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-fea9116 [2019-09-20 13:30:08,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:08,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:08,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:08,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:08,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:08,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:08,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:08,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:08,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:08,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:08,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:08,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:08,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:08,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:08,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:08,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:08,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:08,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:08,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:08,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:08,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:08,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:08,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:08,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:08,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:08,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:08,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:08,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:08,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:08,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:08,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:08,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:08,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:08,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:08,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:08,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:08,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:08,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:08,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:08,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:08,678 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:30:08,693 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:08,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:08,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:08,693 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:08,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:08,694 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:08,694 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:08,695 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:08,695 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:08,695 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:08,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:08,696 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:08,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:08,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:08,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:08,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:08,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:08,697 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:08,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:08,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:08,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:08,698 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:08,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:08,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:08,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:08,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:08,699 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:08,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:08,699 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:08,700 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:08,739 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:08,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:08,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:08,762 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:08,763 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:08,763 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c [2019-09-20 13:30:08,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fc8e3ed8/3c5a0600005f4e338fcfef847b18a6b3/FLAGafeb10508 [2019-09-20 13:30:09,392 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:09,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c [2019-09-20 13:30:09,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fc8e3ed8/3c5a0600005f4e338fcfef847b18a6b3/FLAGafeb10508 [2019-09-20 13:30:09,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fc8e3ed8/3c5a0600005f4e338fcfef847b18a6b3 [2019-09-20 13:30:09,690 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:09,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:09,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:09,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:09,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:09,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:09" (1/1) ... [2019-09-20 13:30:09,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6da0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:09, skipping insertion in model container [2019-09-20 13:30:09,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:09" (1/1) ... [2019-09-20 13:30:09,711 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:09,774 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:10,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:10,260 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:10,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:10,422 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:10,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10 WrapperNode [2019-09-20 13:30:10,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:10,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:10,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:10,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:10,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2019-09-20 13:30:10,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2019-09-20 13:30:10,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2019-09-20 13:30:10,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2019-09-20 13:30:10,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2019-09-20 13:30:10,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2019-09-20 13:30:10,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2019-09-20 13:30:10,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:10,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:10,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:10,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:10,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:10,626 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:10,626 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:10,626 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:10,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:10,626 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:10,626 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:30:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:10,628 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:10,628 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:10,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:10,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:10,628 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:10,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:30:10,629 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:30:10,629 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:10,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:10,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:10,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:10,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:10,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:10,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:10,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:10,630 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:10,630 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:10,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:10,630 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:10,631 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:10,631 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:10,631 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:10,631 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:10,631 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:10,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:30:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:30:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:30:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:11,724 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:11,725 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:11,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:11 BoogieIcfgContainer [2019-09-20 13:30:11,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:11,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:11,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:11,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:11,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:09" (1/3) ... [2019-09-20 13:30:11,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e082120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:11, skipping insertion in model container [2019-09-20 13:30:11,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (2/3) ... [2019-09-20 13:30:11,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e082120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:11, skipping insertion in model container [2019-09-20 13:30:11,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:11" (3/3) ... [2019-09-20 13:30:11,738 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2019-09-20 13:30:11,748 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:11,759 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:11,776 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:11,808 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:11,808 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:11,808 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:11,808 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:11,809 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:11,809 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:11,810 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:11,810 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:11,833 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states. [2019-09-20 13:30:11,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:11,848 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:11,849 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:11,852 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:11,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:11,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1292486909, now seen corresponding path program 1 times [2019-09-20 13:30:11,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:11,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:11,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:11,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:11,920 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:12,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:12,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:12,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:12,204 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:12,210 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:12,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:12,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:12,229 INFO L87 Difference]: Start difference. First operand 181 states. Second operand 2 states. [2019-09-20 13:30:12,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:12,257 INFO L93 Difference]: Finished difference Result 149 states and 175 transitions. [2019-09-20 13:30:12,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:12,259 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:12,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:12,272 INFO L225 Difference]: With dead ends: 149 [2019-09-20 13:30:12,272 INFO L226 Difference]: Without dead ends: 138 [2019-09-20 13:30:12,274 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:12,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-09-20 13:30:12,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-09-20 13:30:12,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-09-20 13:30:12,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 163 transitions. [2019-09-20 13:30:12,333 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 163 transitions. Word has length 51 [2019-09-20 13:30:12,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:12,334 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 163 transitions. [2019-09-20 13:30:12,334 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:12,334 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 163 transitions. [2019-09-20 13:30:12,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:12,338 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:12,338 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:12,338 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:12,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:12,339 INFO L82 PathProgramCache]: Analyzing trace with hash -11798802, now seen corresponding path program 1 times [2019-09-20 13:30:12,339 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:12,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:12,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:12,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:12,342 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:12,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:12,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:12,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:12,466 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:12,470 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:12,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:12,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:12,471 INFO L87 Difference]: Start difference. First operand 138 states and 163 transitions. Second operand 3 states. [2019-09-20 13:30:12,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:12,493 INFO L93 Difference]: Finished difference Result 129 states and 151 transitions. [2019-09-20 13:30:12,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:12,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:12,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:12,497 INFO L225 Difference]: With dead ends: 129 [2019-09-20 13:30:12,499 INFO L226 Difference]: Without dead ends: 129 [2019-09-20 13:30:12,499 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:12,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-09-20 13:30:12,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-09-20 13:30:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-09-20 13:30:12,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 151 transitions. [2019-09-20 13:30:12,526 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 151 transitions. Word has length 52 [2019-09-20 13:30:12,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:12,527 INFO L475 AbstractCegarLoop]: Abstraction has 129 states and 151 transitions. [2019-09-20 13:30:12,527 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:12,531 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 151 transitions. [2019-09-20 13:30:12,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:12,533 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:12,533 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:12,533 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:12,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:12,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1490469892, now seen corresponding path program 1 times [2019-09-20 13:30:12,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:12,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:12,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:12,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:12,541 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:12,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:12,739 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:12,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:12,739 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:12,740 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:12,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:12,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:12,741 INFO L87 Difference]: Start difference. First operand 129 states and 151 transitions. Second operand 7 states. [2019-09-20 13:30:13,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:13,290 INFO L93 Difference]: Finished difference Result 281 states and 340 transitions. [2019-09-20 13:30:13,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:13,291 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:30:13,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:13,297 INFO L225 Difference]: With dead ends: 281 [2019-09-20 13:30:13,297 INFO L226 Difference]: Without dead ends: 281 [2019-09-20 13:30:13,298 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 13:30:13,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-09-20 13:30:13,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 269. [2019-09-20 13:30:13,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-09-20 13:30:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 328 transitions. [2019-09-20 13:30:13,358 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 328 transitions. Word has length 57 [2019-09-20 13:30:13,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:13,360 INFO L475 AbstractCegarLoop]: Abstraction has 269 states and 328 transitions. [2019-09-20 13:30:13,360 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:13,361 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 328 transitions. [2019-09-20 13:30:13,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:30:13,367 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:13,367 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:13,368 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:13,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:13,368 INFO L82 PathProgramCache]: Analyzing trace with hash -512554003, now seen corresponding path program 1 times [2019-09-20 13:30:13,368 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:13,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:13,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:13,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:13,395 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:13,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:13,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:13,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:13,535 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:13,536 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:13,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:13,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:13,537 INFO L87 Difference]: Start difference. First operand 269 states and 328 transitions. Second operand 6 states. [2019-09-20 13:30:13,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:13,764 INFO L93 Difference]: Finished difference Result 492 states and 602 transitions. [2019-09-20 13:30:13,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:13,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-20 13:30:13,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:13,774 INFO L225 Difference]: With dead ends: 492 [2019-09-20 13:30:13,774 INFO L226 Difference]: Without dead ends: 492 [2019-09-20 13:30:13,775 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:13,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2019-09-20 13:30:13,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 486. [2019-09-20 13:30:13,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 486 states. [2019-09-20 13:30:13,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 596 transitions. [2019-09-20 13:30:13,808 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 596 transitions. Word has length 62 [2019-09-20 13:30:13,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:13,808 INFO L475 AbstractCegarLoop]: Abstraction has 486 states and 596 transitions. [2019-09-20 13:30:13,808 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:13,809 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 596 transitions. [2019-09-20 13:30:13,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-20 13:30:13,811 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:13,811 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:13,811 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:13,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:13,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1361940215, now seen corresponding path program 1 times [2019-09-20 13:30:13,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:13,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:13,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:13,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:13,819 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:13,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:13,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:13,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:13,981 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:13,981 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:13,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:13,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:13,984 INFO L87 Difference]: Start difference. First operand 486 states and 596 transitions. Second operand 7 states. [2019-09-20 13:30:14,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:14,811 INFO L93 Difference]: Finished difference Result 813 states and 1038 transitions. [2019-09-20 13:30:14,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:30:14,811 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-09-20 13:30:14,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:14,817 INFO L225 Difference]: With dead ends: 813 [2019-09-20 13:30:14,818 INFO L226 Difference]: Without dead ends: 813 [2019-09-20 13:30:14,818 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:30:14,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2019-09-20 13:30:14,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 715. [2019-09-20 13:30:14,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 715 states. [2019-09-20 13:30:14,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 871 transitions. [2019-09-20 13:30:14,863 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 871 transitions. Word has length 66 [2019-09-20 13:30:14,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:14,864 INFO L475 AbstractCegarLoop]: Abstraction has 715 states and 871 transitions. [2019-09-20 13:30:14,864 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:14,864 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 871 transitions. [2019-09-20 13:30:14,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:14,868 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:14,868 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:14,869 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:14,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:14,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1572074791, now seen corresponding path program 1 times [2019-09-20 13:30:14,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:14,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:14,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:14,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:14,872 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:14,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:14,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:14,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:30:14,995 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:14,995 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:30:14,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:30:14,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:14,996 INFO L87 Difference]: Start difference. First operand 715 states and 871 transitions. Second operand 4 states. [2019-09-20 13:30:15,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:15,251 INFO L93 Difference]: Finished difference Result 1937 states and 2485 transitions. [2019-09-20 13:30:15,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:30:15,251 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2019-09-20 13:30:15,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:15,264 INFO L225 Difference]: With dead ends: 1937 [2019-09-20 13:30:15,265 INFO L226 Difference]: Without dead ends: 1937 [2019-09-20 13:30:15,265 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:15,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2019-09-20 13:30:15,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1891. [2019-09-20 13:30:15,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1891 states. [2019-09-20 13:30:15,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2393 transitions. [2019-09-20 13:30:15,342 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2393 transitions. Word has length 89 [2019-09-20 13:30:15,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:15,343 INFO L475 AbstractCegarLoop]: Abstraction has 1891 states and 2393 transitions. [2019-09-20 13:30:15,343 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:30:15,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2393 transitions. [2019-09-20 13:30:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:15,347 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:15,347 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:15,347 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:15,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:15,348 INFO L82 PathProgramCache]: Analyzing trace with hash -153406106, now seen corresponding path program 1 times [2019-09-20 13:30:15,348 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:15,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:15,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:15,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:15,351 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:15,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:15,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:15,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:15,448 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:15,449 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:15,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:15,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:15,450 INFO L87 Difference]: Start difference. First operand 1891 states and 2393 transitions. Second operand 6 states. [2019-09-20 13:30:15,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:15,493 INFO L93 Difference]: Finished difference Result 1951 states and 2457 transitions. [2019-09-20 13:30:15,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:15,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-09-20 13:30:15,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:15,506 INFO L225 Difference]: With dead ends: 1951 [2019-09-20 13:30:15,506 INFO L226 Difference]: Without dead ends: 1951 [2019-09-20 13:30:15,507 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:15,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2019-09-20 13:30:15,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1951. [2019-09-20 13:30:15,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1951 states. [2019-09-20 13:30:15,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2457 transitions. [2019-09-20 13:30:15,583 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2457 transitions. Word has length 89 [2019-09-20 13:30:15,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:15,584 INFO L475 AbstractCegarLoop]: Abstraction has 1951 states and 2457 transitions. [2019-09-20 13:30:15,584 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:15,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2457 transitions. [2019-09-20 13:30:15,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:15,624 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:15,624 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:15,625 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:15,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:15,625 INFO L82 PathProgramCache]: Analyzing trace with hash 548193768, now seen corresponding path program 1 times [2019-09-20 13:30:15,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:15,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:15,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:15,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:15,627 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:15,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:15,705 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:15,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:30:15,706 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:15,706 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:30:15,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:30:15,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:15,707 INFO L87 Difference]: Start difference. First operand 1951 states and 2457 transitions. Second operand 8 states. [2019-09-20 13:30:15,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:15,746 INFO L93 Difference]: Finished difference Result 1699 states and 2099 transitions. [2019-09-20 13:30:15,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:15,747 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2019-09-20 13:30:15,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:15,756 INFO L225 Difference]: With dead ends: 1699 [2019-09-20 13:30:15,756 INFO L226 Difference]: Without dead ends: 1699 [2019-09-20 13:30:15,756 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:15,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2019-09-20 13:30:15,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2019-09-20 13:30:15,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1699 states. [2019-09-20 13:30:15,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2099 transitions. [2019-09-20 13:30:15,822 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2099 transitions. Word has length 89 [2019-09-20 13:30:15,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:15,823 INFO L475 AbstractCegarLoop]: Abstraction has 1699 states and 2099 transitions. [2019-09-20 13:30:15,823 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:30:15,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2099 transitions. [2019-09-20 13:30:15,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-20 13:30:15,826 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:15,826 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:15,826 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:15,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:15,827 INFO L82 PathProgramCache]: Analyzing trace with hash 81932175, now seen corresponding path program 1 times [2019-09-20 13:30:15,827 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:15,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:15,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:15,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:15,829 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:15,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:15,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:15,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:15,902 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:15,902 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:15,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:15,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:15,903 INFO L87 Difference]: Start difference. First operand 1699 states and 2099 transitions. Second operand 3 states. [2019-09-20 13:30:15,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:15,949 INFO L93 Difference]: Finished difference Result 2683 states and 3419 transitions. [2019-09-20 13:30:15,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:15,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2019-09-20 13:30:15,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:15,969 INFO L225 Difference]: With dead ends: 2683 [2019-09-20 13:30:15,969 INFO L226 Difference]: Without dead ends: 2683 [2019-09-20 13:30:15,970 INFO L636 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 [2019-09-20 13:30:15,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2019-09-20 13:30:16,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2523. [2019-09-20 13:30:16,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2523 states. [2019-09-20 13:30:16,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3229 transitions. [2019-09-20 13:30:16,093 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3229 transitions. Word has length 93 [2019-09-20 13:30:16,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:16,094 INFO L475 AbstractCegarLoop]: Abstraction has 2523 states and 3229 transitions. [2019-09-20 13:30:16,095 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:16,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3229 transitions. [2019-09-20 13:30:16,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-09-20 13:30:16,109 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:16,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:16,109 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:16,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:16,110 INFO L82 PathProgramCache]: Analyzing trace with hash 688265763, now seen corresponding path program 1 times [2019-09-20 13:30:16,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:16,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:16,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:16,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:16,113 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:16,336 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-20 13:30:16,337 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:30:16,337 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:30:16,338 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2019-09-20 13:30:16,342 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [92], [108], [112], [113], [114], [117], [119], [125], [129], [132], [133], [134], [143], [147], [151], [154], [157], [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] [2019-09-20 13:30:16,406 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:30:16,407 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:30:16,526 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:30:16,528 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. [2019-09-20 13:30:16,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:16,533 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:30:16,626 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:30:16,627 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:30:16,632 INFO L420 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2019-09-20 13:30:16,632 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:30:16,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:30:16,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-20 13:30:16,633 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:16,634 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:16,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:16,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:16,635 INFO L87 Difference]: Start difference. First operand 2523 states and 3229 transitions. Second operand 2 states. [2019-09-20 13:30:16,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:16,635 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:30:16,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:16,636 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-09-20 13:30:16,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:16,636 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:30:16,636 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:16,637 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:16,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:16,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:16,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:16,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:16,638 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2019-09-20 13:30:16,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:16,638 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:16,638 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:16,638 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:16,638 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:16,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:16 BoogieIcfgContainer [2019-09-20 13:30:16,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:16,647 INFO L168 Benchmark]: Toolchain (without parser) took 6954.53 ms. Allocated memory was 132.1 MB in the beginning and 335.0 MB in the end (delta: 202.9 MB). Free memory was 85.2 MB in the beginning and 90.9 MB in the end (delta: -5.8 MB). Peak memory consumption was 197.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:16,647 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 132.1 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:16,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.19 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 84.9 MB in the beginning and 163.8 MB in the end (delta: -78.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:16,649 INFO L168 Benchmark]: Boogie Preprocessor took 105.81 ms. Allocated memory is still 199.2 MB. Free memory was 163.8 MB in the beginning and 159.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:16,650 INFO L168 Benchmark]: RCFGBuilder took 1198.16 ms. Allocated memory was 199.2 MB in the beginning and 221.8 MB in the end (delta: 22.5 MB). Free memory was 159.4 MB in the beginning and 191.0 MB in the end (delta: -31.6 MB). Peak memory consumption was 91.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:16,651 INFO L168 Benchmark]: TraceAbstraction took 4914.65 ms. Allocated memory was 221.8 MB in the beginning and 335.0 MB in the end (delta: 113.2 MB). Free memory was 189.7 MB in the beginning and 90.9 MB in the end (delta: 98.7 MB). Peak memory consumption was 212.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:16,656 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 132.1 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.19 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 84.9 MB in the beginning and 163.8 MB in the end (delta: -78.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.81 ms. Allocated memory is still 199.2 MB. Free memory was 163.8 MB in the beginning and 159.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1198.16 ms. Allocated memory was 199.2 MB in the beginning and 221.8 MB in the end (delta: 22.5 MB). Free memory was 159.4 MB in the beginning and 191.0 MB in the end (delta: -31.6 MB). Peak memory consumption was 91.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4914.65 ms. Allocated memory was 221.8 MB in the beginning and 335.0 MB in the end (delta: 113.2 MB). Free memory was 189.7 MB in the beginning and 90.9 MB in the end (delta: 98.7 MB). Peak memory consumption was 212.0 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, 4.8s 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, 231 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s 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, 0.8344370860927153 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 322 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 800 NumberOfCodeBlocks, 800 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 790 ConstructedInterpolants, 0 QuantifiedInterpolants, 113630 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 40/42 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...