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_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:48:44,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:48:44,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:48:44,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:48:44,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:48:44,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:48:44,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:48:44,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:48:44,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:48:44,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:48:44,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:48:44,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:48:44,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:48:44,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:48:44,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:48:44,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:48:44,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:48:44,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:48:44,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:48:44,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:48:44,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:48:44,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:48:44,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:48:44,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:48:44,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:48:44,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:48:44,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:48:44,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:48:44,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:48:44,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:48:44,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:48:44,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:48:44,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:48:44,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:48:44,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:48:44,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:48:44,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:48:44,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:48:44,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:48:44,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:48:44,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:48:44,826 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 [2019-09-10 02:48:44,852 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:48:44,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:48:44,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:48:44,854 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:48:44,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:48:44,855 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:48:44,855 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:48:44,855 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:48:44,855 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:48:44,855 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:48:44,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:48:44,858 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:48:44,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:48:44,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:48:44,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:48:44,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:48:44,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:48:44,860 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:48:44,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:48:44,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:48:44,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:48:44,861 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:48:44,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:48:44,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:44,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:48:44,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:48:44,862 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:48:44,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:48:44,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:48:44,863 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:48:44,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:48:44,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:48:44,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:48:44,946 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:48:44,947 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:48:44,948 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c [2019-09-10 02:48:45,021 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25dcdc359/8c82bad85dd841daa90dad07933010e0/FLAG1737f5e69 [2019-09-10 02:48:45,539 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:48:45,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c [2019-09-10 02:48:45,558 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25dcdc359/8c82bad85dd841daa90dad07933010e0/FLAG1737f5e69 [2019-09-10 02:48:45,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25dcdc359/8c82bad85dd841daa90dad07933010e0 [2019-09-10 02:48:45,828 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:48:45,830 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:48:45,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:45,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:48:45,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:48:45,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:45" (1/1) ... [2019-09-10 02:48:45,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc6461a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:45, skipping insertion in model container [2019-09-10 02:48:45,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:45" (1/1) ... [2019-09-10 02:48:45,847 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:48:45,909 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:48:46,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:46,390 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:48:46,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:46,512 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:48:46,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:46 WrapperNode [2019-09-10 02:48:46,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:46,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:48:46,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:48:46,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:48:46,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:46" (1/1) ... [2019-09-10 02:48:46,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:46" (1/1) ... [2019-09-10 02:48:46,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:46" (1/1) ... [2019-09-10 02:48:46,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:46" (1/1) ... [2019-09-10 02:48:46,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:46" (1/1) ... [2019-09-10 02:48:46,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:46" (1/1) ... [2019-09-10 02:48:46,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:46" (1/1) ... [2019-09-10 02:48:46,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:48:46,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:48:46,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:48:46,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:48:46,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:46" (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 [2019-09-10 02:48:46,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:48:46,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:48:46,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:46,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:46,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:46,669 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:48:46,669 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:48:46,669 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:48:46,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:48:46,669 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:48:46,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:48:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:48:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:48:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:48:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:48:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:48:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:48:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:48:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:48:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:48:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:48:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:48:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:48:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:48:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:48:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:48:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:48:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:48:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:48:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:48:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:48:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:48:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:48:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:48:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:48:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:48:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:48:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:48:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:48:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:48:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:48:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:48:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:48:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:48:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:48:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:48:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:48:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:48:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:48:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:48:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:48:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:48:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:48:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:48:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:48:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:48:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:48:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:48:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:48:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:48:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:48:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:48:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:48:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:48:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:48:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:48:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:48:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:48:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:48:47,797 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:48:47,798 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:48:47,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:47 BoogieIcfgContainer [2019-09-10 02:48:47,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:48:47,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:48:47,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:48:47,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:48:47,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:48:45" (1/3) ... [2019-09-10 02:48:47,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733f773e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:47, skipping insertion in model container [2019-09-10 02:48:47,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:46" (2/3) ... [2019-09-10 02:48:47,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733f773e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:47, skipping insertion in model container [2019-09-10 02:48:47,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:47" (3/3) ... [2019-09-10 02:48:47,812 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2019-09-10 02:48:47,823 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:48:47,833 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:48:47,851 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:48:47,887 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:48:47,887 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:48:47,887 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:48:47,887 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:48:47,888 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:48:47,888 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:48:47,889 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:48:47,890 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:48:47,919 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states. [2019-09-10 02:48:47,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:48:47,939 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:47,941 INFO L399 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] [2019-09-10 02:48:47,945 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:47,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:47,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1292486909, now seen corresponding path program 1 times [2019-09-10 02:48:47,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:48,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:48,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:48,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:48,006 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:48,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:48,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:48,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:48:48,307 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:48,313 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:48,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:48,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:48,331 INFO L87 Difference]: Start difference. First operand 181 states. Second operand 2 states. [2019-09-10 02:48:48,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:48,363 INFO L93 Difference]: Finished difference Result 149 states and 175 transitions. [2019-09-10 02:48:48,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:48,364 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-10 02:48:48,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:48,379 INFO L225 Difference]: With dead ends: 149 [2019-09-10 02:48:48,379 INFO L226 Difference]: Without dead ends: 138 [2019-09-10 02:48:48,381 INFO L628 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 [2019-09-10 02:48:48,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-09-10 02:48:48,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-09-10 02:48:48,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-09-10 02:48:48,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 163 transitions. [2019-09-10 02:48:48,441 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 163 transitions. Word has length 51 [2019-09-10 02:48:48,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:48,442 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 163 transitions. [2019-09-10 02:48:48,442 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:48,442 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 163 transitions. [2019-09-10 02:48:48,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:48:48,446 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:48,446 INFO L399 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] [2019-09-10 02:48:48,447 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:48,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:48,447 INFO L82 PathProgramCache]: Analyzing trace with hash -11798802, now seen corresponding path program 1 times [2019-09-10 02:48:48,447 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:48,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:48,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:48,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:48,449 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:48,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:48,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:48,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:48:48,622 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:48,624 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:48:48,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:48:48,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:48,625 INFO L87 Difference]: Start difference. First operand 138 states and 163 transitions. Second operand 3 states. [2019-09-10 02:48:48,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:48,641 INFO L93 Difference]: Finished difference Result 129 states and 151 transitions. [2019-09-10 02:48:48,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:48:48,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-10 02:48:48,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:48,645 INFO L225 Difference]: With dead ends: 129 [2019-09-10 02:48:48,645 INFO L226 Difference]: Without dead ends: 129 [2019-09-10 02:48:48,646 INFO L628 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 [2019-09-10 02:48:48,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-09-10 02:48:48,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-09-10 02:48:48,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-09-10 02:48:48,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 151 transitions. [2019-09-10 02:48:48,661 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 151 transitions. Word has length 52 [2019-09-10 02:48:48,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:48,662 INFO L475 AbstractCegarLoop]: Abstraction has 129 states and 151 transitions. [2019-09-10 02:48:48,662 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:48:48,662 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 151 transitions. [2019-09-10 02:48:48,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:48:48,664 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:48,665 INFO L399 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] [2019-09-10 02:48:48,665 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:48,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:48,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1490469892, now seen corresponding path program 1 times [2019-09-10 02:48:48,665 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:48,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:48,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:48,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:48,667 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:48,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:48,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:48,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:48,843 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:48,844 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:48,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:48,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:48,845 INFO L87 Difference]: Start difference. First operand 129 states and 151 transitions. Second operand 7 states. [2019-09-10 02:48:49,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:49,422 INFO L93 Difference]: Finished difference Result 281 states and 340 transitions. [2019-09-10 02:48:49,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:48:49,423 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-10 02:48:49,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:49,427 INFO L225 Difference]: With dead ends: 281 [2019-09-10 02:48:49,427 INFO L226 Difference]: Without dead ends: 281 [2019-09-10 02:48:49,428 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:48:49,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-09-10 02:48:49,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 269. [2019-09-10 02:48:49,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-09-10 02:48:49,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 328 transitions. [2019-09-10 02:48:49,499 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 328 transitions. Word has length 57 [2019-09-10 02:48:49,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:49,500 INFO L475 AbstractCegarLoop]: Abstraction has 269 states and 328 transitions. [2019-09-10 02:48:49,500 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:49,501 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 328 transitions. [2019-09-10 02:48:49,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-10 02:48:49,511 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:49,512 INFO L399 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] [2019-09-10 02:48:49,512 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:49,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:49,513 INFO L82 PathProgramCache]: Analyzing trace with hash -512554003, now seen corresponding path program 1 times [2019-09-10 02:48:49,513 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:49,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:49,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:49,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:49,517 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:49,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:49,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:49,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:49,678 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:49,679 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:49,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:49,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:49,679 INFO L87 Difference]: Start difference. First operand 269 states and 328 transitions. Second operand 6 states. [2019-09-10 02:48:49,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:49,936 INFO L93 Difference]: Finished difference Result 492 states and 602 transitions. [2019-09-10 02:48:49,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:49,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-10 02:48:49,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:49,944 INFO L225 Difference]: With dead ends: 492 [2019-09-10 02:48:49,944 INFO L226 Difference]: Without dead ends: 492 [2019-09-10 02:48:49,945 INFO L628 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 [2019-09-10 02:48:49,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2019-09-10 02:48:49,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 486. [2019-09-10 02:48:49,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 486 states. [2019-09-10 02:48:50,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 596 transitions. [2019-09-10 02:48:50,002 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 596 transitions. Word has length 62 [2019-09-10 02:48:50,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:50,002 INFO L475 AbstractCegarLoop]: Abstraction has 486 states and 596 transitions. [2019-09-10 02:48:50,003 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:50,003 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 596 transitions. [2019-09-10 02:48:50,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-10 02:48:50,006 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:50,006 INFO L399 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] [2019-09-10 02:48:50,007 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:50,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:50,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1361940215, now seen corresponding path program 1 times [2019-09-10 02:48:50,007 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:50,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:50,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:50,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:50,009 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:50,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:50,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:50,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:50,106 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:50,106 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:50,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:50,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:50,107 INFO L87 Difference]: Start difference. First operand 486 states and 596 transitions. Second operand 7 states. [2019-09-10 02:48:50,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:50,875 INFO L93 Difference]: Finished difference Result 813 states and 1038 transitions. [2019-09-10 02:48:50,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:48:50,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-09-10 02:48:50,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:50,882 INFO L225 Difference]: With dead ends: 813 [2019-09-10 02:48:50,882 INFO L226 Difference]: Without dead ends: 813 [2019-09-10 02:48:50,883 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:48:50,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2019-09-10 02:48:50,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 715. [2019-09-10 02:48:50,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 715 states. [2019-09-10 02:48:50,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 871 transitions. [2019-09-10 02:48:50,930 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 871 transitions. Word has length 66 [2019-09-10 02:48:50,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:50,931 INFO L475 AbstractCegarLoop]: Abstraction has 715 states and 871 transitions. [2019-09-10 02:48:50,931 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:50,931 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 871 transitions. [2019-09-10 02:48:50,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:48:50,937 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:50,937 INFO L399 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] [2019-09-10 02:48:50,937 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:50,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:50,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1572074791, now seen corresponding path program 1 times [2019-09-10 02:48:50,938 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:50,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:50,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:50,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:50,939 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:51,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:51,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:48:51,052 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:51,053 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:48:51,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:48:51,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:48:51,053 INFO L87 Difference]: Start difference. First operand 715 states and 871 transitions. Second operand 4 states. [2019-09-10 02:48:51,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:51,297 INFO L93 Difference]: Finished difference Result 1937 states and 2485 transitions. [2019-09-10 02:48:51,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:48:51,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2019-09-10 02:48:51,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:51,309 INFO L225 Difference]: With dead ends: 1937 [2019-09-10 02:48:51,309 INFO L226 Difference]: Without dead ends: 1937 [2019-09-10 02:48:51,309 INFO L628 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 [2019-09-10 02:48:51,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2019-09-10 02:48:51,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1891. [2019-09-10 02:48:51,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1891 states. [2019-09-10 02:48:51,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2393 transitions. [2019-09-10 02:48:51,398 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2393 transitions. Word has length 89 [2019-09-10 02:48:51,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:51,398 INFO L475 AbstractCegarLoop]: Abstraction has 1891 states and 2393 transitions. [2019-09-10 02:48:51,398 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:48:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2393 transitions. [2019-09-10 02:48:51,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:48:51,403 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:51,404 INFO L399 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] [2019-09-10 02:48:51,404 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:51,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:51,404 INFO L82 PathProgramCache]: Analyzing trace with hash -153406106, now seen corresponding path program 1 times [2019-09-10 02:48:51,404 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:51,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:51,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:51,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:51,408 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:51,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:51,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:51,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:51,525 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:51,525 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:51,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:51,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:51,526 INFO L87 Difference]: Start difference. First operand 1891 states and 2393 transitions. Second operand 6 states. [2019-09-10 02:48:51,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:51,569 INFO L93 Difference]: Finished difference Result 1951 states and 2457 transitions. [2019-09-10 02:48:51,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:48:51,570 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-09-10 02:48:51,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:51,582 INFO L225 Difference]: With dead ends: 1951 [2019-09-10 02:48:51,582 INFO L226 Difference]: Without dead ends: 1951 [2019-09-10 02:48:51,583 INFO L628 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 [2019-09-10 02:48:51,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2019-09-10 02:48:51,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1951. [2019-09-10 02:48:51,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1951 states. [2019-09-10 02:48:51,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2457 transitions. [2019-09-10 02:48:51,683 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2457 transitions. Word has length 89 [2019-09-10 02:48:51,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:51,683 INFO L475 AbstractCegarLoop]: Abstraction has 1951 states and 2457 transitions. [2019-09-10 02:48:51,683 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:51,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2457 transitions. [2019-09-10 02:48:51,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:48:51,689 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:51,689 INFO L399 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] [2019-09-10 02:48:51,689 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:51,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:51,690 INFO L82 PathProgramCache]: Analyzing trace with hash 548193768, now seen corresponding path program 1 times [2019-09-10 02:48:51,690 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:51,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:51,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:51,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:51,691 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:51,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:51,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:51,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:48:51,812 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:51,814 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:48:51,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:48:51,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:48:51,821 INFO L87 Difference]: Start difference. First operand 1951 states and 2457 transitions. Second operand 8 states. [2019-09-10 02:48:51,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:51,879 INFO L93 Difference]: Finished difference Result 1699 states and 2099 transitions. [2019-09-10 02:48:51,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:51,879 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2019-09-10 02:48:51,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:51,893 INFO L225 Difference]: With dead ends: 1699 [2019-09-10 02:48:51,893 INFO L226 Difference]: Without dead ends: 1699 [2019-09-10 02:48:51,894 INFO L628 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 [2019-09-10 02:48:51,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2019-09-10 02:48:51,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2019-09-10 02:48:51,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1699 states. [2019-09-10 02:48:51,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2099 transitions. [2019-09-10 02:48:51,991 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2099 transitions. Word has length 89 [2019-09-10 02:48:51,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:51,991 INFO L475 AbstractCegarLoop]: Abstraction has 1699 states and 2099 transitions. [2019-09-10 02:48:51,991 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:48:51,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2099 transitions. [2019-09-10 02:48:51,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 02:48:51,997 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:51,997 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:51,997 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:51,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:51,998 INFO L82 PathProgramCache]: Analyzing trace with hash 81932175, now seen corresponding path program 1 times [2019-09-10 02:48:51,998 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:51,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:51,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:51,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:51,999 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:52,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:52,116 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:48:52,116 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:52,116 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:48:52,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:48:52,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:52,117 INFO L87 Difference]: Start difference. First operand 1699 states and 2099 transitions. Second operand 3 states. [2019-09-10 02:48:52,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:52,180 INFO L93 Difference]: Finished difference Result 2683 states and 3419 transitions. [2019-09-10 02:48:52,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:48:52,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2019-09-10 02:48:52,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:52,203 INFO L225 Difference]: With dead ends: 2683 [2019-09-10 02:48:52,203 INFO L226 Difference]: Without dead ends: 2683 [2019-09-10 02:48:52,205 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:52,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2019-09-10 02:48:52,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2523. [2019-09-10 02:48:52,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2523 states. [2019-09-10 02:48:52,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3229 transitions. [2019-09-10 02:48:52,370 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3229 transitions. Word has length 93 [2019-09-10 02:48:52,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:52,373 INFO L475 AbstractCegarLoop]: Abstraction has 2523 states and 3229 transitions. [2019-09-10 02:48:52,373 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:48:52,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3229 transitions. [2019-09-10 02:48:52,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-09-10 02:48:52,390 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:52,391 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:52,391 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:52,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:52,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1241102473, now seen corresponding path program 1 times [2019-09-10 02:48:52,392 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:52,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:52,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:52,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:52,395 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:52,592 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-10 02:48:52,594 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:48:52,594 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:48:52,595 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2019-09-10 02:48:52,597 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [92], [108], [112], [113], [114], [117], [119], [125], [129], [132], [133], [134], [143], [147], [151], [154], [159], [162], [165], [167], [173], [179], [187], [189], [192], [194], [197], [200], [203], [211], [212], [213], [223], [224], [227], [229], [234], [236], [237], [238], [239], [242], [245], [249], [255], [284], [288], [291], [294], [296], [299], [306], [309], [312], [316], [317], [320], [321], [322], [346], [348], [349], [416], [417], [422], [424], [427], [435], [436], [437], [438], [439], [440], [441], [442], [443], [477], [478], [481], [482], [483], [484], [485], [486], [487], [488], [493], [494], [497], [498], [499], [500], [501], [503], [504], [505], [506], [507], [508], [509], [510], [515], [516], [517], [518], [521], [522], [525], [526], [527], [529], [530], [535], [536], [537] [2019-09-10 02:48:52,658 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:48:52,659 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:48:52,747 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:48:52,749 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 70 root evaluator evaluations with a maximum evaluation depth of 0. Performed 70 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-10 02:48:52,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:52,754 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:48:52,848 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:48:52,848 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:48:52,856 INFO L420 sIntCurrentIteration]: We unified 155 AI predicates to 155 [2019-09-10 02:48:52,856 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:48:52,857 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:48:52,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2019-09-10 02:48:52,858 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:52,858 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:52,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:52,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:52,859 INFO L87 Difference]: Start difference. First operand 2523 states and 3229 transitions. Second operand 2 states. [2019-09-10 02:48:52,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:52,860 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:48:52,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:52,860 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 156 [2019-09-10 02:48:52,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:52,860 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:48:52,860 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:48:52,862 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:52,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:48:52,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:48:52,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:48:52,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:48:52,862 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 156 [2019-09-10 02:48:52,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:52,863 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:48:52,863 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:52,863 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:48:52,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:48:52,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:48:52 BoogieIcfgContainer [2019-09-10 02:48:52,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:48:52,871 INFO L168 Benchmark]: Toolchain (without parser) took 7040.50 ms. Allocated memory was 141.0 MB in the beginning and 310.4 MB in the end (delta: 169.3 MB). Free memory was 87.8 MB in the beginning and 253.5 MB in the end (delta: -165.7 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:52,872 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 107.2 MB in the beginning and 107.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:48:52,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.59 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 87.6 MB in the beginning and 165.7 MB in the end (delta: -78.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:52,876 INFO L168 Benchmark]: Boogie Preprocessor took 94.06 ms. Allocated memory is still 200.3 MB. Free memory was 165.7 MB in the beginning and 161.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:52,882 INFO L168 Benchmark]: RCFGBuilder took 1187.99 ms. Allocated memory was 200.3 MB in the beginning and 227.5 MB in the end (delta: 27.3 MB). Free memory was 161.5 MB in the beginning and 194.2 MB in the end (delta: -32.6 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:52,883 INFO L168 Benchmark]: TraceAbstraction took 5067.47 ms. Allocated memory was 227.5 MB in the beginning and 310.4 MB in the end (delta: 82.8 MB). Free memory was 194.2 MB in the beginning and 253.5 MB in the end (delta: -59.3 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:52,895 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 107.2 MB in the beginning and 107.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 682.59 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 87.6 MB in the beginning and 165.7 MB in the end (delta: -78.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.06 ms. Allocated memory is still 200.3 MB. Free memory was 165.7 MB in the beginning and 161.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1187.99 ms. Allocated memory was 200.3 MB in the beginning and 227.5 MB in the end (delta: 27.3 MB). Free memory was 161.5 MB in the beginning and 194.2 MB in the end (delta: -32.6 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5067.47 ms. Allocated memory was 227.5 MB in the beginning and 310.4 MB in the end (delta: 82.8 MB). Free memory was 194.2 MB in the beginning and 253.5 MB in the end (delta: -59.3 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 829]: 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 41 procedures, 240 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1567 SDtfs, 880 SDslu, 3415 SDs, 0 SdLazy, 932 SolverSat, 132 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 235 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2523occurred 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, 0.8129032258064516 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 322 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 804 NumberOfCodeBlocks, 804 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 794 ConstructedInterpolants, 0 QuantifiedInterpolants, 109618 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 42/46 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...