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_spec1_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:53,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:53,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:53,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:53,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:53,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:53,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:53,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:53,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:53,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:53,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:53,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:53,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:53,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:53,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:53,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:53,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:53,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:53,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:53,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:53,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:53,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:53,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:53,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:53,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:53,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:53,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:53,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:53,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:53,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:53,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:53,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:53,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:53,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:53,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:53,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:53,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:53,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:53,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:53,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:53,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:53,865 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 [2019-09-16 17:07:53,880 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:53,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:53,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:53,881 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:53,882 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:53,882 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:53,882 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:53,882 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:53,883 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:53,883 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:53,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:53,884 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:53,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:53,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:53,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:53,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:53,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:53,885 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:53,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:53,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:53,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:53,886 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:53,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:53,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:53,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:53,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:53,887 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:53,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:53,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:53,887 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:53,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:53,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:53,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:53,933 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:53,934 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:53,934 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product30.cil.c [2019-09-16 17:07:53,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b89b6262e/2f77aa654bda4583979ef72c1b9fd179/FLAGc258eea70 [2019-09-16 17:07:54,503 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:54,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product30.cil.c [2019-09-16 17:07:54,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b89b6262e/2f77aa654bda4583979ef72c1b9fd179/FLAGc258eea70 [2019-09-16 17:07:54,806 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b89b6262e/2f77aa654bda4583979ef72c1b9fd179 [2019-09-16 17:07:54,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:54,817 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:54,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:54,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:54,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:54,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:54" (1/1) ... [2019-09-16 17:07:54,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b78263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:54, skipping insertion in model container [2019-09-16 17:07:54,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:54" (1/1) ... [2019-09-16 17:07:54,834 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:54,893 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:55,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:55,419 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:55,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:55,575 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:55,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:55 WrapperNode [2019-09-16 17:07:55,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:55,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:55,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:55,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:55,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:55" (1/1) ... [2019-09-16 17:07:55,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:55" (1/1) ... [2019-09-16 17:07:55,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:55" (1/1) ... [2019-09-16 17:07:55,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:55" (1/1) ... [2019-09-16 17:07:55,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:55" (1/1) ... [2019-09-16 17:07:55,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:55" (1/1) ... [2019-09-16 17:07:55,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:55" (1/1) ... [2019-09-16 17:07:55,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:55,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:55,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:55,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:55,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:55" (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 [2019-09-16 17:07:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:07:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:07:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:07:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:07:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:07:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:07:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:07:55,761 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:07:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:07:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:07:55,762 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:07:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:07:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:07:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:07:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:07:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:07:55,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:07:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:07:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:07:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:07:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:07:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:07:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:07:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:07:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:07:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:07:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:07:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:07:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:07:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:07:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:07:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:07:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:07:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:07:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:07:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:07:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:07:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:07:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:07:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:07:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:07:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:07:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:07:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:07:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:07:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:07:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:07:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:07:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:07:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:07:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:07:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:07:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:07:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:07:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:07:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:07:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:07:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:07:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:07:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:07:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:07:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:07:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:07:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:07:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:07:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:07:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:07:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:56,858 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:56,858 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:07:56,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:56 BoogieIcfgContainer [2019-09-16 17:07:56,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:56,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:56,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:56,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:56,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:54" (1/3) ... [2019-09-16 17:07:56,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359c0dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:56, skipping insertion in model container [2019-09-16 17:07:56,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:55" (2/3) ... [2019-09-16 17:07:56,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359c0dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:56, skipping insertion in model container [2019-09-16 17:07:56,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:56" (3/3) ... [2019-09-16 17:07:56,869 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product30.cil.c [2019-09-16 17:07:56,880 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:56,893 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:56,911 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:56,956 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:56,956 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:56,956 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:56,956 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:56,957 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:56,957 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:56,957 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:56,957 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:56,978 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2019-09-16 17:07:56,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:07:56,993 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:56,994 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] [2019-09-16 17:07:56,997 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:57,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:57,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1593609150, now seen corresponding path program 1 times [2019-09-16 17:07:57,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:57,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:57,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:57,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:57,070 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:57,387 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:57,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:57,388 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:57,395 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:57,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:57,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:57,414 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 2 states. [2019-09-16 17:07:57,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:57,445 INFO L93 Difference]: Finished difference Result 134 states and 157 transitions. [2019-09-16 17:07:57,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:57,447 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:07:57,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:57,462 INFO L225 Difference]: With dead ends: 134 [2019-09-16 17:07:57,462 INFO L226 Difference]: Without dead ends: 123 [2019-09-16 17:07:57,467 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 [2019-09-16 17:07:57,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-16 17:07:57,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-09-16 17:07:57,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-16 17:07:57,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2019-09-16 17:07:57,563 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 46 [2019-09-16 17:07:57,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:57,563 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2019-09-16 17:07:57,564 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:57,564 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2019-09-16 17:07:57,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:07:57,571 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:57,571 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] [2019-09-16 17:07:57,572 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:57,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:57,574 INFO L82 PathProgramCache]: Analyzing trace with hash 18022412, now seen corresponding path program 1 times [2019-09-16 17:07:57,574 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:57,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:57,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:57,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:57,579 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:57,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:57,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:57,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:07:57,751 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:57,754 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:07:57,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:07:57,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:57,755 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand 3 states. [2019-09-16 17:07:57,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:57,784 INFO L93 Difference]: Finished difference Result 114 states and 133 transitions. [2019-09-16 17:07:57,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:07:57,784 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:07:57,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:57,790 INFO L225 Difference]: With dead ends: 114 [2019-09-16 17:07:57,790 INFO L226 Difference]: Without dead ends: 114 [2019-09-16 17:07:57,791 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 [2019-09-16 17:07:57,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-16 17:07:57,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-16 17:07:57,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-16 17:07:57,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2019-09-16 17:07:57,812 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 47 [2019-09-16 17:07:57,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:57,812 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2019-09-16 17:07:57,812 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:07:57,813 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2019-09-16 17:07:57,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:07:57,819 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:57,819 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] [2019-09-16 17:07:57,819 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:57,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:57,820 INFO L82 PathProgramCache]: Analyzing trace with hash 20251595, now seen corresponding path program 1 times [2019-09-16 17:07:57,820 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:57,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:57,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:57,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:57,823 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:57,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:57,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:57,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:07:57,990 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:57,990 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:07:57,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:07:57,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:07:57,991 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 7 states. [2019-09-16 17:07:58,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:58,374 INFO L93 Difference]: Finished difference Result 114 states and 132 transitions. [2019-09-16 17:07:58,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:07:58,375 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:07:58,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:58,377 INFO L225 Difference]: With dead ends: 114 [2019-09-16 17:07:58,377 INFO L226 Difference]: Without dead ends: 114 [2019-09-16 17:07:58,378 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 [2019-09-16 17:07:58,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-16 17:07:58,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-16 17:07:58,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-16 17:07:58,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2019-09-16 17:07:58,387 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 52 [2019-09-16 17:07:58,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:58,387 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2019-09-16 17:07:58,388 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:07:58,388 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2019-09-16 17:07:58,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-16 17:07:58,389 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:58,390 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] [2019-09-16 17:07:58,390 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:58,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:58,390 INFO L82 PathProgramCache]: Analyzing trace with hash -616674480, now seen corresponding path program 1 times [2019-09-16 17:07:58,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:58,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:58,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:58,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:58,394 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:58,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:58,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:58,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:07:58,500 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:58,501 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:07:58,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:07:58,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:07:58,502 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 6 states. [2019-09-16 17:07:58,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:58,761 INFO L93 Difference]: Finished difference Result 197 states and 232 transitions. [2019-09-16 17:07:58,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:07:58,762 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-09-16 17:07:58,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:58,765 INFO L225 Difference]: With dead ends: 197 [2019-09-16 17:07:58,766 INFO L226 Difference]: Without dead ends: 197 [2019-09-16 17:07:58,766 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:07:58,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-09-16 17:07:58,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 195. [2019-09-16 17:07:58,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-09-16 17:07:58,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 230 transitions. [2019-09-16 17:07:58,798 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 230 transitions. Word has length 65 [2019-09-16 17:07:58,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:58,800 INFO L475 AbstractCegarLoop]: Abstraction has 195 states and 230 transitions. [2019-09-16 17:07:58,800 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:07:58,800 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 230 transitions. [2019-09-16 17:07:58,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-16 17:07:58,808 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:58,808 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] [2019-09-16 17:07:58,808 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:58,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:58,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1717988948, now seen corresponding path program 1 times [2019-09-16 17:07:58,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:58,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:58,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:58,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:58,815 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:58,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:58,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:07:58,958 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:58,959 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:07:58,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:07:58,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:07:58,961 INFO L87 Difference]: Start difference. First operand 195 states and 230 transitions. Second operand 7 states. [2019-09-16 17:07:59,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:59,329 INFO L93 Difference]: Finished difference Result 130 states and 143 transitions. [2019-09-16 17:07:59,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:07:59,330 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2019-09-16 17:07:59,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:59,331 INFO L225 Difference]: With dead ends: 130 [2019-09-16 17:07:59,331 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:07:59,332 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-16 17:07:59,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:07:59,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:07:59,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:07:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:07:59,333 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2019-09-16 17:07:59,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:59,333 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:07:59,334 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:07:59,334 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:07:59,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:07:59,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:07:59 BoogieIcfgContainer [2019-09-16 17:07:59,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:07:59,343 INFO L168 Benchmark]: Toolchain (without parser) took 4524.77 ms. Allocated memory was 136.8 MB in the beginning and 273.2 MB in the end (delta: 136.3 MB). Free memory was 83.5 MB in the beginning and 158.3 MB in the end (delta: -74.8 MB). Peak memory consumption was 61.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:59,344 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 102.7 MB in the beginning and 102.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:07:59,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.95 ms. Allocated memory was 136.8 MB in the beginning and 197.7 MB in the end (delta: 60.8 MB). Free memory was 83.2 MB in the beginning and 163.2 MB in the end (delta: -79.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:59,347 INFO L168 Benchmark]: Boogie Preprocessor took 103.94 ms. Allocated memory is still 197.7 MB. Free memory was 163.2 MB in the beginning and 159.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:59,348 INFO L168 Benchmark]: RCFGBuilder took 1179.04 ms. Allocated memory is still 197.7 MB. Free memory was 159.2 MB in the beginning and 73.6 MB in the end (delta: 85.6 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:59,349 INFO L168 Benchmark]: TraceAbstraction took 2478.83 ms. Allocated memory was 197.7 MB in the beginning and 273.2 MB in the end (delta: 75.5 MB). Free memory was 73.0 MB in the beginning and 158.3 MB in the end (delta: -85.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:07:59,353 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 102.7 MB in the beginning and 102.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 757.95 ms. Allocated memory was 136.8 MB in the beginning and 197.7 MB in the end (delta: 60.8 MB). Free memory was 83.2 MB in the beginning and 163.2 MB in the end (delta: -79.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.94 ms. Allocated memory is still 197.7 MB. Free memory was 163.2 MB in the beginning and 159.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1179.04 ms. Allocated memory is still 197.7 MB. Free memory was 159.2 MB in the beginning and 73.6 MB in the end (delta: 85.6 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2478.83 ms. Allocated memory was 197.7 MB in the beginning and 273.2 MB in the end (delta: 75.5 MB). Free memory was 73.0 MB in the beginning and 158.3 MB in the end (delta: -85.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 643]: 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, 2.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 631 SDtfs, 364 SDslu, 997 SDs, 0 SdLazy, 359 SolverSat, 111 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 279 NumberOfCodeBlocks, 279 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 274 ConstructedInterpolants, 0 QuantifiedInterpolants, 29832 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...