/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_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:27:56,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:27:56,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:27:56,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:27:56,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:27:56,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:27:56,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:27:56,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:27:56,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:27:56,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:27:56,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:27:56,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:27:56,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:27:56,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:27:56,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:27:56,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:27:56,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:27:56,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:27:56,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:27:56,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:27:56,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:27:56,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:27:56,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:27:56,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:27:56,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 11:27:56,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 11:27:56,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 11:27:56,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 11:27:56,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 11:27:56,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 11:27:56,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 11:27:56,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 11:27:56,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 11:27:56,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 11:27:56,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 11:27:56,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 11:27:56,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 11:27:56,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 11:27:56,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:27:56,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:27:56,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:27:56,841 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 [2020-07-17 11:27:56,874 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:27:56,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:27:56,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:27:56,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:27:56,879 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:27:56,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:27:56,879 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:27:56,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:27:56,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:27:56,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:27:56,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:27:56,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:27:56,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:27:56,880 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:27:56,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:27:56,881 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:27:56,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:27:56,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:27:56,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:27:56,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:27:56,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:27:56,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:27:56,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:27:56,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:27:56,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:27:56,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:27:56,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:27:56,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:27:56,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:27:56,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:27:57,185 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:27:57,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:27:57,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:27:57,211 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:27:57,212 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:27:57,213 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-07-17 11:27:57,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8b8f3cd/23daafc05c9046bab8418def21a49a66/FLAGac3b42f26 [2020-07-17 11:27:57,875 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:27:57,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-07-17 11:27:57,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8b8f3cd/23daafc05c9046bab8418def21a49a66/FLAGac3b42f26 [2020-07-17 11:27:58,128 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f8b8f3cd/23daafc05c9046bab8418def21a49a66 [2020-07-17 11:27:58,137 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:27:58,140 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:27:58,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:27:58,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:27:58,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:27:58,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:27:58" (1/1) ... [2020-07-17 11:27:58,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c7a3e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:58, skipping insertion in model container [2020-07-17 11:27:58,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:27:58" (1/1) ... [2020-07-17 11:27:58,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:27:58,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:27:58,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:27:58,549 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:27:58,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:27:58,812 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:27:58,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:58 WrapperNode [2020-07-17 11:27:58,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:27:58,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:27:58,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:27:58,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:27:58,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:58" (1/1) ... [2020-07-17 11:27:58,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:58" (1/1) ... [2020-07-17 11:27:58,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:58" (1/1) ... [2020-07-17 11:27:58,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:58" (1/1) ... [2020-07-17 11:27:58,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:58" (1/1) ... [2020-07-17 11:27:58,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:58" (1/1) ... [2020-07-17 11:27:58,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:58" (1/1) ... [2020-07-17 11:27:58,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:27:58,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:27:58,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:27:58,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:27:58,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:58" (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 [2020-07-17 11:27:58,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:27:58,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:27:58,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 11:27:58,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 11:27:58,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 11:27:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 11:27:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 11:27:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 11:27:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 11:27:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 11:27:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-17 11:27:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-17 11:27:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 11:27:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 11:27:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 11:27:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 11:27:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 11:27:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 11:27:58,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-17 11:27:58,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-17 11:27:58,967 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-17 11:27:58,967 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 11:27:58,967 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 11:27:58,967 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 11:27:58,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 11:27:58,967 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 11:27:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 11:27:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-17 11:27:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-17 11:27:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 11:27:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 11:27:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 11:27:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 11:27:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 11:27:58,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:27:58,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-17 11:27:58,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 11:27:58,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 11:27:58,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 11:27:58,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 11:27:58,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 11:27:58,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 11:27:58,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:27:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 11:27:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 11:27:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 11:27:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 11:27:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 11:27:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 11:27:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 11:27:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 11:27:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-17 11:27:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 11:27:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 11:27:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 11:27:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 11:27:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 11:27:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 11:27:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-17 11:27:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-17 11:27:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 11:27:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 11:27:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 11:27:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 11:27:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-17 11:27:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 11:27:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 11:27:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-17 11:27:58,973 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-17 11:27:58,973 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-17 11:27:58,973 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-17 11:27:58,973 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 11:27:58,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:27:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 11:27:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 11:27:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 11:27:58,975 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 11:27:58,975 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 11:27:58,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:27:58,975 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 11:27:58,976 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 11:27:58,976 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 11:27:58,976 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 11:27:58,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 11:27:58,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 11:27:58,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:27:58,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 11:27:58,978 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 11:27:58,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:27:58,978 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 11:27:58,979 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 11:27:58,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:27:58,979 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 11:27:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 11:27:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 11:27:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:27:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 11:27:58,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:28:00,026 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:28:00,027 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 11:28:00,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:28:00 BoogieIcfgContainer [2020-07-17 11:28:00,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:28:00,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:28:00,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:28:00,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:28:00,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:27:58" (1/3) ... [2020-07-17 11:28:00,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e93be2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:28:00, skipping insertion in model container [2020-07-17 11:28:00,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:27:58" (2/3) ... [2020-07-17 11:28:00,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e93be2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:28:00, skipping insertion in model container [2020-07-17 11:28:00,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:28:00" (3/3) ... [2020-07-17 11:28:00,041 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-07-17 11:28:00,052 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:28:00,061 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:28:00,075 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:28:00,101 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:28:00,101 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:28:00,101 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:28:00,101 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:28:00,102 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:28:00,102 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:28:00,102 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:28:00,102 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:28:00,127 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-07-17 11:28:00,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-17 11:28:00,137 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:28:00,139 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] [2020-07-17 11:28:00,139 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:28:00,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:28:00,145 INFO L82 PathProgramCache]: Analyzing trace with hash 616057763, now seen corresponding path program 1 times [2020-07-17 11:28:00,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:28:00,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338070710] [2020-07-17 11:28:00,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:28:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:00,797 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:28:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:00,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:28:00,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338070710] [2020-07-17 11:28:00,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:28:00,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 11:28:00,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062485221] [2020-07-17 11:28:00,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 11:28:00,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:28:00,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 11:28:00,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:28:00,948 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 3 states. [2020-07-17 11:28:02,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:28:02,363 INFO L93 Difference]: Finished difference Result 343 states and 450 transitions. [2020-07-17 11:28:02,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 11:28:02,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-17 11:28:02,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:28:02,382 INFO L225 Difference]: With dead ends: 343 [2020-07-17 11:28:02,382 INFO L226 Difference]: Without dead ends: 185 [2020-07-17 11:28:02,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:28:02,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-07-17 11:28:02,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 149. [2020-07-17 11:28:02,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-07-17 11:28:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 178 transitions. [2020-07-17 11:28:02,480 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 178 transitions. Word has length 46 [2020-07-17 11:28:02,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:28:02,481 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 178 transitions. [2020-07-17 11:28:02,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 11:28:02,481 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 178 transitions. [2020-07-17 11:28:02,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-17 11:28:02,485 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:28:02,485 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] [2020-07-17 11:28:02,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:28:02,486 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:28:02,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:28:02,486 INFO L82 PathProgramCache]: Analyzing trace with hash -2016430514, now seen corresponding path program 1 times [2020-07-17 11:28:02,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:28:02,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017215104] [2020-07-17 11:28:02,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:28:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,818 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:28:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:02,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:28:02,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017215104] [2020-07-17 11:28:02,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:28:02,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:28:02,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205832201] [2020-07-17 11:28:02,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:28:02,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:28:02,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:28:02,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:28:02,865 INFO L87 Difference]: Start difference. First operand 149 states and 178 transitions. Second operand 4 states. [2020-07-17 11:28:03,333 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:04,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:28:04,347 INFO L93 Difference]: Finished difference Result 270 states and 333 transitions. [2020-07-17 11:28:04,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:28:04,348 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-17 11:28:04,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:28:04,352 INFO L225 Difference]: With dead ends: 270 [2020-07-17 11:28:04,352 INFO L226 Difference]: Without dead ends: 169 [2020-07-17 11:28:04,354 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 [2020-07-17 11:28:04,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-07-17 11:28:04,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 140. [2020-07-17 11:28:04,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-17 11:28:04,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2020-07-17 11:28:04,400 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 47 [2020-07-17 11:28:04,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:28:04,400 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2020-07-17 11:28:04,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:28:04,400 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2020-07-17 11:28:04,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-17 11:28:04,403 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:28:04,403 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] [2020-07-17 11:28:04,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:28:04,403 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:28:04,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:28:04,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1603631393, now seen corresponding path program 1 times [2020-07-17 11:28:04,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:28:04,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954727997] [2020-07-17 11:28:04,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:28:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:04,731 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:28:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:28:04,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954727997] [2020-07-17 11:28:04,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:28:04,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:28:04,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598845930] [2020-07-17 11:28:04,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:28:04,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:28:04,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:28:04,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:28:04,883 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand 8 states. [2020-07-17 11:28:05,312 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:28:05,652 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:28:05,903 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:28:06,137 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:28:06,873 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:09,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:28:09,044 INFO L93 Difference]: Finished difference Result 476 states and 596 transitions. [2020-07-17 11:28:09,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 11:28:09,046 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-17 11:28:09,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:28:09,053 INFO L225 Difference]: With dead ends: 476 [2020-07-17 11:28:09,053 INFO L226 Difference]: Without dead ends: 360 [2020-07-17 11:28:09,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-17 11:28:09,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-07-17 11:28:09,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 298. [2020-07-17 11:28:09,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-07-17 11:28:09,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 364 transitions. [2020-07-17 11:28:09,138 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 364 transitions. Word has length 51 [2020-07-17 11:28:09,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:28:09,138 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 364 transitions. [2020-07-17 11:28:09,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:28:09,138 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 364 transitions. [2020-07-17 11:28:09,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-17 11:28:09,141 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:28:09,142 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] [2020-07-17 11:28:09,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 11:28:09,142 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:28:09,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:28:09,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1180849517, now seen corresponding path program 1 times [2020-07-17 11:28:09,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:28:09,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255536168] [2020-07-17 11:28:09,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:28:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:09,470 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:28:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:09,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:28:09,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255536168] [2020-07-17 11:28:09,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:28:09,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:28:09,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153030762] [2020-07-17 11:28:09,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:28:09,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:28:09,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:28:09,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:28:09,551 INFO L87 Difference]: Start difference. First operand 298 states and 364 transitions. Second operand 8 states. [2020-07-17 11:28:09,986 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:28:10,863 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:28:11,290 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:28:11,619 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:28:11,886 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:28:12,485 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:13,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:28:13,605 INFO L93 Difference]: Finished difference Result 960 states and 1249 transitions. [2020-07-17 11:28:13,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 11:28:13,606 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-07-17 11:28:13,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:28:13,612 INFO L225 Difference]: With dead ends: 960 [2020-07-17 11:28:13,613 INFO L226 Difference]: Without dead ends: 686 [2020-07-17 11:28:13,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-07-17 11:28:13,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2020-07-17 11:28:13,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 551. [2020-07-17 11:28:13,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-07-17 11:28:13,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 678 transitions. [2020-07-17 11:28:13,738 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 678 transitions. Word has length 57 [2020-07-17 11:28:13,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:28:13,739 INFO L479 AbstractCegarLoop]: Abstraction has 551 states and 678 transitions. [2020-07-17 11:28:13,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:28:13,739 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 678 transitions. [2020-07-17 11:28:13,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-17 11:28:13,743 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:28:13,744 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] [2020-07-17 11:28:13,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 11:28:13,744 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:28:13,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:28:13,744 INFO L82 PathProgramCache]: Analyzing trace with hash -687352489, now seen corresponding path program 1 times [2020-07-17 11:28:13,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:28:13,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080126749] [2020-07-17 11:28:13,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:28:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:13,997 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:28:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:14,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:28:14,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080126749] [2020-07-17 11:28:14,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:28:14,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 11:28:14,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673760883] [2020-07-17 11:28:14,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 11:28:14,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:28:14,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 11:28:14,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-17 11:28:14,146 INFO L87 Difference]: Start difference. First operand 551 states and 678 transitions. Second operand 9 states. [2020-07-17 11:28:14,668 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:28:15,564 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:28:15,850 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:28:16,127 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:28:16,763 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:28:17,060 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:18,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:28:18,282 INFO L93 Difference]: Finished difference Result 1523 states and 2048 transitions. [2020-07-17 11:28:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 11:28:18,283 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-07-17 11:28:18,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:28:18,297 INFO L225 Difference]: With dead ends: 1523 [2020-07-17 11:28:18,297 INFO L226 Difference]: Without dead ends: 996 [2020-07-17 11:28:18,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-07-17 11:28:18,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2020-07-17 11:28:18,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 815. [2020-07-17 11:28:18,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2020-07-17 11:28:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1007 transitions. [2020-07-17 11:28:18,512 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1007 transitions. Word has length 61 [2020-07-17 11:28:18,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:28:18,513 INFO L479 AbstractCegarLoop]: Abstraction has 815 states and 1007 transitions. [2020-07-17 11:28:18,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 11:28:18,514 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1007 transitions. [2020-07-17 11:28:18,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-17 11:28:18,518 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:28:18,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:28:18,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 11:28:18,519 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:28:18,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:28:18,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1185420344, now seen corresponding path program 1 times [2020-07-17 11:28:18,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:28:18,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007147235] [2020-07-17 11:28:18,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:28:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,815 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:28:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:18,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:28:18,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007147235] [2020-07-17 11:28:18,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:28:18,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 11:28:18,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948716041] [2020-07-17 11:28:18,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 11:28:18,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:28:18,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 11:28:18,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-17 11:28:18,955 INFO L87 Difference]: Start difference. First operand 815 states and 1007 transitions. Second operand 9 states. [2020-07-17 11:28:19,967 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:28:20,228 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 11:28:20,479 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:20,716 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:21,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:28:21,989 INFO L93 Difference]: Finished difference Result 1863 states and 2473 transitions. [2020-07-17 11:28:21,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 11:28:21,990 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-07-17 11:28:21,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:28:22,002 INFO L225 Difference]: With dead ends: 1863 [2020-07-17 11:28:22,002 INFO L226 Difference]: Without dead ends: 1072 [2020-07-17 11:28:22,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-07-17 11:28:22,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-07-17 11:28:22,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 841. [2020-07-17 11:28:22,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2020-07-17 11:28:22,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1035 transitions. [2020-07-17 11:28:22,182 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1035 transitions. Word has length 88 [2020-07-17 11:28:22,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:28:22,184 INFO L479 AbstractCegarLoop]: Abstraction has 841 states and 1035 transitions. [2020-07-17 11:28:22,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 11:28:22,184 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1035 transitions. [2020-07-17 11:28:22,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-17 11:28:22,189 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:28:22,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:28:22,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 11:28:22,192 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:28:22,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:28:22,193 INFO L82 PathProgramCache]: Analyzing trace with hash -910660730, now seen corresponding path program 1 times [2020-07-17 11:28:22,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:28:22,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244772354] [2020-07-17 11:28:22,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:28:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,448 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:28:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:22,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:28:22,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244772354] [2020-07-17 11:28:22,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:28:22,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-17 11:28:22,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188516182] [2020-07-17 11:28:22,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 11:28:22,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:28:22,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 11:28:22,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-17 11:28:22,600 INFO L87 Difference]: Start difference. First operand 841 states and 1035 transitions. Second operand 11 states. [2020-07-17 11:28:23,481 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:28:23,697 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:23,922 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:24,642 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:24,910 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:25,178 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:28:26,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:28:26,654 INFO L93 Difference]: Finished difference Result 1917 states and 2592 transitions. [2020-07-17 11:28:26,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 11:28:26,655 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2020-07-17 11:28:26,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:28:26,664 INFO L225 Difference]: With dead ends: 1917 [2020-07-17 11:28:26,665 INFO L226 Difference]: Without dead ends: 1100 [2020-07-17 11:28:26,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-07-17 11:28:26,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2020-07-17 11:28:26,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 857. [2020-07-17 11:28:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2020-07-17 11:28:26,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1051 transitions. [2020-07-17 11:28:26,847 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1051 transitions. Word has length 88 [2020-07-17 11:28:26,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:28:26,848 INFO L479 AbstractCegarLoop]: Abstraction has 857 states and 1051 transitions. [2020-07-17 11:28:26,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 11:28:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1051 transitions. [2020-07-17 11:28:26,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-17 11:28:26,850 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:28:26,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:28:26,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 11:28:26,851 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:28:26,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:28:26,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1039639525, now seen corresponding path program 1 times [2020-07-17 11:28:26,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:28:26,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939069678] [2020-07-17 11:28:26,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:28:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,202 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:28:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:28:27,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:28:27,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939069678] [2020-07-17 11:28:27,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:28:27,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 11:28:27,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030585755] [2020-07-17 11:28:27,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 11:28:27,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:28:27,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 11:28:27,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 11:28:27,376 INFO L87 Difference]: Start difference. First operand 857 states and 1051 transitions. Second operand 7 states. [2020-07-17 11:28:27,873 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:28:28,348 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:28:31,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:28:31,223 INFO L93 Difference]: Finished difference Result 2846 states and 3865 transitions. [2020-07-17 11:28:31,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 11:28:31,224 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-07-17 11:28:31,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:28:31,244 INFO L225 Difference]: With dead ends: 2846 [2020-07-17 11:28:31,244 INFO L226 Difference]: Without dead ends: 2013 [2020-07-17 11:28:31,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-07-17 11:28:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2020-07-17 11:28:31,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1711. [2020-07-17 11:28:31,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1711 states. [2020-07-17 11:28:31,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2117 transitions. [2020-07-17 11:28:31,631 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2117 transitions. Word has length 88 [2020-07-17 11:28:31,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:28:31,631 INFO L479 AbstractCegarLoop]: Abstraction has 1711 states and 2117 transitions. [2020-07-17 11:28:31,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 11:28:31,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2117 transitions. [2020-07-17 11:28:31,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-17 11:28:31,634 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:28:31,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:28:31,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 11:28:31,635 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:28:31,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:28:31,635 INFO L82 PathProgramCache]: Analyzing trace with hash 745790239, now seen corresponding path program 1 times [2020-07-17 11:28:31,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:28:31,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177592897] [2020-07-17 11:28:31,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:28:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:28:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:28:31,856 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:28:31,856 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:28:31,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 11:28:32,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:28:32 BoogieIcfgContainer [2020-07-17 11:28:32,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:28:32,027 INFO L168 Benchmark]: Toolchain (without parser) took 33888.41 ms. Allocated memory was 139.5 MB in the beginning and 654.3 MB in the end (delta: 514.9 MB). Free memory was 103.3 MB in the beginning and 451.2 MB in the end (delta: -348.0 MB). Peak memory consumption was 166.9 MB. Max. memory is 7.1 GB. [2020-07-17 11:28:32,028 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 139.5 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 11:28:32,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.15 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 102.8 MB in the beginning and 174.8 MB in the end (delta: -72.0 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2020-07-17 11:28:32,029 INFO L168 Benchmark]: Boogie Preprocessor took 89.15 ms. Allocated memory is still 205.5 MB. Free memory was 174.8 MB in the beginning and 170.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-17 11:28:32,030 INFO L168 Benchmark]: RCFGBuilder took 1129.96 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 170.8 MB in the beginning and 198.6 MB in the end (delta: -27.8 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. [2020-07-17 11:28:32,031 INFO L168 Benchmark]: TraceAbstraction took 31991.72 ms. Allocated memory was 238.6 MB in the beginning and 654.3 MB in the end (delta: 415.8 MB). Free memory was 198.6 MB in the beginning and 451.2 MB in the end (delta: -252.6 MB). Peak memory consumption was 163.1 MB. Max. memory is 7.1 GB. [2020-07-17 11:28:32,034 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 139.5 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.15 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 102.8 MB in the beginning and 174.8 MB in the end (delta: -72.0 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.15 ms. Allocated memory is still 205.5 MB. Free memory was 174.8 MB in the beginning and 170.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1129.96 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 170.8 MB in the beginning and 198.6 MB in the end (delta: -27.8 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31991.72 ms. Allocated memory was 238.6 MB in the beginning and 654.3 MB in the end (delta: 415.8 MB). Free memory was 198.6 MB in the beginning and 451.2 MB in the end (delta: -252.6 MB). Peak memory consumption was 163.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L159] int pumpRunning = 0; [L160] int systemActive = 1; [L399] int waterLevel = 1; [L400] int methaneLevelCritical = 0; [L511] int cleanupTimeShifts = 4; [L802] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=169, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L584] int retValue_acc ; [L585] 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] [L589] 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] [L590] 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] [L591] 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] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] 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] [L591] 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] [L591] tmp = valid_product() [L593] 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] [L595] 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] [L596] 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] [L578] 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] [L84] int splverifierCounter ; [L85] int tmp ; [L86] int tmp___0 ; [L87] int tmp___1 ; [L88] int tmp___2 ; [L91] 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] [L93] 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] [L95] 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] [L101] tmp = __VERIFIER_nondet_int() [L103] 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] [L105] 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] [L417] COND TRUE waterLevel < 2 [L418] 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] [L105] 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] [L111] tmp___0 = __VERIFIER_nondet_int() [L113] COND TRUE \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=1, waterLevel=2] [L115] CALL changeMethaneLevel() 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] [L429] COND FALSE !(\read(methaneLevelCritical)) [L432] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L115] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L121] tmp___2 = __VERIFIER_nondet_int() [L123] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L138] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L167] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L174] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L176] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L248] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L251] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L266] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L222] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L225] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L240] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L196] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L199] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L201] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L345] int retValue_acc ; [L346] int tmp ; [L347] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L351] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L479] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L482] COND FALSE !(waterLevel < 2) [L486] retValue_acc = 0 [L487] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L351] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L351] tmp = isHighWaterSensorDry() [L353] COND FALSE !(\read(tmp)) [L356] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L358] retValue_acc = tmp___0 [L359] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L201] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L201] tmp = isHighWaterLevel() [L203] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L205] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L276] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L205] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L240] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L266] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L176] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L182] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L608] int tmp ; [L609] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L613] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L438] int retValue_acc ; [L441] retValue_acc = methaneLevelCritical [L442] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L613] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L613] tmp = isMethaneLevelCritical() [L615] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L617] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L617] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L617] tmp___0 = isPumpRunning() [L619] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L621] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L506] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 251 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.7s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 26.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1101 SDtfs, 1942 SDslu, 1143 SDs, 0 SdLazy, 5852 SolverSat, 1208 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 187 SyntacticMatches, 4 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1711occurred 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: 1.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1219 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 618 NumberOfCodeBlocks, 618 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 518 ConstructedInterpolants, 0 QuantifiedInterpolants, 158044 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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...