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_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:48:49,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:48:49,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:48:49,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:48:49,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:48:49,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:48:49,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:48:49,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:48:49,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:48:49,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:48:49,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:48:49,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:48:49,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:48:49,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:48:49,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:48:49,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:48:49,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:48:49,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:48:49,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:48:49,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:48:49,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:48:49,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:48:49,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:48:49,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:48:49,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:48:49,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:48:49,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:48:49,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:48:49,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:48:49,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:48:49,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:48:49,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:48:49,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:48:49,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:48:49,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:48:49,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:48:49,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:48:49,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:48:49,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:48:49,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:48:49,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:48:49,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:48:49,765 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:48:49,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:48:49,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:48:49,766 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:48:49,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:48:49,767 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:48:49,767 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:48:49,767 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:48:49,767 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:48:49,768 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:48:49,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:48:49,768 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:48:49,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:48:49,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:48:49,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:48:49,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:48:49,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:48:49,770 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:48:49,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:48:49,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:48:49,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:48:49,770 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:48:49,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:48:49,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:49,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:48:49,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:48:49,771 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:48:49,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:48:49,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:48:49,772 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:48:49,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:48:49,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:48:49,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:48:49,820 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:48:49,821 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:48:49,821 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2019-09-10 02:48:49,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99da7cda/dc44653796934bfba04fb0bfd3768c76/FLAGe2d35a37c [2019-09-10 02:48:50,490 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:48:50,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2019-09-10 02:48:50,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99da7cda/dc44653796934bfba04fb0bfd3768c76/FLAGe2d35a37c [2019-09-10 02:48:50,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99da7cda/dc44653796934bfba04fb0bfd3768c76 [2019-09-10 02:48:50,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:48:50,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:48:50,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:50,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:48:50,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:48:50,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:50" (1/1) ... [2019-09-10 02:48:50,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@111c15b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:50, skipping insertion in model container [2019-09-10 02:48:50,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:50" (1/1) ... [2019-09-10 02:48:50,808 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:48:50,868 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:48:51,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:51,263 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:48:51,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:51,477 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:48:51,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:51 WrapperNode [2019-09-10 02:48:51,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:51,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:48:51,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:48:51,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:48:51,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:51" (1/1) ... [2019-09-10 02:48:51,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:51" (1/1) ... [2019-09-10 02:48:51,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:51" (1/1) ... [2019-09-10 02:48:51,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:51" (1/1) ... [2019-09-10 02:48:51,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:51" (1/1) ... [2019-09-10 02:48:51,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:51" (1/1) ... [2019-09-10 02:48:51,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:51" (1/1) ... [2019-09-10 02:48:51,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:48:51,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:48:51,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:48:51,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:48:51,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:48:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:48:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:48:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:48:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:48:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:48:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:48:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:48:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:48:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:48:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:48:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:48:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:48:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:48:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:48:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:48:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:48:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:48:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:48:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:48:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:48:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:48:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:48:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:48:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:48:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-09-10 02:48:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:48:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:48:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:48:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:48:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:48:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:48:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:48:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:48:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:48:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:48:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:48:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:48:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:48:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:48:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:48:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:48:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:48:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:48:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:48:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:48:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:48:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:48:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:48:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:48:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:48:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:48:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:48:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:48:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:48:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:48:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:48:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:48:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:48:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:48:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:48:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:48:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:48:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:48:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:48:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:48:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:48:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:48:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:48:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:48:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:48:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:48:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:48:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:48:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:48:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:48:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:48:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:48:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:48:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-09-10 02:48:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:48:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:48:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:48:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:48:52,775 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:48:52,776 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:48:52,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:52 BoogieIcfgContainer [2019-09-10 02:48:52,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:48:52,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:48:52,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:48:52,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:48:52,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:48:50" (1/3) ... [2019-09-10 02:48:52,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f96a04e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:52, skipping insertion in model container [2019-09-10 02:48:52,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:51" (2/3) ... [2019-09-10 02:48:52,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f96a04e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:52, skipping insertion in model container [2019-09-10 02:48:52,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:52" (3/3) ... [2019-09-10 02:48:52,789 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2019-09-10 02:48:52,800 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:48:52,810 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:48:52,828 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:48:52,866 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:48:52,866 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:48:52,866 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:48:52,866 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:48:52,866 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:48:52,867 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:48:52,867 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:48:52,868 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:48:52,890 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2019-09-10 02:48:52,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:48:52,902 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:52,903 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:52,906 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:52,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:52,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1550424879, now seen corresponding path program 1 times [2019-09-10 02:48:52,914 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:52,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:52,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:52,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:52,963 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:53,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:53,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:53,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:48:53,250 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:53,256 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:53,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:53,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:53,275 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 2 states. [2019-09-10 02:48:53,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:53,324 INFO L93 Difference]: Finished difference Result 150 states and 176 transitions. [2019-09-10 02:48:53,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:53,336 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-10 02:48:53,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:53,360 INFO L225 Difference]: With dead ends: 150 [2019-09-10 02:48:53,361 INFO L226 Difference]: Without dead ends: 139 [2019-09-10 02:48:53,365 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:53,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-09-10 02:48:53,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2019-09-10 02:48:53,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-09-10 02:48:53,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2019-09-10 02:48:53,478 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 51 [2019-09-10 02:48:53,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:53,479 INFO L475 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2019-09-10 02:48:53,479 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:53,480 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2019-09-10 02:48:53,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:48:53,486 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:53,486 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:53,487 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:53,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:53,488 INFO L82 PathProgramCache]: Analyzing trace with hash 2147140265, now seen corresponding path program 1 times [2019-09-10 02:48:53,489 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:53,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:53,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:53,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:53,491 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:53,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:53,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:53,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:48:53,669 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:53,671 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:48:53,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:48:53,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:53,672 INFO L87 Difference]: Start difference. First operand 139 states and 164 transitions. Second operand 3 states. [2019-09-10 02:48:53,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:53,688 INFO L93 Difference]: Finished difference Result 130 states and 152 transitions. [2019-09-10 02:48:53,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:48:53,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-10 02:48:53,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:53,691 INFO L225 Difference]: With dead ends: 130 [2019-09-10 02:48:53,692 INFO L226 Difference]: Without dead ends: 130 [2019-09-10 02:48:53,693 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:53,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-09-10 02:48:53,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2019-09-10 02:48:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-09-10 02:48:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2019-09-10 02:48:53,705 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 52 [2019-09-10 02:48:53,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:53,705 INFO L475 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2019-09-10 02:48:53,705 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:48:53,706 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2019-09-10 02:48:53,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:48:53,708 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:53,708 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:53,708 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:53,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:53,709 INFO L82 PathProgramCache]: Analyzing trace with hash 871775649, now seen corresponding path program 1 times [2019-09-10 02:48:53,709 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:53,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:53,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:53,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:53,710 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:53,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:53,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:53,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:53,857 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:53,857 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:53,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:53,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:53,858 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand 7 states. [2019-09-10 02:48:54,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:54,240 INFO L93 Difference]: Finished difference Result 130 states and 151 transitions. [2019-09-10 02:48:54,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:48:54,241 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-10 02:48:54,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:54,245 INFO L225 Difference]: With dead ends: 130 [2019-09-10 02:48:54,246 INFO L226 Difference]: Without dead ends: 130 [2019-09-10 02:48:54,248 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:48:54,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-09-10 02:48:54,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2019-09-10 02:48:54,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-09-10 02:48:54,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2019-09-10 02:48:54,273 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 57 [2019-09-10 02:48:54,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:54,273 INFO L475 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2019-09-10 02:48:54,274 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:54,274 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2019-09-10 02:48:54,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 02:48:54,286 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:54,286 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:54,287 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:54,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:54,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1442711131, now seen corresponding path program 1 times [2019-09-10 02:48:54,288 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:54,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:54,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:54,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:54,290 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:54,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:54,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:54,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:48:54,432 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:54,434 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:48:54,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:48:54,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:48:54,434 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 5 states. [2019-09-10 02:48:55,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:55,012 INFO L93 Difference]: Finished difference Result 238 states and 277 transitions. [2019-09-10 02:48:55,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:48:55,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-09-10 02:48:55,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:55,015 INFO L225 Difference]: With dead ends: 238 [2019-09-10 02:48:55,016 INFO L226 Difference]: Without dead ends: 238 [2019-09-10 02:48:55,016 INFO L628 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 [2019-09-10 02:48:55,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2019-09-10 02:48:55,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 219. [2019-09-10 02:48:55,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-09-10 02:48:55,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 251 transitions. [2019-09-10 02:48:55,045 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 251 transitions. Word has length 70 [2019-09-10 02:48:55,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:55,045 INFO L475 AbstractCegarLoop]: Abstraction has 219 states and 251 transitions. [2019-09-10 02:48:55,045 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:48:55,046 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 251 transitions. [2019-09-10 02:48:55,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 02:48:55,047 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:55,047 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:55,048 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:55,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:55,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1583652076, now seen corresponding path program 1 times [2019-09-10 02:48:55,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:55,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:55,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:55,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:55,050 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:55,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:55,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:55,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:55,149 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:55,149 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:55,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:55,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:55,150 INFO L87 Difference]: Start difference. First operand 219 states and 251 transitions. Second operand 6 states. [2019-09-10 02:48:55,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:55,382 INFO L93 Difference]: Finished difference Result 392 states and 449 transitions. [2019-09-10 02:48:55,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:55,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-09-10 02:48:55,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:55,392 INFO L225 Difference]: With dead ends: 392 [2019-09-10 02:48:55,392 INFO L226 Difference]: Without dead ends: 392 [2019-09-10 02:48:55,393 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:48:55,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-09-10 02:48:55,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 386. [2019-09-10 02:48:55,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2019-09-10 02:48:55,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 442 transitions. [2019-09-10 02:48:55,442 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 442 transitions. Word has length 84 [2019-09-10 02:48:55,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:55,444 INFO L475 AbstractCegarLoop]: Abstraction has 386 states and 442 transitions. [2019-09-10 02:48:55,445 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:55,445 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 442 transitions. [2019-09-10 02:48:55,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-10 02:48:55,446 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:55,447 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:55,447 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:55,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:55,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1422526648, now seen corresponding path program 1 times [2019-09-10 02:48:55,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:55,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:55,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:55,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:55,449 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:55,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:55,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:55,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:55,578 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:55,578 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:55,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:55,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:55,579 INFO L87 Difference]: Start difference. First operand 386 states and 442 transitions. Second operand 7 states. [2019-09-10 02:48:56,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:56,272 INFO L93 Difference]: Finished difference Result 417 states and 491 transitions. [2019-09-10 02:48:56,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:48:56,273 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2019-09-10 02:48:56,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:56,276 INFO L225 Difference]: With dead ends: 417 [2019-09-10 02:48:56,277 INFO L226 Difference]: Without dead ends: 417 [2019-09-10 02:48:56,277 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:48:56,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2019-09-10 02:48:56,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 385. [2019-09-10 02:48:56,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2019-09-10 02:48:56,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 439 transitions. [2019-09-10 02:48:56,297 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 439 transitions. Word has length 88 [2019-09-10 02:48:56,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:56,297 INFO L475 AbstractCegarLoop]: Abstraction has 385 states and 439 transitions. [2019-09-10 02:48:56,298 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:56,298 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 439 transitions. [2019-09-10 02:48:56,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-10 02:48:56,299 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:56,300 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:56,300 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:56,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:56,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1956386739, now seen corresponding path program 1 times [2019-09-10 02:48:56,301 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:56,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:56,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:56,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:56,302 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:48:56,379 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:56,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:56,379 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:56,380 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:56,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:56,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:56,380 INFO L87 Difference]: Start difference. First operand 385 states and 439 transitions. Second operand 6 states. [2019-09-10 02:48:56,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:56,413 INFO L93 Difference]: Finished difference Result 399 states and 453 transitions. [2019-09-10 02:48:56,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:48:56,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2019-09-10 02:48:56,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:56,416 INFO L225 Difference]: With dead ends: 399 [2019-09-10 02:48:56,416 INFO L226 Difference]: Without dead ends: 399 [2019-09-10 02:48:56,417 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:56,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-09-10 02:48:56,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 395. [2019-09-10 02:48:56,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2019-09-10 02:48:56,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 449 transitions. [2019-09-10 02:48:56,434 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 449 transitions. Word has length 104 [2019-09-10 02:48:56,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:56,434 INFO L475 AbstractCegarLoop]: Abstraction has 395 states and 449 transitions. [2019-09-10 02:48:56,435 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:56,435 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 449 transitions. [2019-09-10 02:48:56,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-10 02:48:56,437 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:56,437 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:56,437 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:56,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:56,438 INFO L82 PathProgramCache]: Analyzing trace with hash -28114037, now seen corresponding path program 1 times [2019-09-10 02:48:56,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:56,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:56,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:56,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:56,439 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:56,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:48:56,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:56,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:48:56,547 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:56,547 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:48:56,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:48:56,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:48:56,548 INFO L87 Difference]: Start difference. First operand 395 states and 449 transitions. Second operand 8 states. [2019-09-10 02:48:56,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:56,586 INFO L93 Difference]: Finished difference Result 409 states and 463 transitions. [2019-09-10 02:48:56,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:56,586 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2019-09-10 02:48:56,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:56,589 INFO L225 Difference]: With dead ends: 409 [2019-09-10 02:48:56,589 INFO L226 Difference]: Without dead ends: 409 [2019-09-10 02:48:56,589 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:48:56,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2019-09-10 02:48:56,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 403. [2019-09-10 02:48:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-09-10 02:48:56,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 457 transitions. [2019-09-10 02:48:56,605 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 457 transitions. Word has length 104 [2019-09-10 02:48:56,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:56,606 INFO L475 AbstractCegarLoop]: Abstraction has 403 states and 457 transitions. [2019-09-10 02:48:56,606 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:48:56,606 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 457 transitions. [2019-09-10 02:48:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-10 02:48:56,607 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:56,608 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:56,608 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:56,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:56,609 INFO L82 PathProgramCache]: Analyzing trace with hash -268654166, now seen corresponding path program 1 times [2019-09-10 02:48:56,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:56,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:56,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:56,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:56,610 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:48:56,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:56,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:48:56,686 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:56,687 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:48:56,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:48:56,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:48:56,688 INFO L87 Difference]: Start difference. First operand 403 states and 457 transitions. Second operand 4 states. [2019-09-10 02:48:56,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:56,901 INFO L93 Difference]: Finished difference Result 813 states and 963 transitions. [2019-09-10 02:48:56,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:48:56,902 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2019-09-10 02:48:56,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:56,907 INFO L225 Difference]: With dead ends: 813 [2019-09-10 02:48:56,907 INFO L226 Difference]: Without dead ends: 813 [2019-09-10 02:48:56,908 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:48:56,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2019-09-10 02:48:56,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 798. [2019-09-10 02:48:56,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 798 states. [2019-09-10 02:48:56,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 931 transitions. [2019-09-10 02:48:56,941 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 931 transitions. Word has length 104 [2019-09-10 02:48:56,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:56,941 INFO L475 AbstractCegarLoop]: Abstraction has 798 states and 931 transitions. [2019-09-10 02:48:56,941 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:48:56,942 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 931 transitions. [2019-09-10 02:48:56,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 02:48:56,944 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:56,944 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:56,945 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:56,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:56,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1852641244, now seen corresponding path program 1 times [2019-09-10 02:48:56,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:56,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:56,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:56,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:56,947 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:57,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:48:57,093 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:48:57,094 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:48:57,095 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 02:48:57,097 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [103], [104], [105], [120], [123], [125], [134], [138], [142], [145], [150], [153], [158], [164], [167], [177], [179], [182], [184], [187], [190], [211], [212], [213], [215], [220], [223], [226], [228], [233], [235], [236], [237], [238], [244], [248], [292], [296], [297], [300], [301], [304], [306], [309], [319], [320], [321], [345], [347], [348], [366], [367], [417], [418], [425], [427], [428], [436], [437], [438], [439], [440], [441], [442], [443], [444], [482], [483], [484], [485], [486], [487], [490], [494], [495], [496], [497], [498], [500], [501], [502], [503], [504], [505], [508], [509], [510], [516], [517], [518], [519], [526], [527], [528], [530], [531], [536], [537], [538] [2019-09-10 02:48:57,163 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:48:57,163 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:48:57,272 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:48:57,274 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. [2019-09-10 02:48:57,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:57,280 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:48:57,368 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:48:57,369 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:48:57,379 INFO L420 sIntCurrentIteration]: We unified 107 AI predicates to 107 [2019-09-10 02:48:57,379 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:48:57,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:48:57,380 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-10 02:48:57,381 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:57,382 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:57,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:57,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:57,383 INFO L87 Difference]: Start difference. First operand 798 states and 931 transitions. Second operand 2 states. [2019-09-10 02:48:57,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:57,384 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:48:57,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:57,384 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 108 [2019-09-10 02:48:57,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:57,385 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:48:57,385 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:48:57,387 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:57,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:48:57,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:48:57,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:48:57,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:48:57,390 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2019-09-10 02:48:57,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:57,390 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:48:57,390 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:57,391 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:48:57,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:48:57,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:48:57 BoogieIcfgContainer [2019-09-10 02:48:57,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:48:57,402 INFO L168 Benchmark]: Toolchain (without parser) took 6609.96 ms. Allocated memory was 134.7 MB in the beginning and 308.8 MB in the end (delta: 174.1 MB). Free memory was 90.1 MB in the beginning and 118.9 MB in the end (delta: -28.8 MB). Peak memory consumption was 145.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:57,404 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:48:57,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.55 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 89.9 MB in the beginning and 165.8 MB in the end (delta: -75.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:57,407 INFO L168 Benchmark]: Boogie Preprocessor took 87.80 ms. Allocated memory is still 201.3 MB. Free memory was 165.8 MB in the beginning and 161.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:57,415 INFO L168 Benchmark]: RCFGBuilder took 1211.66 ms. Allocated memory was 201.3 MB in the beginning and 229.1 MB in the end (delta: 27.8 MB). Free memory was 161.4 MB in the beginning and 192.9 MB in the end (delta: -31.5 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:57,416 INFO L168 Benchmark]: TraceAbstraction took 4619.61 ms. Allocated memory was 229.1 MB in the beginning and 308.8 MB in the end (delta: 79.7 MB). Free memory was 192.9 MB in the beginning and 118.9 MB in the end (delta: 74.0 MB). Peak memory consumption was 153.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:57,428 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.55 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 89.9 MB in the beginning and 165.8 MB in the end (delta: -75.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.80 ms. Allocated memory is still 201.3 MB. Free memory was 165.8 MB in the beginning and 161.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1211.66 ms. Allocated memory was 201.3 MB in the beginning and 229.1 MB in the end (delta: 27.8 MB). Free memory was 161.4 MB in the beginning and 192.9 MB in the end (delta: -31.5 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4619.61 ms. Allocated memory was 229.1 MB in the beginning and 308.8 MB in the end (delta: 79.7 MB). Free memory was 192.9 MB in the beginning and 118.9 MB in the end (delta: 74.0 MB). Peak memory consumption was 153.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 858]: 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, 241 locations, 1 error locations. SAFE Result, 4.5s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1509 SDtfs, 823 SDslu, 3101 SDs, 0 SdLazy, 1099 SolverSat, 251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=798occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.0373831775700935 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 82 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 812 ConstructedInterpolants, 0 QuantifiedInterpolants, 114292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...