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_spec5_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:35,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:35,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:35,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:35,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:35,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:35,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:35,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:35,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:35,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:35,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:35,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:35,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:35,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:35,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:35,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:35,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:35,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:35,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:35,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:35,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:35,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:35,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:35,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:35,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:35,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:35,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:35,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:35,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:35,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:35,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:35,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:35,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:35,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:35,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:35,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:35,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:35,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:35,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:35,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:35,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:35,829 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 13:31:35,856 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:35,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:35,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:35,857 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:35,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:35,858 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:35,858 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:35,858 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:35,858 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:35,859 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:35,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:35,861 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:35,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:35,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:35,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:35,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:35,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:35,862 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:35,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:35,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:35,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:35,863 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:35,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:35,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:35,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:35,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:35,865 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:35,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:35,865 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:35,865 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:35,914 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:35,933 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:35,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:35,940 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:35,940 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:35,941 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2019-09-20 13:31:36,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/648b5590e/03dbd34b2fb94ded82172437b0174794/FLAGc4b339dc5 [2019-09-20 13:31:36,560 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:36,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2019-09-20 13:31:36,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/648b5590e/03dbd34b2fb94ded82172437b0174794/FLAGc4b339dc5 [2019-09-20 13:31:36,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/648b5590e/03dbd34b2fb94ded82172437b0174794 [2019-09-20 13:31:36,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:36,860 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:36,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:36,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:36,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:36,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:36" (1/1) ... [2019-09-20 13:31:36,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8d1e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:36, skipping insertion in model container [2019-09-20 13:31:36,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:36" (1/1) ... [2019-09-20 13:31:36,879 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:36,939 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:37,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:37,414 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:37,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:37,571 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:37,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37 WrapperNode [2019-09-20 13:31:37,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:37,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:37,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:37,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:37,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (1/1) ... [2019-09-20 13:31:37,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:37,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:37,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:37,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:37,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (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 13:31:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:37,733 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:37,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:31:37,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:31:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:31:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:37,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:37,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:37,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:37,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:37,739 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:37,739 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:37,740 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:37,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:37,740 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:37,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:31:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:31:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:31:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:37,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:37,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:37,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:38,859 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:38,859 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:38,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:38 BoogieIcfgContainer [2019-09-20 13:31:38,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:38,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:38,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:38,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:38,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:36" (1/3) ... [2019-09-20 13:31:38,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b10461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:38, skipping insertion in model container [2019-09-20 13:31:38,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:37" (2/3) ... [2019-09-20 13:31:38,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b10461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:38, skipping insertion in model container [2019-09-20 13:31:38,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:38" (3/3) ... [2019-09-20 13:31:38,869 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2019-09-20 13:31:38,879 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:38,888 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:38,906 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:38,937 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:38,937 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:38,938 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:38,938 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:38,938 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:38,938 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:38,938 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:38,938 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:38,959 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states. [2019-09-20 13:31:38,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:38,973 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:38,975 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] [2019-09-20 13:31:38,977 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:38,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:38,983 INFO L82 PathProgramCache]: Analyzing trace with hash 2053229239, now seen corresponding path program 1 times [2019-09-20 13:31:38,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:39,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:39,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:39,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:39,050 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:39,365 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 13:31:39,367 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:39,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:39,368 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:39,374 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:39,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:39,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:39,393 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 2 states. [2019-09-20 13:31:39,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:39,421 INFO L93 Difference]: Finished difference Result 153 states and 178 transitions. [2019-09-20 13:31:39,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:39,422 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:39,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:39,436 INFO L225 Difference]: With dead ends: 153 [2019-09-20 13:31:39,437 INFO L226 Difference]: Without dead ends: 142 [2019-09-20 13:31:39,439 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 13:31:39,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-09-20 13:31:39,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2019-09-20 13:31:39,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-09-20 13:31:39,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 166 transitions. [2019-09-20 13:31:39,497 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 166 transitions. Word has length 59 [2019-09-20 13:31:39,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:39,498 INFO L475 AbstractCegarLoop]: Abstraction has 142 states and 166 transitions. [2019-09-20 13:31:39,498 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:39,499 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 166 transitions. [2019-09-20 13:31:39,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:31:39,503 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:39,503 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] [2019-09-20 13:31:39,504 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:39,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:39,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1701396789, now seen corresponding path program 1 times [2019-09-20 13:31:39,505 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:39,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:39,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:39,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:39,508 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:39,669 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 13:31:39,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:39,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:39,671 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:39,674 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:39,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:39,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:39,676 INFO L87 Difference]: Start difference. First operand 142 states and 166 transitions. Second operand 3 states. [2019-09-20 13:31:39,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:39,713 INFO L93 Difference]: Finished difference Result 133 states and 154 transitions. [2019-09-20 13:31:39,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:39,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:31:39,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:39,717 INFO L225 Difference]: With dead ends: 133 [2019-09-20 13:31:39,717 INFO L226 Difference]: Without dead ends: 133 [2019-09-20 13:31:39,719 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 13:31:39,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-09-20 13:31:39,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-09-20 13:31:39,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-09-20 13:31:39,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 154 transitions. [2019-09-20 13:31:39,748 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 154 transitions. Word has length 60 [2019-09-20 13:31:39,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:39,749 INFO L475 AbstractCegarLoop]: Abstraction has 133 states and 154 transitions. [2019-09-20 13:31:39,749 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:39,749 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 154 transitions. [2019-09-20 13:31:39,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:31:39,754 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:39,754 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] [2019-09-20 13:31:39,756 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:39,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:39,756 INFO L82 PathProgramCache]: Analyzing trace with hash -835538636, now seen corresponding path program 1 times [2019-09-20 13:31:39,756 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:39,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:39,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:39,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:39,761 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:39,941 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 13:31:39,941 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:39,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:39,944 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:39,945 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:39,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:39,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:39,946 INFO L87 Difference]: Start difference. First operand 133 states and 154 transitions. Second operand 7 states. [2019-09-20 13:31:40,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:40,269 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2019-09-20 13:31:40,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:40,269 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-20 13:31:40,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:40,272 INFO L225 Difference]: With dead ends: 133 [2019-09-20 13:31:40,272 INFO L226 Difference]: Without dead ends: 133 [2019-09-20 13:31:40,273 INFO L636 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 [2019-09-20 13:31:40,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-09-20 13:31:40,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-09-20 13:31:40,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-09-20 13:31:40,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2019-09-20 13:31:40,284 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 65 [2019-09-20 13:31:40,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:40,286 INFO L475 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2019-09-20 13:31:40,286 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:40,287 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2019-09-20 13:31:40,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-20 13:31:40,290 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:40,290 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] [2019-09-20 13:31:40,291 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:40,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:40,291 INFO L82 PathProgramCache]: Analyzing trace with hash -192684169, now seen corresponding path program 1 times [2019-09-20 13:31:40,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:40,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:40,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:40,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:40,296 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:40,556 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 13:31:40,557 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:40,557 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:31:40,559 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:40,559 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:31:40,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:31:40,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:31:40,562 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand 5 states. [2019-09-20 13:31:41,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:41,102 INFO L93 Difference]: Finished difference Result 239 states and 278 transitions. [2019-09-20 13:31:41,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:31:41,102 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2019-09-20 13:31:41,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:41,106 INFO L225 Difference]: With dead ends: 239 [2019-09-20 13:31:41,106 INFO L226 Difference]: Without dead ends: 239 [2019-09-20 13:31:41,107 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 13:31:41,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-09-20 13:31:41,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 220. [2019-09-20 13:31:41,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-09-20 13:31:41,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 252 transitions. [2019-09-20 13:31:41,126 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 252 transitions. Word has length 78 [2019-09-20 13:31:41,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:41,126 INFO L475 AbstractCegarLoop]: Abstraction has 220 states and 252 transitions. [2019-09-20 13:31:41,126 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:31:41,126 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 252 transitions. [2019-09-20 13:31:41,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-20 13:31:41,129 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:41,130 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] [2019-09-20 13:31:41,130 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:41,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:41,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1827957124, now seen corresponding path program 1 times [2019-09-20 13:31:41,131 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:41,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:41,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:41,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:41,134 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:41,293 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 13:31:41,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:41,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:31:41,294 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:41,294 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:31:41,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:31:41,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:41,295 INFO L87 Difference]: Start difference. First operand 220 states and 252 transitions. Second operand 8 states. [2019-09-20 13:31:41,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:41,341 INFO L93 Difference]: Finished difference Result 227 states and 259 transitions. [2019-09-20 13:31:41,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:31:41,342 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2019-09-20 13:31:41,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:41,345 INFO L225 Difference]: With dead ends: 227 [2019-09-20 13:31:41,346 INFO L226 Difference]: Without dead ends: 227 [2019-09-20 13:31:41,346 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 13:31:41,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-09-20 13:31:41,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 224. [2019-09-20 13:31:41,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-09-20 13:31:41,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 256 transitions. [2019-09-20 13:31:41,385 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 256 transitions. Word has length 92 [2019-09-20 13:31:41,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:41,386 INFO L475 AbstractCegarLoop]: Abstraction has 224 states and 256 transitions. [2019-09-20 13:31:41,386 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:31:41,386 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 256 transitions. [2019-09-20 13:31:41,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-20 13:31:41,388 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:41,388 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] [2019-09-20 13:31:41,389 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:41,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:41,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1850589378, now seen corresponding path program 1 times [2019-09-20 13:31:41,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:41,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:41,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:41,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:41,393 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:41,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:31:41,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:41,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:41,529 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:41,531 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:41,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:41,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:41,532 INFO L87 Difference]: Start difference. First operand 224 states and 256 transitions. Second operand 7 states. [2019-09-20 13:31:42,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:42,264 INFO L93 Difference]: Finished difference Result 242 states and 282 transitions. [2019-09-20 13:31:42,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:31:42,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2019-09-20 13:31:42,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:42,268 INFO L225 Difference]: With dead ends: 242 [2019-09-20 13:31:42,268 INFO L226 Difference]: Without dead ends: 242 [2019-09-20 13:31:42,269 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:31:42,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-09-20 13:31:42,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 223. [2019-09-20 13:31:42,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2019-09-20 13:31:42,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 253 transitions. [2019-09-20 13:31:42,281 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 253 transitions. Word has length 92 [2019-09-20 13:31:42,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:42,281 INFO L475 AbstractCegarLoop]: Abstraction has 223 states and 253 transitions. [2019-09-20 13:31:42,282 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:42,282 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 253 transitions. [2019-09-20 13:31:42,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-20 13:31:42,283 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:42,284 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] [2019-09-20 13:31:42,284 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:42,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:42,284 INFO L82 PathProgramCache]: Analyzing trace with hash -185232827, now seen corresponding path program 1 times [2019-09-20 13:31:42,285 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:42,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:42,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:42,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:42,287 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:42,352 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 13:31:42,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:42,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:31:42,353 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:42,353 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:31:42,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:31:42,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:31:42,354 INFO L87 Difference]: Start difference. First operand 223 states and 253 transitions. Second operand 6 states. [2019-09-20 13:31:42,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:42,379 INFO L93 Difference]: Finished difference Result 228 states and 258 transitions. [2019-09-20 13:31:42,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:42,380 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2019-09-20 13:31:42,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:42,382 INFO L225 Difference]: With dead ends: 228 [2019-09-20 13:31:42,383 INFO L226 Difference]: Without dead ends: 228 [2019-09-20 13:31:42,383 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 13:31:42,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-09-20 13:31:42,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2019-09-20 13:31:42,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-09-20 13:31:42,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 258 transitions. [2019-09-20 13:31:42,393 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 258 transitions. Word has length 93 [2019-09-20 13:31:42,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:42,394 INFO L475 AbstractCegarLoop]: Abstraction has 228 states and 258 transitions. [2019-09-20 13:31:42,394 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:31:42,394 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 258 transitions. [2019-09-20 13:31:42,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-20 13:31:42,395 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:42,395 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] [2019-09-20 13:31:42,396 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:42,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:42,396 INFO L82 PathProgramCache]: Analyzing trace with hash -2053119352, now seen corresponding path program 1 times [2019-09-20 13:31:42,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:42,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:42,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:42,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:42,399 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:42,471 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 13:31:42,472 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:42,472 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:31:42,472 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:42,473 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:31:42,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:31:42,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:42,474 INFO L87 Difference]: Start difference. First operand 228 states and 258 transitions. Second operand 4 states. [2019-09-20 13:31:42,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:42,695 INFO L93 Difference]: Finished difference Result 467 states and 549 transitions. [2019-09-20 13:31:42,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:31:42,696 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 93 [2019-09-20 13:31:42,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:42,699 INFO L225 Difference]: With dead ends: 467 [2019-09-20 13:31:42,699 INFO L226 Difference]: Without dead ends: 467 [2019-09-20 13:31:42,700 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 1 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 13:31:42,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2019-09-20 13:31:42,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 458. [2019-09-20 13:31:42,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2019-09-20 13:31:42,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 532 transitions. [2019-09-20 13:31:42,722 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 532 transitions. Word has length 93 [2019-09-20 13:31:42,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:42,722 INFO L475 AbstractCegarLoop]: Abstraction has 458 states and 532 transitions. [2019-09-20 13:31:42,722 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:31:42,722 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 532 transitions. [2019-09-20 13:31:42,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-20 13:31:42,724 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:42,724 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] [2019-09-20 13:31:42,725 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:42,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:42,725 INFO L82 PathProgramCache]: Analyzing trace with hash 868259694, now seen corresponding path program 1 times [2019-09-20 13:31:42,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:42,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:42,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:42,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:42,728 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:42,927 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 13:31:42,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:42,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:31:42,928 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:42,929 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:31:42,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:31:42,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:31:42,930 INFO L87 Difference]: Start difference. First operand 458 states and 532 transitions. Second operand 9 states. [2019-09-20 13:31:44,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:44,026 INFO L93 Difference]: Finished difference Result 845 states and 983 transitions. [2019-09-20 13:31:44,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-20 13:31:44,027 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2019-09-20 13:31:44,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:44,032 INFO L225 Difference]: With dead ends: 845 [2019-09-20 13:31:44,032 INFO L226 Difference]: Without dead ends: 845 [2019-09-20 13:31:44,033 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-09-20 13:31:44,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-09-20 13:31:44,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 764. [2019-09-20 13:31:44,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 764 states. [2019-09-20 13:31:44,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 877 transitions. [2019-09-20 13:31:44,071 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 877 transitions. Word has length 97 [2019-09-20 13:31:44,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:44,072 INFO L475 AbstractCegarLoop]: Abstraction has 764 states and 877 transitions. [2019-09-20 13:31:44,072 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:31:44,072 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 877 transitions. [2019-09-20 13:31:44,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-09-20 13:31:44,075 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:44,075 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:44,076 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:44,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:44,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1063606964, now seen corresponding path program 1 times [2019-09-20 13:31:44,076 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:44,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:44,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:44,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:44,079 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-20 13:31:44,242 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:44,242 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:44,243 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 160 with the following transitions: [2019-09-20 13:31:44,247 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [85], [88], [92], [93], [94], [110], [114], [115], [116], [119], [121], [127], [131], [134], [135], [136], [145], [149], [153], [156], [159], [161], [167], [169], [175], [178], [188], [189], [199], [200], [201], [203], [208], [210], [211], [212], [213], [219], [222], [226], [232], [261], [265], [268], [271], [273], [276], [283], [286], [289], [293], [294], [297], [298], [299], [301], [302], [303], [305], [308], [310], [313], [316], [325], [327], [328], [329], [423], [424], [434], [442], [443], [444], [445], [446], [447], [448], [449], [450], [482], [483], [484], [485], [488], [489], [490], [491], [492], [493], [498], [499], [502], [503], [504], [505], [506], [507], [508], [509], [510], [511], [516], [517], [518], [519], [522], [523], [524], [525], [526], [527], [528], [529], [530], [534], [535], [536], [544], [545], [546] [2019-09-20 13:31:44,288 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:44,288 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:44,358 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:44,359 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 13:31:44,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:44,364 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:44,446 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:44,447 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:44,453 INFO L420 sIntCurrentIteration]: We unified 158 AI predicates to 158 [2019-09-20 13:31:44,453 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:44,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:44,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-20 13:31:44,454 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:44,455 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:44,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:44,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:44,455 INFO L87 Difference]: Start difference. First operand 764 states and 877 transitions. Second operand 2 states. [2019-09-20 13:31:44,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:44,456 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:44,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:44,456 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 159 [2019-09-20 13:31:44,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:44,457 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:44,457 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:44,457 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 158 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 13:31:44,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:44,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:44,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:44,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 159 [2019-09-20 13:31:44,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:44,458 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:44,458 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:44,459 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:44,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:44,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:44 BoogieIcfgContainer [2019-09-20 13:31:44,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:44,466 INFO L168 Benchmark]: Toolchain (without parser) took 7605.25 ms. Allocated memory was 130.0 MB in the beginning and 353.9 MB in the end (delta: 223.9 MB). Free memory was 84.7 MB in the beginning and 313.5 MB in the end (delta: -228.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:31:44,467 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 130.0 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:44,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.87 ms. Allocated memory was 130.0 MB in the beginning and 198.2 MB in the end (delta: 68.2 MB). Free memory was 84.5 MB in the beginning and 161.5 MB in the end (delta: -77.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:44,469 INFO L168 Benchmark]: Boogie Preprocessor took 87.44 ms. Allocated memory is still 198.2 MB. Free memory was 161.5 MB in the beginning and 157.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:44,470 INFO L168 Benchmark]: RCFGBuilder took 1200.46 ms. Allocated memory was 198.2 MB in the beginning and 216.5 MB in the end (delta: 18.4 MB). Free memory was 157.4 MB in the beginning and 187.2 MB in the end (delta: -29.8 MB). Peak memory consumption was 94.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:44,471 INFO L168 Benchmark]: TraceAbstraction took 5601.75 ms. Allocated memory was 216.5 MB in the beginning and 353.9 MB in the end (delta: 137.4 MB). Free memory was 185.9 MB in the beginning and 313.5 MB in the end (delta: -127.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:44,474 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 130.0 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.87 ms. Allocated memory was 130.0 MB in the beginning and 198.2 MB in the end (delta: 68.2 MB). Free memory was 84.5 MB in the beginning and 161.5 MB in the end (delta: -77.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.44 ms. Allocated memory is still 198.2 MB. Free memory was 161.5 MB in the beginning and 157.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1200.46 ms. Allocated memory was 198.2 MB in the beginning and 216.5 MB in the end (delta: 18.4 MB). Free memory was 157.4 MB in the beginning and 187.2 MB in the end (delta: -29.8 MB). Peak memory consumption was 94.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5601.75 ms. Allocated memory was 216.5 MB in the beginning and 353.9 MB in the end (delta: 137.4 MB). Free memory was 185.9 MB in the beginning and 313.5 MB in the end (delta: -127.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 43 procedures, 249 locations, 1 error locations. SAFE Result, 5.5s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1567 SDtfs, 1102 SDslu, 3083 SDs, 0 SdLazy, 1761 SolverSat, 395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 265 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=764occurred 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, 0.8481012658227848 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 131 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 888 NumberOfCodeBlocks, 888 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 878 ConstructedInterpolants, 0 QuantifiedInterpolants, 143215 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 63/70 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...