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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:18,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:18,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:18,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:18,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:18,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:18,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:18,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:18,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:18,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:18,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:18,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:18,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:18,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:18,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:18,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:18,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:18,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:18,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:18,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:18,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:18,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:18,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:18,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:18,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:18,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:18,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:18,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:18,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:18,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:18,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:18,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:18,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:18,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:18,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:18,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:18,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:18,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:18,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:18,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:18,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:18,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:30:19,003 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:19,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:19,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:19,005 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:19,006 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:19,006 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:19,006 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:19,007 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:19,007 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:19,007 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:19,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:19,008 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:19,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:19,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:19,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:19,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:19,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:19,010 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:19,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:19,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:19,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:19,011 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:19,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:19,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:19,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:19,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:19,013 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:19,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:19,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:19,013 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:19,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:19,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:19,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:19,079 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:19,079 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:19,080 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2019-09-20 13:30:19,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76ece95c4/928a413dfac64debab4711eb1ec2bf38/FLAG25605d554 [2019-09-20 13:30:19,700 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:19,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2019-09-20 13:30:19,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76ece95c4/928a413dfac64debab4711eb1ec2bf38/FLAG25605d554 [2019-09-20 13:30:20,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76ece95c4/928a413dfac64debab4711eb1ec2bf38 [2019-09-20 13:30:20,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:20,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:20,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:20,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:20,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:20,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb00ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20, skipping insertion in model container [2019-09-20 13:30:20,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,055 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:20,120 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:20,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:20,638 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:20,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:20,749 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:20,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20 WrapperNode [2019-09-20 13:30:20,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:20,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:20,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:20,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:20,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (1/1) ... [2019-09-20 13:30:20,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:20,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:20,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:20,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:20,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (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 [2019-09-20 13:30:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:20,908 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:20,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:20,908 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:20,908 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:20,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:30:20,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:30:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:30:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:20,920 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:20,920 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:20,920 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:30:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:22,018 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:22,018 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:22,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:22 BoogieIcfgContainer [2019-09-20 13:30:22,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:22,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:22,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:22,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:22,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:20" (1/3) ... [2019-09-20 13:30:22,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141ac24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:22, skipping insertion in model container [2019-09-20 13:30:22,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:20" (2/3) ... [2019-09-20 13:30:22,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141ac24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:22, skipping insertion in model container [2019-09-20 13:30:22,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:22" (3/3) ... [2019-09-20 13:30:22,030 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product57.cil.c [2019-09-20 13:30:22,040 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:22,052 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:22,069 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:22,101 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:22,101 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:22,101 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:22,102 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:22,102 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:22,103 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:22,103 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:22,103 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:22,126 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states. [2019-09-20 13:30:22,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:22,148 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:22,149 INFO L407 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] [2019-09-20 13:30:22,153 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:22,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:22,159 INFO L82 PathProgramCache]: Analyzing trace with hash -2111020078, now seen corresponding path program 1 times [2019-09-20 13:30:22,162 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:22,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:22,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,221 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:22,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:22,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:22,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:22,508 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:22,514 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:22,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:22,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:22,534 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 2 states. [2019-09-20 13:30:22,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:22,568 INFO L93 Difference]: Finished difference Result 156 states and 182 transitions. [2019-09-20 13:30:22,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:22,570 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:22,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:22,585 INFO L225 Difference]: With dead ends: 156 [2019-09-20 13:30:22,586 INFO L226 Difference]: Without dead ends: 145 [2019-09-20 13:30:22,588 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:22,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-09-20 13:30:22,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2019-09-20 13:30:22,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-09-20 13:30:22,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 170 transitions. [2019-09-20 13:30:22,685 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 170 transitions. Word has length 51 [2019-09-20 13:30:22,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:22,686 INFO L475 AbstractCegarLoop]: Abstraction has 145 states and 170 transitions. [2019-09-20 13:30:22,686 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:22,686 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 170 transitions. [2019-09-20 13:30:22,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:22,698 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:22,698 INFO L407 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] [2019-09-20 13:30:22,699 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:22,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:22,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1832052429, now seen corresponding path program 1 times [2019-09-20 13:30:22,699 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:22,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:22,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,703 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:22,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:22,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:22,841 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:22,844 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:22,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:22,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:22,845 INFO L87 Difference]: Start difference. First operand 145 states and 170 transitions. Second operand 3 states. [2019-09-20 13:30:22,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:22,871 INFO L93 Difference]: Finished difference Result 136 states and 158 transitions. [2019-09-20 13:30:22,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:22,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:22,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:22,878 INFO L225 Difference]: With dead ends: 136 [2019-09-20 13:30:22,879 INFO L226 Difference]: Without dead ends: 136 [2019-09-20 13:30:22,880 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:22,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-09-20 13:30:22,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-09-20 13:30:22,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-09-20 13:30:22,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 158 transitions. [2019-09-20 13:30:22,893 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 158 transitions. Word has length 52 [2019-09-20 13:30:22,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:22,894 INFO L475 AbstractCegarLoop]: Abstraction has 136 states and 158 transitions. [2019-09-20 13:30:22,894 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:22,894 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 158 transitions. [2019-09-20 13:30:22,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-20 13:30:22,896 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:22,896 INFO L407 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] [2019-09-20 13:30:22,896 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:22,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:22,897 INFO L82 PathProgramCache]: Analyzing trace with hash -761941703, now seen corresponding path program 1 times [2019-09-20 13:30:22,897 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:22,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:22,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,900 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:23,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:23,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:23,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:23,087 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:23,088 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:23,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:23,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:23,089 INFO L87 Difference]: Start difference. First operand 136 states and 158 transitions. Second operand 7 states. [2019-09-20 13:30:23,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:23,422 INFO L93 Difference]: Finished difference Result 136 states and 157 transitions. [2019-09-20 13:30:23,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:23,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-20 13:30:23,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:23,425 INFO L225 Difference]: With dead ends: 136 [2019-09-20 13:30:23,425 INFO L226 Difference]: Without dead ends: 136 [2019-09-20 13:30:23,425 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:23,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-09-20 13:30:23,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-09-20 13:30:23,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-09-20 13:30:23,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 157 transitions. [2019-09-20 13:30:23,438 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 157 transitions. Word has length 56 [2019-09-20 13:30:23,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:23,438 INFO L475 AbstractCegarLoop]: Abstraction has 136 states and 157 transitions. [2019-09-20 13:30:23,438 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:23,439 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 157 transitions. [2019-09-20 13:30:23,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-20 13:30:23,443 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:23,443 INFO L407 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] [2019-09-20 13:30:23,444 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:23,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:23,447 INFO L82 PathProgramCache]: Analyzing trace with hash -505794736, now seen corresponding path program 1 times [2019-09-20 13:30:23,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:23,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:23,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,451 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:23,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:23,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:23,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:30:23,588 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:23,588 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:30:23,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:30:23,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:30:23,589 INFO L87 Difference]: Start difference. First operand 136 states and 157 transitions. Second operand 5 states. [2019-09-20 13:30:24,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:24,140 INFO L93 Difference]: Finished difference Result 234 states and 272 transitions. [2019-09-20 13:30:24,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:24,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-09-20 13:30:24,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:24,144 INFO L225 Difference]: With dead ends: 234 [2019-09-20 13:30:24,146 INFO L226 Difference]: Without dead ends: 234 [2019-09-20 13:30:24,147 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:24,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2019-09-20 13:30:24,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 216. [2019-09-20 13:30:24,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2019-09-20 13:30:24,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 248 transitions. [2019-09-20 13:30:24,184 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 248 transitions. Word has length 69 [2019-09-20 13:30:24,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:24,186 INFO L475 AbstractCegarLoop]: Abstraction has 216 states and 248 transitions. [2019-09-20 13:30:24,186 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:30:24,186 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 248 transitions. [2019-09-20 13:30:24,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-20 13:30:24,194 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:24,194 INFO L407 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] [2019-09-20 13:30:24,195 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:24,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:24,195 INFO L82 PathProgramCache]: Analyzing trace with hash -210026842, now seen corresponding path program 1 times [2019-09-20 13:30:24,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:24,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:24,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,199 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:24,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:24,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:24,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:24,341 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:24,343 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:24,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:24,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:24,344 INFO L87 Difference]: Start difference. First operand 216 states and 248 transitions. Second operand 6 states. [2019-09-20 13:30:24,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:24,568 INFO L93 Difference]: Finished difference Result 386 states and 443 transitions. [2019-09-20 13:30:24,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:24,569 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2019-09-20 13:30:24,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:24,575 INFO L225 Difference]: With dead ends: 386 [2019-09-20 13:30:24,575 INFO L226 Difference]: Without dead ends: 386 [2019-09-20 13:30:24,576 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:24,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2019-09-20 13:30:24,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 380. [2019-09-20 13:30:24,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2019-09-20 13:30:24,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 436 transitions. [2019-09-20 13:30:24,616 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 436 transitions. Word has length 83 [2019-09-20 13:30:24,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:24,617 INFO L475 AbstractCegarLoop]: Abstraction has 380 states and 436 transitions. [2019-09-20 13:30:24,618 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:24,618 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 436 transitions. [2019-09-20 13:30:24,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-20 13:30:24,620 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:24,620 INFO L407 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] [2019-09-20 13:30:24,621 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:24,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:24,621 INFO L82 PathProgramCache]: Analyzing trace with hash -910798134, now seen corresponding path program 1 times [2019-09-20 13:30:24,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:24,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:24,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,626 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:24,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:24,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:24,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:24,766 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:24,767 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:24,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:24,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:24,768 INFO L87 Difference]: Start difference. First operand 380 states and 436 transitions. Second operand 7 states. [2019-09-20 13:30:25,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:25,396 INFO L93 Difference]: Finished difference Result 409 states and 481 transitions. [2019-09-20 13:30:25,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:30:25,397 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-09-20 13:30:25,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:25,399 INFO L225 Difference]: With dead ends: 409 [2019-09-20 13:30:25,399 INFO L226 Difference]: Without dead ends: 409 [2019-09-20 13:30:25,400 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:30:25,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2019-09-20 13:30:25,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 379. [2019-09-20 13:30:25,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-09-20 13:30:25,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 433 transitions. [2019-09-20 13:30:25,418 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 433 transitions. Word has length 87 [2019-09-20 13:30:25,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:25,419 INFO L475 AbstractCegarLoop]: Abstraction has 379 states and 433 transitions. [2019-09-20 13:30:25,419 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:25,419 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 433 transitions. [2019-09-20 13:30:25,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-20 13:30:25,421 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:25,421 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:25,422 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:25,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:25,422 INFO L82 PathProgramCache]: Analyzing trace with hash -777270984, now seen corresponding path program 1 times [2019-09-20 13:30:25,422 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:25,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:25,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,425 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:25,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:30:25,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:25,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:25,500 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:25,501 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:25,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:25,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:25,502 INFO L87 Difference]: Start difference. First operand 379 states and 433 transitions. Second operand 6 states. [2019-09-20 13:30:25,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:25,533 INFO L93 Difference]: Finished difference Result 393 states and 447 transitions. [2019-09-20 13:30:25,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:25,534 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2019-09-20 13:30:25,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:25,536 INFO L225 Difference]: With dead ends: 393 [2019-09-20 13:30:25,537 INFO L226 Difference]: Without dead ends: 393 [2019-09-20 13:30:25,537 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:25,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2019-09-20 13:30:25,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 389. [2019-09-20 13:30:25,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-09-20 13:30:25,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 443 transitions. [2019-09-20 13:30:25,553 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 443 transitions. Word has length 103 [2019-09-20 13:30:25,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:25,553 INFO L475 AbstractCegarLoop]: Abstraction has 389 states and 443 transitions. [2019-09-20 13:30:25,554 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:25,554 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 443 transitions. [2019-09-20 13:30:25,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-20 13:30:25,555 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:25,556 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:25,556 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:25,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:25,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1151001718, now seen corresponding path program 1 times [2019-09-20 13:30:25,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:25,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:25,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,559 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:25,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:30:25,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:25,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:30:25,644 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:25,645 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:30:25,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:30:25,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:25,646 INFO L87 Difference]: Start difference. First operand 389 states and 443 transitions. Second operand 8 states. [2019-09-20 13:30:25,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:25,683 INFO L93 Difference]: Finished difference Result 403 states and 457 transitions. [2019-09-20 13:30:25,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:25,684 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-09-20 13:30:25,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:25,705 INFO L225 Difference]: With dead ends: 403 [2019-09-20 13:30:25,705 INFO L226 Difference]: Without dead ends: 403 [2019-09-20 13:30:25,706 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:25,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-09-20 13:30:25,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 397. [2019-09-20 13:30:25,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-09-20 13:30:25,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 451 transitions. [2019-09-20 13:30:25,720 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 451 transitions. Word has length 103 [2019-09-20 13:30:25,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:25,721 INFO L475 AbstractCegarLoop]: Abstraction has 397 states and 451 transitions. [2019-09-20 13:30:25,721 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:30:25,721 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 451 transitions. [2019-09-20 13:30:25,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-20 13:30:25,723 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:25,723 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:25,723 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:25,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:25,724 INFO L82 PathProgramCache]: Analyzing trace with hash 910461589, now seen corresponding path program 1 times [2019-09-20 13:30:25,724 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:25,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:25,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,726 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:25,809 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:30:25,809 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:25,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:30:25,810 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:25,810 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:30:25,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:30:25,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:25,811 INFO L87 Difference]: Start difference. First operand 397 states and 451 transitions. Second operand 4 states. [2019-09-20 13:30:26,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:26,030 INFO L93 Difference]: Finished difference Result 793 states and 943 transitions. [2019-09-20 13:30:26,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:30:26,030 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2019-09-20 13:30:26,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:26,035 INFO L225 Difference]: With dead ends: 793 [2019-09-20 13:30:26,035 INFO L226 Difference]: Without dead ends: 793 [2019-09-20 13:30:26,036 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:26,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2019-09-20 13:30:26,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 778. [2019-09-20 13:30:26,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2019-09-20 13:30:26,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 911 transitions. [2019-09-20 13:30:26,065 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 911 transitions. Word has length 103 [2019-09-20 13:30:26,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:26,066 INFO L475 AbstractCegarLoop]: Abstraction has 778 states and 911 transitions. [2019-09-20 13:30:26,066 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:30:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 911 transitions. [2019-09-20 13:30:26,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-20 13:30:26,069 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:26,069 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:26,069 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:26,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:26,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1450576315, now seen corresponding path program 1 times [2019-09-20 13:30:26,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:26,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:26,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:26,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:26,073 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:26,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:30:26,209 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:30:26,210 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:30:26,211 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2019-09-20 13:30:26,213 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [161], [164], [169], [172], [187], [188], [191], [193], [196], [198], [201], [204], [225], [226], [227], [229], [234], [237], [240], [242], [247], [249], [250], [251], [252], [258], [262], [302], [305], [307], [310], [320], [323], [327], [328], [331], [332], [333], [357], [359], [360], [427], [428], [433], [435], [438], [446], [447], [448], [449], [450], [451], [452], [453], [454], [494], [495], [496], [497], [498], [499], [500], [504], [505], [506], [507], [508], [510], [511], [512], [513], [514], [515], [518], [519], [520], [526], [527], [528], [529], [536], [537], [538], [540], [541], [546], [547], [548] [2019-09-20 13:30:26,257 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:30:26,257 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:30:26,339 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:30:26,341 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-20 13:30:26,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:26,346 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:30:26,394 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:30:26,395 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:30:26,398 INFO L420 sIntCurrentIteration]: We unified 106 AI predicates to 106 [2019-09-20 13:30:26,398 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:30:26,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:30:26,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-20 13:30:26,400 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:26,400 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:26,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:26,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:26,401 INFO L87 Difference]: Start difference. First operand 778 states and 911 transitions. Second operand 2 states. [2019-09-20 13:30:26,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:26,401 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:30:26,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:26,402 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 107 [2019-09-20 13:30:26,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:26,402 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:30:26,402 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:26,403 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:26,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:26,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:26,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:26,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 107 [2019-09-20 13:30:26,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:26,404 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:26,404 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:26,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:26,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:26,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:26 BoogieIcfgContainer [2019-09-20 13:30:26,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:26,413 INFO L168 Benchmark]: Toolchain (without parser) took 6374.63 ms. Allocated memory was 131.6 MB in the beginning and 328.7 MB in the end (delta: 197.1 MB). Free memory was 86.3 MB in the beginning and 167.6 MB in the end (delta: -81.3 MB). Peak memory consumption was 115.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:26,414 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory is still 105.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:30:26,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.92 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 86.3 MB in the beginning and 162.9 MB in the end (delta: -76.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:26,415 INFO L168 Benchmark]: Boogie Preprocessor took 88.35 ms. Allocated memory is still 198.7 MB. Free memory was 162.9 MB in the beginning and 158.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:26,416 INFO L168 Benchmark]: RCFGBuilder took 1180.60 ms. Allocated memory was 198.7 MB in the beginning and 220.7 MB in the end (delta: 22.0 MB). Free memory was 158.2 MB in the beginning and 187.5 MB in the end (delta: -29.3 MB). Peak memory consumption was 91.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:26,418 INFO L168 Benchmark]: TraceAbstraction took 4388.75 ms. Allocated memory was 220.7 MB in the beginning and 328.7 MB in the end (delta: 108.0 MB). Free memory was 187.5 MB in the beginning and 167.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:26,422 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory is still 105.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 709.92 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 86.3 MB in the beginning and 162.9 MB in the end (delta: -76.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.35 ms. Allocated memory is still 198.7 MB. Free memory was 162.9 MB in the beginning and 158.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1180.60 ms. Allocated memory was 198.7 MB in the beginning and 220.7 MB in the end (delta: 22.0 MB). Free memory was 158.2 MB in the beginning and 187.5 MB in the end (delta: -29.3 MB). Peak memory consumption was 91.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4388.75 ms. Allocated memory was 220.7 MB in the beginning and 328.7 MB in the end (delta: 108.0 MB). Free memory was 187.5 MB in the beginning and 167.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 983]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 247 locations, 1 error locations. SAFE Result, 4.3s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1559 SDtfs, 845 SDslu, 3216 SDs, 0 SdLazy, 1101 SolverSat, 241 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=778occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.0377358490566038 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 79 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 814 NumberOfCodeBlocks, 814 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 804 ConstructedInterpolants, 0 QuantifiedInterpolants, 111212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...