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_spec4_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:52,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:52,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:52,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:52,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:52,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:52,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:52,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:52,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:52,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:52,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:52,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:52,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:52,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:52,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:52,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:52,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:52,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:52,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:52,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:52,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:52,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:52,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:52,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:52,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:52,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:52,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:52,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:52,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:52,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:52,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:52,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:52,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:52,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:52,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:52,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:52,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:52,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:52,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:52,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:52,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:52,645 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 13:30:52,660 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:52,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:52,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:52,661 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:52,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:52,662 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:52,662 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:52,662 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:52,662 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:52,662 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:52,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:52,663 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:52,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:52,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:52,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:52,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:52,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:52,664 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:52,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:52,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:52,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:52,665 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:52,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:52,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:52,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:52,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:52,666 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:52,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:52,667 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:52,667 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:52,695 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:52,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:52,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:52,719 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:52,719 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:52,720 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product30.cil.c [2019-09-20 13:30:52,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9121acfcc/f3d597e91f01410596a02bd3efbfa5e6/FLAG80c3bf4a1 [2019-09-20 13:30:53,286 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:53,287 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product30.cil.c [2019-09-20 13:30:53,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9121acfcc/f3d597e91f01410596a02bd3efbfa5e6/FLAG80c3bf4a1 [2019-09-20 13:30:53,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9121acfcc/f3d597e91f01410596a02bd3efbfa5e6 [2019-09-20 13:30:53,615 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:53,617 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:53,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:53,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:53,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:53,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:53" (1/1) ... [2019-09-20 13:30:53,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3205cab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:53, skipping insertion in model container [2019-09-20 13:30:53,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:53" (1/1) ... [2019-09-20 13:30:53,633 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:53,686 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:54,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:54,121 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:54,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:54,306 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:54,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:54 WrapperNode [2019-09-20 13:30:54,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:54,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:54,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:54,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:54,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:54" (1/1) ... [2019-09-20 13:30:54,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:54" (1/1) ... [2019-09-20 13:30:54,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:54" (1/1) ... [2019-09-20 13:30:54,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:54" (1/1) ... [2019-09-20 13:30:54,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:54" (1/1) ... [2019-09-20 13:30:54,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:54" (1/1) ... [2019-09-20 13:30:54,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:54" (1/1) ... [2019-09-20 13:30:54,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:54,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:54,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:54,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:54,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:54" (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 13:30:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:30:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:54,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:30:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:55,606 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:55,607 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:55,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:55 BoogieIcfgContainer [2019-09-20 13:30:55,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:55,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:55,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:55,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:55,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:53" (1/3) ... [2019-09-20 13:30:55,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53af5c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:55, skipping insertion in model container [2019-09-20 13:30:55,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:54" (2/3) ... [2019-09-20 13:30:55,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53af5c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:55, skipping insertion in model container [2019-09-20 13:30:55,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:55" (3/3) ... [2019-09-20 13:30:55,618 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product30.cil.c [2019-09-20 13:30:55,628 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:55,637 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:55,655 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:55,684 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:55,685 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:55,685 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:55,685 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:55,686 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:55,686 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:55,686 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:55,686 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:55,708 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2019-09-20 13:30:55,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:30:55,721 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:55,723 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] [2019-09-20 13:30:55,725 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:55,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:55,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1185825638, now seen corresponding path program 1 times [2019-09-20 13:30:55,734 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:55,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:55,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:55,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:55,796 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:56,100 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 13:30:56,103 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:56,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:56,104 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:56,110 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:56,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:56,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:56,130 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 2 states. [2019-09-20 13:30:56,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:56,180 INFO L93 Difference]: Finished difference Result 137 states and 159 transitions. [2019-09-20 13:30:56,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:56,182 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:30:56,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:56,209 INFO L225 Difference]: With dead ends: 137 [2019-09-20 13:30:56,210 INFO L226 Difference]: Without dead ends: 126 [2019-09-20 13:30:56,211 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 13:30:56,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-09-20 13:30:56,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-09-20 13:30:56,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-09-20 13:30:56,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2019-09-20 13:30:56,258 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 46 [2019-09-20 13:30:56,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:56,258 INFO L475 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2019-09-20 13:30:56,258 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:56,259 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2019-09-20 13:30:56,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:30:56,262 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:56,262 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] [2019-09-20 13:30:56,262 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:56,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:56,263 INFO L82 PathProgramCache]: Analyzing trace with hash 64634253, now seen corresponding path program 1 times [2019-09-20 13:30:56,263 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:56,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:56,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:56,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:56,266 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:56,370 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 13:30:56,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:56,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:56,371 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:56,373 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:56,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:56,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:56,373 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 3 states. [2019-09-20 13:30:56,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:56,402 INFO L93 Difference]: Finished difference Result 117 states and 135 transitions. [2019-09-20 13:30:56,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:56,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:30:56,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:56,408 INFO L225 Difference]: With dead ends: 117 [2019-09-20 13:30:56,408 INFO L226 Difference]: Without dead ends: 117 [2019-09-20 13:30:56,409 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 13:30:56,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-09-20 13:30:56,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2019-09-20 13:30:56,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-09-20 13:30:56,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2019-09-20 13:30:56,432 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 47 [2019-09-20 13:30:56,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:56,432 INFO L475 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2019-09-20 13:30:56,432 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:56,432 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2019-09-20 13:30:56,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:56,435 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:56,435 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 13:30:56,435 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:56,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:56,436 INFO L82 PathProgramCache]: Analyzing trace with hash -974818796, now seen corresponding path program 1 times [2019-09-20 13:30:56,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:56,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:56,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:56,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:56,442 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:56,683 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 13:30:56,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:56,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:56,684 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:56,684 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:56,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:56,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:56,687 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand 7 states. [2019-09-20 13:30:57,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:57,030 INFO L93 Difference]: Finished difference Result 117 states and 134 transitions. [2019-09-20 13:30:57,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:57,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:30:57,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:57,034 INFO L225 Difference]: With dead ends: 117 [2019-09-20 13:30:57,034 INFO L226 Difference]: Without dead ends: 117 [2019-09-20 13:30:57,035 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 13:30:57,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-09-20 13:30:57,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2019-09-20 13:30:57,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-09-20 13:30:57,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 134 transitions. [2019-09-20 13:30:57,055 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 134 transitions. Word has length 52 [2019-09-20 13:30:57,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:57,056 INFO L475 AbstractCegarLoop]: Abstraction has 117 states and 134 transitions. [2019-09-20 13:30:57,056 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:57,056 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 134 transitions. [2019-09-20 13:30:57,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:30:57,064 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:57,064 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] [2019-09-20 13:30:57,068 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:57,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:57,068 INFO L82 PathProgramCache]: Analyzing trace with hash 2068919848, now seen corresponding path program 1 times [2019-09-20 13:30:57,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:57,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:57,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:57,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:57,073 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:57,338 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 13:30:57,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:57,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:30:57,339 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:57,340 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:30:57,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:30:57,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:57,340 INFO L87 Difference]: Start difference. First operand 117 states and 134 transitions. Second operand 10 states. [2019-09-20 13:30:57,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:57,990 INFO L93 Difference]: Finished difference Result 283 states and 337 transitions. [2019-09-20 13:30:57,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:30:57,993 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2019-09-20 13:30:57,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:58,004 INFO L225 Difference]: With dead ends: 283 [2019-09-20 13:30:58,005 INFO L226 Difference]: Without dead ends: 283 [2019-09-20 13:30:58,007 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-20 13:30:58,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2019-09-20 13:30:58,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 279. [2019-09-20 13:30:58,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2019-09-20 13:30:58,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 330 transitions. [2019-09-20 13:30:58,067 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 330 transitions. Word has length 65 [2019-09-20 13:30:58,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:58,069 INFO L475 AbstractCegarLoop]: Abstraction has 279 states and 330 transitions. [2019-09-20 13:30:58,069 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:30:58,069 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 330 transitions. [2019-09-20 13:30:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-20 13:30:58,077 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:58,077 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] [2019-09-20 13:30:58,077 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:58,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:58,078 INFO L82 PathProgramCache]: Analyzing trace with hash 425688904, now seen corresponding path program 1 times [2019-09-20 13:30:58,078 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:58,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:58,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:58,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:58,085 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:58,172 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 13:30:58,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:58,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:58,173 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:58,174 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:58,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:58,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:58,174 INFO L87 Difference]: Start difference. First operand 279 states and 330 transitions. Second operand 3 states. [2019-09-20 13:30:58,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:58,185 INFO L93 Difference]: Finished difference Result 176 states and 194 transitions. [2019-09-20 13:30:58,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:58,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2019-09-20 13:30:58,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:58,188 INFO L225 Difference]: With dead ends: 176 [2019-09-20 13:30:58,188 INFO L226 Difference]: Without dead ends: 176 [2019-09-20 13:30:58,189 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 13:30:58,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2019-09-20 13:30:58,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2019-09-20 13:30:58,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2019-09-20 13:30:58,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 194 transitions. [2019-09-20 13:30:58,206 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 194 transitions. Word has length 73 [2019-09-20 13:30:58,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:58,206 INFO L475 AbstractCegarLoop]: Abstraction has 176 states and 194 transitions. [2019-09-20 13:30:58,206 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:58,207 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 194 transitions. [2019-09-20 13:30:58,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-20 13:30:58,209 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:58,211 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-20 13:30:58,212 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:58,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:58,212 INFO L82 PathProgramCache]: Analyzing trace with hash 490046148, now seen corresponding path program 1 times [2019-09-20 13:30:58,212 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:58,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:58,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:58,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:58,215 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:58,382 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-09-20 13:30:58,382 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:30:58,382 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:30:58,384 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 111 with the following transitions: [2019-09-20 13:30:58,388 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [113], [129], [144], [147], [148], [149], [158], [162], [166], [169], [174], [180], [182], [188], [193], [225], [226], [234], [238], [244], [282], [286], [287], [290], [291], [306], [309], [310], [311], [404], [405], [415], [423], [424], [425], [426], [427], [429], [430], [431], [432], [433], [434], [435], [436], [437], [477], [478], [479], [480], [485], [486], [495], [496], [497], [498], [509], [510], [513], [521], [522], [523] [2019-09-20 13:30:58,440 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:30:58,441 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:30:58,539 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:30:58,541 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-20 13:30:58,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:58,547 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:30:58,596 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:30:58,596 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:30:58,600 INFO L420 sIntCurrentIteration]: We unified 109 AI predicates to 109 [2019-09-20 13:30:58,600 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:30:58,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:30:58,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-20 13:30:58,602 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:58,602 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:58,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:58,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:58,603 INFO L87 Difference]: Start difference. First operand 176 states and 194 transitions. Second operand 2 states. [2019-09-20 13:30:58,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:58,604 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:30:58,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:58,604 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 110 [2019-09-20 13:30:58,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:58,605 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:30:58,605 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:58,605 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 109 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 13:30:58,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:58,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:58,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:58,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:58,606 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2019-09-20 13:30:58,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:58,607 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:58,607 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:58,607 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:58,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:58,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:58 BoogieIcfgContainer [2019-09-20 13:30:58,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:58,615 INFO L168 Benchmark]: Toolchain (without parser) took 4997.54 ms. Allocated memory was 132.1 MB in the beginning and 263.7 MB in the end (delta: 131.6 MB). Free memory was 87.1 MB in the beginning and 87.0 MB in the end (delta: 73.1 kB). Peak memory consumption was 131.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:58,616 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:58,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.50 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 86.6 MB in the beginning and 164.7 MB in the end (delta: -78.1 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:58,618 INFO L168 Benchmark]: Boogie Preprocessor took 107.18 ms. Allocated memory is still 199.8 MB. Free memory was 164.7 MB in the beginning and 160.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:58,619 INFO L168 Benchmark]: RCFGBuilder took 1193.48 ms. Allocated memory was 199.8 MB in the beginning and 222.3 MB in the end (delta: 22.5 MB). Free memory was 160.8 MB in the beginning and 193.3 MB in the end (delta: -32.4 MB). Peak memory consumption was 92.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:58,620 INFO L168 Benchmark]: TraceAbstraction took 3002.89 ms. Allocated memory was 222.3 MB in the beginning and 263.7 MB in the end (delta: 41.4 MB). Free memory was 193.3 MB in the beginning and 87.0 MB in the end (delta: 106.3 MB). Peak memory consumption was 147.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:58,625 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 689.50 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 86.6 MB in the beginning and 164.7 MB in the end (delta: -78.1 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.18 ms. Allocated memory is still 199.8 MB. Free memory was 164.7 MB in the beginning and 160.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1193.48 ms. Allocated memory was 199.8 MB in the beginning and 222.3 MB in the end (delta: 22.5 MB). Free memory was 160.8 MB in the beginning and 193.3 MB in the end (delta: -32.4 MB). Peak memory consumption was 92.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3002.89 ms. Allocated memory was 222.3 MB in the beginning and 263.7 MB in the end (delta: 41.4 MB). Free memory was 193.3 MB in the beginning and 87.0 MB in the end (delta: 106.3 MB). Peak memory consumption was 147.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 944]: 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 40 procedures, 235 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 671 SDtfs, 455 SDslu, 1361 SDs, 0 SdLazy, 451 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred in iteration=4, 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, 0.8990825688073395 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 393 NumberOfCodeBlocks, 393 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 387 ConstructedInterpolants, 0 QuantifiedInterpolants, 57277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 33/37 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...