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_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:48:21,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:48:21,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:48:21,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:48:21,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:48:21,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:48:21,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:48:21,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:48:21,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:48:21,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:48:21,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:48:21,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:48:21,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:48:21,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:48:21,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:48:21,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:48:21,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:48:21,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:48:21,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:48:21,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:48:21,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:48:21,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:48:21,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:48:21,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:48:21,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:48:21,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:48:21,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:48:21,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:48:21,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:48:21,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:48:21,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:48:21,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:48:21,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:48:21,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:48:21,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:48:21,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:48:21,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:48:21,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:48:21,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:48:21,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:48:21,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:48:21,695 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 02:48:21,722 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:48:21,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:48:21,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:48:21,723 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:48:21,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:48:21,724 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:48:21,725 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:48:21,725 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:48:21,725 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:48:21,725 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:48:21,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:48:21,727 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:48:21,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:48:21,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:48:21,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:48:21,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:48:21,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:48:21,729 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:48:21,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:48:21,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:48:21,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:48:21,730 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:48:21,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:48:21,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:21,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:48:21,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:48:21,731 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:48:21,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:48:21,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:48:21,732 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:48:21,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:48:21,788 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:48:21,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:48:21,797 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:48:21,797 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:48:21,799 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product07.cil.c [2019-09-10 02:48:21,878 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed55ad866/3812536b1c9741a2b5bd12b9b2a456f3/FLAG0bdbd0dc7 [2019-09-10 02:48:22,455 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:48:22,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product07.cil.c [2019-09-10 02:48:22,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed55ad866/3812536b1c9741a2b5bd12b9b2a456f3/FLAG0bdbd0dc7 [2019-09-10 02:48:22,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed55ad866/3812536b1c9741a2b5bd12b9b2a456f3 [2019-09-10 02:48:22,834 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:48:22,836 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:48:22,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:22,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:48:22,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:48:22,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:22" (1/1) ... [2019-09-10 02:48:22,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1229dd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:22, skipping insertion in model container [2019-09-10 02:48:22,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:22" (1/1) ... [2019-09-10 02:48:22,855 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:48:22,920 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:48:23,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:23,325 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:48:23,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:23,448 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:48:23,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:23 WrapperNode [2019-09-10 02:48:23,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:23,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:48:23,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:48:23,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:48:23,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:23" (1/1) ... [2019-09-10 02:48:23,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:23" (1/1) ... [2019-09-10 02:48:23,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:23" (1/1) ... [2019-09-10 02:48:23,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:23" (1/1) ... [2019-09-10 02:48:23,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:23" (1/1) ... [2019-09-10 02:48:23,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:23" (1/1) ... [2019-09-10 02:48:23,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:23" (1/1) ... [2019-09-10 02:48:23,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:48:23,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:48:23,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:48:23,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:48:23,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:23" (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 02:48:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:48:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:48:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:48:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:48:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:48:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:48:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:48:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:48:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:48:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:48:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:48:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:48:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:48:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:48:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:48:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:48:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:48:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:48:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:48:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:48:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:48:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:48:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:48:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:48:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:48:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:48:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:48:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:48:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:48:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:48:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:48:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:48:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:48:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:48:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:48:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:48:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:48:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:48:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:48:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:48:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:48:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:48:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:48:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:48:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:48:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:48:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:48:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:48:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:48:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:48:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:48:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:48:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:48:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:48:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:48:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:48:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:48:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:48:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:48:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:48:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:48:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:48:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:48:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:48:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:48:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:48:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:48:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:48:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:48:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:48:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:48:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:48:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:48:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:48:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:48:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:48:24,747 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:48:24,747 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:48:24,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:24 BoogieIcfgContainer [2019-09-10 02:48:24,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:48:24,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:48:24,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:48:24,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:48:24,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:48:22" (1/3) ... [2019-09-10 02:48:24,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c49ff9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:24, skipping insertion in model container [2019-09-10 02:48:24,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:23" (2/3) ... [2019-09-10 02:48:24,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c49ff9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:24, skipping insertion in model container [2019-09-10 02:48:24,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:24" (3/3) ... [2019-09-10 02:48:24,758 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product07.cil.c [2019-09-10 02:48:24,769 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:48:24,780 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:48:24,798 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:48:24,820 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:48:24,821 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:48:24,821 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:48:24,821 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:48:24,821 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:48:24,821 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:48:24,822 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:48:24,822 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:48:24,852 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2019-09-10 02:48:24,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:48:24,865 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:24,866 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 02:48:24,868 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:24,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1126769430, now seen corresponding path program 1 times [2019-09-10 02:48:24,875 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:24,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:24,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:24,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:24,932 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:25,234 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 02:48:25,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:25,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:48:25,237 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:25,242 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:25,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:25,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:25,261 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 2 states. [2019-09-10 02:48:25,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:25,288 INFO L93 Difference]: Finished difference Result 121 states and 142 transitions. [2019-09-10 02:48:25,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:25,290 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-10 02:48:25,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:25,301 INFO L225 Difference]: With dead ends: 121 [2019-09-10 02:48:25,301 INFO L226 Difference]: Without dead ends: 110 [2019-09-10 02:48:25,303 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 02:48:25,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-09-10 02:48:25,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-09-10 02:48:25,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-09-10 02:48:25,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 130 transitions. [2019-09-10 02:48:25,355 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 130 transitions. Word has length 51 [2019-09-10 02:48:25,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:25,356 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 130 transitions. [2019-09-10 02:48:25,356 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:25,356 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 130 transitions. [2019-09-10 02:48:25,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:48:25,360 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:25,360 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 02:48:25,361 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:25,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:25,361 INFO L82 PathProgramCache]: Analyzing trace with hash 305293600, now seen corresponding path program 1 times [2019-09-10 02:48:25,361 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:25,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:25,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:25,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:25,363 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:25,470 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 02:48:25,470 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:25,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:48:25,471 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:25,472 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:48:25,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:48:25,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:25,473 INFO L87 Difference]: Start difference. First operand 110 states and 130 transitions. Second operand 3 states. [2019-09-10 02:48:25,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:25,488 INFO L93 Difference]: Finished difference Result 101 states and 118 transitions. [2019-09-10 02:48:25,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:48:25,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-10 02:48:25,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:25,492 INFO L225 Difference]: With dead ends: 101 [2019-09-10 02:48:25,492 INFO L226 Difference]: Without dead ends: 101 [2019-09-10 02:48:25,493 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 02:48:25,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-09-10 02:48:25,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-09-10 02:48:25,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-09-10 02:48:25,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2019-09-10 02:48:25,506 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 118 transitions. Word has length 52 [2019-09-10 02:48:25,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:25,506 INFO L475 AbstractCegarLoop]: Abstraction has 101 states and 118 transitions. [2019-09-10 02:48:25,506 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:48:25,506 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 118 transitions. [2019-09-10 02:48:25,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 02:48:25,509 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:25,509 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] [2019-09-10 02:48:25,509 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:25,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:25,510 INFO L82 PathProgramCache]: Analyzing trace with hash -13017803, now seen corresponding path program 1 times [2019-09-10 02:48:25,510 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:25,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:25,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:25,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:25,512 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:25,676 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 02:48:25,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:25,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:25,677 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:25,678 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:25,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:25,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:25,679 INFO L87 Difference]: Start difference. First operand 101 states and 118 transitions. Second operand 7 states. [2019-09-10 02:48:26,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:26,097 INFO L93 Difference]: Finished difference Result 225 states and 272 transitions. [2019-09-10 02:48:26,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:48:26,098 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-10 02:48:26,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:26,103 INFO L225 Difference]: With dead ends: 225 [2019-09-10 02:48:26,103 INFO L226 Difference]: Without dead ends: 225 [2019-09-10 02:48:26,103 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 02:48:26,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2019-09-10 02:48:26,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 217. [2019-09-10 02:48:26,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-09-10 02:48:26,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 266 transitions. [2019-09-10 02:48:26,151 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 266 transitions. Word has length 56 [2019-09-10 02:48:26,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:26,152 INFO L475 AbstractCegarLoop]: Abstraction has 217 states and 266 transitions. [2019-09-10 02:48:26,152 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:26,152 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 266 transitions. [2019-09-10 02:48:26,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-10 02:48:26,160 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:26,160 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:26,161 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:26,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:26,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1884102266, now seen corresponding path program 1 times [2019-09-10 02:48:26,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:26,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:26,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:26,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:26,167 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:26,379 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 02:48:26,379 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:26,380 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:26,380 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:26,382 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:26,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:26,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:26,382 INFO L87 Difference]: Start difference. First operand 217 states and 266 transitions. Second operand 6 states. [2019-09-10 02:48:26,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:26,590 INFO L93 Difference]: Finished difference Result 388 states and 478 transitions. [2019-09-10 02:48:26,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:26,593 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-10 02:48:26,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:26,597 INFO L225 Difference]: With dead ends: 388 [2019-09-10 02:48:26,598 INFO L226 Difference]: Without dead ends: 388 [2019-09-10 02:48:26,599 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 02:48:26,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2019-09-10 02:48:26,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 382. [2019-09-10 02:48:26,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2019-09-10 02:48:26,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 472 transitions. [2019-09-10 02:48:26,664 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 472 transitions. Word has length 62 [2019-09-10 02:48:26,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:26,665 INFO L475 AbstractCegarLoop]: Abstraction has 382 states and 472 transitions. [2019-09-10 02:48:26,665 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:26,665 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 472 transitions. [2019-09-10 02:48:26,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-10 02:48:26,668 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:26,669 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:26,669 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:26,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:26,670 INFO L82 PathProgramCache]: Analyzing trace with hash -2089210538, now seen corresponding path program 1 times [2019-09-10 02:48:26,674 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:26,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:26,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:26,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:26,682 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:26,792 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 02:48:26,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:26,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:26,793 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:26,795 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:26,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:26,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:26,796 INFO L87 Difference]: Start difference. First operand 382 states and 472 transitions. Second operand 6 states. [2019-09-10 02:48:26,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:26,981 INFO L93 Difference]: Finished difference Result 294 states and 341 transitions. [2019-09-10 02:48:26,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:48:26,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2019-09-10 02:48:26,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:26,984 INFO L225 Difference]: With dead ends: 294 [2019-09-10 02:48:26,984 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:48:26,985 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 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 02:48:26,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:48:26,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:48:26,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:48:26,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:48:26,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2019-09-10 02:48:26,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:26,986 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:48:26,986 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:26,987 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:48:26,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:48:26,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:48:26 BoogieIcfgContainer [2019-09-10 02:48:26,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:48:26,997 INFO L168 Benchmark]: Toolchain (without parser) took 4159.64 ms. Allocated memory was 134.2 MB in the beginning and 257.9 MB in the end (delta: 123.7 MB). Free memory was 88.2 MB in the beginning and 154.2 MB in the end (delta: -66.1 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:26,998 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory is still 107.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:48:26,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.32 ms. Allocated memory was 134.2 MB in the beginning and 200.3 MB in the end (delta: 66.1 MB). Free memory was 87.7 MB in the beginning and 166.3 MB in the end (delta: -78.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:27,001 INFO L168 Benchmark]: Boogie Preprocessor took 102.18 ms. Allocated memory is still 200.3 MB. Free memory was 166.3 MB in the beginning and 162.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:27,002 INFO L168 Benchmark]: RCFGBuilder took 1196.82 ms. Allocated memory was 200.3 MB in the beginning and 227.5 MB in the end (delta: 27.3 MB). Free memory was 162.0 MB in the beginning and 198.4 MB in the end (delta: -36.5 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:27,005 INFO L168 Benchmark]: TraceAbstraction took 2243.57 ms. Allocated memory was 227.5 MB in the beginning and 257.9 MB in the end (delta: 30.4 MB). Free memory was 198.4 MB in the beginning and 154.2 MB in the end (delta: 44.2 MB). Peak memory consumption was 74.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:27,014 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory is still 107.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 612.32 ms. Allocated memory was 134.2 MB in the beginning and 200.3 MB in the end (delta: 66.1 MB). Free memory was 87.7 MB in the beginning and 166.3 MB in the end (delta: -78.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.18 ms. Allocated memory is still 200.3 MB. Free memory was 166.3 MB in the beginning and 162.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1196.82 ms. Allocated memory was 200.3 MB in the beginning and 227.5 MB in the end (delta: 27.3 MB). Free memory was 162.0 MB in the beginning and 198.4 MB in the end (delta: -36.5 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2243.57 ms. Allocated memory was 227.5 MB in the beginning and 257.9 MB in the end (delta: 30.4 MB). Free memory was 198.4 MB in the beginning and 154.2 MB in the end (delta: 44.2 MB). Peak memory consumption was 74.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 391]: 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 37 procedures, 215 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 628 SDtfs, 338 SDslu, 1268 SDs, 0 SdLazy, 296 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 287 NumberOfCodeBlocks, 287 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 26354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...