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_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:48:20,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:48:20,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:48:20,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:48:20,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:48:20,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:48:20,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:48:20,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:48:20,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:48:20,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:48:20,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:48:20,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:48:20,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:48:20,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:48:20,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:48:20,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:48:20,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:48:20,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:48:20,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:48:20,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:48:20,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:48:20,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:48:20,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:48:20,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:48:20,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:48:20,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:48:20,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:48:20,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:48:20,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:48:20,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:48:20,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:48:20,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:48:20,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:48:20,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:48:20,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:48:20,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:48:20,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:48:20,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:48:20,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:48:20,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:48:20,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:48:20,856 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 02:48:20,882 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:48:20,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:48:20,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:48:20,884 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:48:20,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:48:20,885 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:48:20,885 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:48:20,885 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:48:20,886 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:48:20,886 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:48:20,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:48:20,888 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:48:20,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:48:20,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:48:20,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:48:20,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:48:20,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:48:20,890 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:48:20,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:48:20,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:48:20,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:48:20,891 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:48:20,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:48:20,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:20,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:48:20,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:48:20,892 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:48:20,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:48:20,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:48:20,892 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:48:20,930 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:48:20,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:48:20,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:48:20,948 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:48:20,948 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:48:20,949 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product05.cil.c [2019-09-10 02:48:21,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a5c46354/06ae642d823740f8a3d7865b5a862c80/FLAG88d3d51b3 [2019-09-10 02:48:21,556 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:48:21,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product05.cil.c [2019-09-10 02:48:21,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a5c46354/06ae642d823740f8a3d7865b5a862c80/FLAG88d3d51b3 [2019-09-10 02:48:21,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a5c46354/06ae642d823740f8a3d7865b5a862c80 [2019-09-10 02:48:21,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:48:21,853 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:48:21,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:21,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:48:21,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:48:21,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:21" (1/1) ... [2019-09-10 02:48:21,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d772ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:21, skipping insertion in model container [2019-09-10 02:48:21,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:21" (1/1) ... [2019-09-10 02:48:21,868 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:48:21,929 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:48:22,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:22,387 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:48:22,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:22,539 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:48:22,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:22 WrapperNode [2019-09-10 02:48:22,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:22,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:48:22,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:48:22,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:48:22,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:22" (1/1) ... [2019-09-10 02:48:22,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:22" (1/1) ... [2019-09-10 02:48:22,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:22" (1/1) ... [2019-09-10 02:48:22,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:22" (1/1) ... [2019-09-10 02:48:22,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:22" (1/1) ... [2019-09-10 02:48:22,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:22" (1/1) ... [2019-09-10 02:48:22,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:22" (1/1) ... [2019-09-10 02:48:22,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:48:22,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:48:22,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:48:22,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:48:22,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:22" (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 02:48:22,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:48:22,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:48:22,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:22,690 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:48:22,691 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:48:22,691 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:48:22,691 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:48:22,691 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:48:22,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:22,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:22,692 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:48:22,692 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:48:22,692 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:48:22,693 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:48:22,693 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:48:22,693 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:48:22,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:48:22,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:48:22,694 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:48:22,694 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:48:22,694 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:48:22,694 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:48:22,694 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:48:22,695 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:48:22,695 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:48:22,695 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:48:22,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:48:22,695 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:48:22,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:48:22,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:48:22,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:22,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:22,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:22,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:48:22,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:48:22,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:48:22,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:48:22,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:48:22,697 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:48:22,697 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:48:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:48:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:48:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:48:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:48:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:48:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:48:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:48:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:48:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:48:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:48:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:48:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:48:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:48:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:48:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:48:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:48:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:48:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:48:22,701 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:48:22,701 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:48:22,701 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:48:22,701 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:48:22,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:48:22,701 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:48:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:48:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:48:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:48:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:48:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:48:22,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:48:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:48:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:48:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:48:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:22,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:48:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:48:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:48:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:48:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:48:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:48:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:48:23,761 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:48:23,762 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:48:23,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:23 BoogieIcfgContainer [2019-09-10 02:48:23,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:48:23,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:48:23,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:48:23,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:48:23,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:48:21" (1/3) ... [2019-09-10 02:48:23,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634a40af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:23, skipping insertion in model container [2019-09-10 02:48:23,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:22" (2/3) ... [2019-09-10 02:48:23,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634a40af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:23, skipping insertion in model container [2019-09-10 02:48:23,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:23" (3/3) ... [2019-09-10 02:48:23,771 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product05.cil.c [2019-09-10 02:48:23,781 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:48:23,789 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:48:23,806 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:48:23,833 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:48:23,834 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:48:23,834 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:48:23,834 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:48:23,834 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:48:23,835 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:48:23,835 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:48:23,835 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:48:23,879 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-09-10 02:48:23,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:48:23,895 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:23,896 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 02:48:23,899 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:23,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:23,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1269401024, now seen corresponding path program 1 times [2019-09-10 02:48:23,908 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:23,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:23,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:23,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:23,951 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:24,226 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 02:48:24,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:24,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:48:24,229 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:24,234 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:24,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:24,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:24,253 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2019-09-10 02:48:24,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:24,287 INFO L93 Difference]: Finished difference Result 115 states and 134 transitions. [2019-09-10 02:48:24,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:24,288 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-10 02:48:24,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:24,299 INFO L225 Difference]: With dead ends: 115 [2019-09-10 02:48:24,299 INFO L226 Difference]: Without dead ends: 104 [2019-09-10 02:48:24,301 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 02:48:24,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-09-10 02:48:24,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-09-10 02:48:24,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-09-10 02:48:24,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 122 transitions. [2019-09-10 02:48:24,360 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 122 transitions. Word has length 51 [2019-09-10 02:48:24,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:24,360 INFO L475 AbstractCegarLoop]: Abstraction has 104 states and 122 transitions. [2019-09-10 02:48:24,361 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:24,361 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 122 transitions. [2019-09-10 02:48:24,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:48:24,365 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:24,365 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 02:48:24,365 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:24,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:24,366 INFO L82 PathProgramCache]: Analyzing trace with hash 595669144, now seen corresponding path program 1 times [2019-09-10 02:48:24,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:24,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:24,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:24,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:24,367 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:24,506 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 02:48:24,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:24,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:48:24,509 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:24,510 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:48:24,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:48:24,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:24,513 INFO L87 Difference]: Start difference. First operand 104 states and 122 transitions. Second operand 3 states. [2019-09-10 02:48:24,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:24,538 INFO L93 Difference]: Finished difference Result 95 states and 110 transitions. [2019-09-10 02:48:24,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:48:24,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-10 02:48:24,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:24,541 INFO L225 Difference]: With dead ends: 95 [2019-09-10 02:48:24,541 INFO L226 Difference]: Without dead ends: 95 [2019-09-10 02:48:24,542 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 02:48:24,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-10 02:48:24,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-10 02:48:24,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-10 02:48:24,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 110 transitions. [2019-09-10 02:48:24,557 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 110 transitions. Word has length 52 [2019-09-10 02:48:24,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:24,558 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 110 transitions. [2019-09-10 02:48:24,560 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:48:24,560 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 110 transitions. [2019-09-10 02:48:24,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 02:48:24,564 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:24,564 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 02:48:24,565 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:24,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:24,567 INFO L82 PathProgramCache]: Analyzing trace with hash 111621899, now seen corresponding path program 1 times [2019-09-10 02:48:24,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:24,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:24,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:24,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:24,568 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:24,791 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 02:48:24,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:24,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:24,792 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:24,793 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:24,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:24,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:24,794 INFO L87 Difference]: Start difference. First operand 95 states and 110 transitions. Second operand 7 states. [2019-09-10 02:48:25,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:25,151 INFO L93 Difference]: Finished difference Result 95 states and 109 transitions. [2019-09-10 02:48:25,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:48:25,152 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-10 02:48:25,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:25,154 INFO L225 Difference]: With dead ends: 95 [2019-09-10 02:48:25,154 INFO L226 Difference]: Without dead ends: 95 [2019-09-10 02:48:25,155 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:48:25,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-10 02:48:25,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-10 02:48:25,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-10 02:48:25,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2019-09-10 02:48:25,164 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 56 [2019-09-10 02:48:25,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:25,165 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2019-09-10 02:48:25,165 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:25,165 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2019-09-10 02:48:25,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-10 02:48:25,167 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:25,168 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] [2019-09-10 02:48:25,168 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:25,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:25,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1110138086, now seen corresponding path program 1 times [2019-09-10 02:48:25,168 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:25,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:25,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:25,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:25,170 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:25,267 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 02:48:25,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:25,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:25,268 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:25,269 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:25,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:25,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:25,270 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand 6 states. [2019-09-10 02:48:25,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:25,477 INFO L93 Difference]: Finished difference Result 154 states and 180 transitions. [2019-09-10 02:48:25,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:25,478 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-09-10 02:48:25,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:25,482 INFO L225 Difference]: With dead ends: 154 [2019-09-10 02:48:25,482 INFO L226 Difference]: Without dead ends: 154 [2019-09-10 02:48:25,483 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 02:48:25,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-09-10 02:48:25,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2019-09-10 02:48:25,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-09-10 02:48:25,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 178 transitions. [2019-09-10 02:48:25,521 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 178 transitions. Word has length 64 [2019-09-10 02:48:25,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:25,521 INFO L475 AbstractCegarLoop]: Abstraction has 152 states and 178 transitions. [2019-09-10 02:48:25,522 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:25,522 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 178 transitions. [2019-09-10 02:48:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-10 02:48:25,524 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:25,524 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:25,524 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:25,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:25,525 INFO L82 PathProgramCache]: Analyzing trace with hash 494399618, now seen corresponding path program 1 times [2019-09-10 02:48:25,525 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:25,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:25,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:25,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:25,526 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:25,622 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 02:48:25,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:25,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:25,622 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:25,623 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:25,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:25,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:25,624 INFO L87 Difference]: Start difference. First operand 152 states and 178 transitions. Second operand 7 states. [2019-09-10 02:48:25,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:25,932 INFO L93 Difference]: Finished difference Result 116 states and 129 transitions. [2019-09-10 02:48:25,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:25,933 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2019-09-10 02:48:25,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:25,934 INFO L225 Difference]: With dead ends: 116 [2019-09-10 02:48:25,934 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:48:25,934 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-10 02:48:25,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:48:25,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:48:25,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:48:25,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:48:25,935 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2019-09-10 02:48:25,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:25,936 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:48:25,936 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:25,936 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:48:25,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:48:25,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:48:25 BoogieIcfgContainer [2019-09-10 02:48:25,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:48:25,944 INFO L168 Benchmark]: Toolchain (without parser) took 4090.37 ms. Allocated memory was 131.1 MB in the beginning and 265.3 MB in the end (delta: 134.2 MB). Free memory was 86.3 MB in the beginning and 172.1 MB in the end (delta: -85.8 MB). Peak memory consumption was 48.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:25,945 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 131.1 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:48:25,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.91 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 86.1 MB in the beginning and 165.0 MB in the end (delta: -78.9 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:25,947 INFO L168 Benchmark]: Boogie Preprocessor took 83.51 ms. Allocated memory is still 199.2 MB. Free memory was 165.0 MB in the beginning and 160.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:25,948 INFO L168 Benchmark]: RCFGBuilder took 1138.84 ms. Allocated memory is still 199.2 MB. Free memory was 160.5 MB in the beginning and 80.1 MB in the end (delta: 80.4 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:25,949 INFO L168 Benchmark]: TraceAbstraction took 2177.36 ms. Allocated memory was 199.2 MB in the beginning and 265.3 MB in the end (delta: 66.1 MB). Free memory was 80.1 MB in the beginning and 172.1 MB in the end (delta: -92.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:48:25,953 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 131.1 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.91 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 86.1 MB in the beginning and 165.0 MB in the end (delta: -78.9 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.51 ms. Allocated memory is still 199.2 MB. Free memory was 165.0 MB in the beginning and 160.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1138.84 ms. Allocated memory is still 199.2 MB. Free memory was 160.5 MB in the beginning and 80.1 MB in the end (delta: 80.4 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2177.36 ms. Allocated memory was 199.2 MB in the beginning and 265.3 MB in the end (delta: 66.1 MB). Free memory was 80.1 MB in the beginning and 172.1 MB in the end (delta: -92.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 510]: 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 36 procedures, 209 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 530 SDtfs, 252 SDslu, 817 SDs, 0 SdLazy, 318 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred 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, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 30424 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...