 10:47:20,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 163 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:47:20,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2020-07-07 10:47:20,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 532. [2020-07-07 10:47:20,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-07-07 10:47:20,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 634 transitions. [2020-07-07 10:47:20,615 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 634 transitions. Word has length 126 [2020-07-07 10:47:20,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:20,616 INFO L479 AbstractCegarLoop]: Abstraction has 532 states and 634 transitions. [2020-07-07 10:47:20,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:20,616 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 634 transitions. [2020-07-07 10:47:20,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-07 10:47:20,618 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:20,618 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:20,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:20,834 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:20,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:20,835 INFO L82 PathProgramCache]: Analyzing trace with hash 942189914, now seen corresponding path program 1 times [2020-07-07 10:47:20,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:20,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781917471] [2020-07-07 10:47:20,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,125 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,301 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-07 10:47:21,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781917471] [2020-07-07 10:47:21,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103630648] [2020-07-07 10:47:21,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,486 INFO L264 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:21,495 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:21,615 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:21,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 10:47:21,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 17 [2020-07-07 10:47:21,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354425548] [2020-07-07 10:47:21,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-07 10:47:21,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:21,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-07 10:47:21,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-07-07 10:47:21,618 INFO L87 Difference]: Start difference. First operand 532 states and 634 transitions. Second operand 17 states. [2020-07-07 10:47:22,092 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:22,813 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:23,896 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-07 10:47:24,197 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:24,463 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:24,941 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-07-07 10:47:25,236 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:25,506 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:26,431 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:26,682 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:27,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:27,620 INFO L93 Difference]: Finished difference Result 1085 states and 1368 transitions. [2020-07-07 10:47:27,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-07 10:47:27,620 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 130 [2020-07-07 10:47:27,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:27,625 INFO L225 Difference]: With dead ends: 1085 [2020-07-07 10:47:27,625 INFO L226 Difference]: Without dead ends: 631 [2020-07-07 10:47:27,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 173 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=345, Invalid=987, Unknown=0, NotChecked=0, Total=1332 [2020-07-07 10:47:27,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2020-07-07 10:47:27,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 520. [2020-07-07 10:47:27,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2020-07-07 10:47:27,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 618 transitions. [2020-07-07 10:47:27,738 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 618 transitions. Word has length 130 [2020-07-07 10:47:27,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:27,739 INFO L479 AbstractCegarLoop]: Abstraction has 520 states and 618 transitions. [2020-07-07 10:47:27,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-07 10:47:27,739 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 618 transitions. [2020-07-07 10:47:27,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-07 10:47:27,741 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:27,742 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:27,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:27,956 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:27,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:27,956 INFO L82 PathProgramCache]: Analyzing trace with hash 223073758, now seen corresponding path program 2 times [2020-07-07 10:47:27,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:27,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003517294] [2020-07-07 10:47:27,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:47:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:47:28,537 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:47:28,537 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:47:28,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 10:47:28,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:47:28 BoogieIcfgContainer [2020-07-07 10:47:28,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:47:28,792 INFO L168 Benchmark]: Toolchain (without parser) took 34712.37 ms. Allocated memory was 145.2 MB in the beginning and 644.3 MB in the end (delta: 499.1 MB). Free memory was 101.9 MB in the beginning and 553.2 MB in the end (delta: -451.3 MB). Peak memory consumption was 523.6 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:28,793 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-07 10:47:28,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.32 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 101.7 MB in the beginning and 169.3 MB in the end (delta: -67.6 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:28,800 INFO L168 Benchmark]: Boogie Preprocessor took 92.41 ms. Allocated memory is still 202.4 MB. Free memory was 169.3 MB in the beginning and 165.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:28,801 INFO L168 Benchmark]: RCFGBuilder took 1128.10 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 165.1 MB in the beginning and 194.7 MB in the end (delta: -29.6 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:28,801 INFO L168 Benchmark]: TraceAbstraction took 32785.62 ms. Allocated memory was 235.4 MB in the beginning and 644.3 MB in the end (delta: 408.9 MB). Free memory was 194.7 MB in the beginning and 553.2 MB in the end (delta: -358.5 MB). Peak memory consumption was 526.3 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:28,808 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 700.32 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 101.7 MB in the beginning and 169.3 MB in the end (delta: -67.6 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.41 ms. Allocated memory is still 202.4 MB. Free memory was 169.3 MB in the beginning and 165.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1128.10 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 165.1 MB in the beginning and 194.7 MB in the end (delta: -29.6 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32785.62 ms. Allocated memory was 235.4 MB in the beginning and 644.3 MB in the end (delta: 408.9 MB). Free memory was 194.7 MB in the beginning and 553.2 MB in the end (delta: -358.5 MB). Peak memory consumption was 526.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 924]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L573] int cleanupTimeShifts = 4; [L742] int pumpRunning = 0; [L743] int systemActive = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=140, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L649] int retValue_acc ; [L650] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L654] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L656] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L656] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L656] tmp = valid_product() [L658] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L660] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L661] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L643] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L674] int splverifierCounter ; [L675] int tmp ; [L676] int tmp___0 ; [L677] int tmp___1 ; [L678] int tmp___2 ; [L681] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L683] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L691] tmp = __VERIFIER_nondet_int() [L693] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L695] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___2)) [L719] tmp___1 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L728] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L749] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L758] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L778] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L781] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L783] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L893] int retValue_acc ; [L894] int tmp ; [L895] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L899] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] tmp = isHighWaterSensorDry() [L901] COND FALSE !(\read(tmp)) [L904] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L906] retValue_acc = tmp___0 [L907] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L783] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L783] tmp = isHighWaterLevel() [L785] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L787] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L812] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L816] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L837] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L841] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] retValue_acc = isMethaneLevelCritical() [L843] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L816] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L816] tmp = isMethaneAlarm() [L818] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L822] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L806] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L822] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L787] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L758] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L764] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L548] int tmp ; [L549] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L553] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L553] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L764] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L728] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L683] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L685] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___2)) [L719] tmp___1 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L728] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L749] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L751] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L751] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L756] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L758] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L778] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L781] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L796] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L758] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L764] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L548] int tmp ; [L549] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L553] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L553] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L764] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L728] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L683] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___2)) [L719] tmp___1 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L728] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L749] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L751] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L751] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L756] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L758] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L778] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L781] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L796] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L758] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L764] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L548] int tmp ; [L549] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L553] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L553] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L553] tmp = getWaterLevel() [L555] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L557] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L848] int retValue_acc ; [L851] retValue_acc = pumpRunning [L852] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L557] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L557] tmp___0 = isPumpRunning() [L559] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L561] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 226 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.4s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 23.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1261 SDtfs, 2508 SDslu, 2119 SDs, 0 SdLazy, 5866 SolverSat, 1708 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 941 GetRequests, 798 SyntacticMatches, 7 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=695occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 424 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 1551 NumberOfCodeBlocks, 1551 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1371 ConstructedInterpolants, 0 QuantifiedInterpolants, 408688 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3373 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 14 InterpolantComputations, 9 PerfectInterpolantSequences, 186/208 InterpolantCoveringCapability, 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...