java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:52,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:52,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:53,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:53,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:53,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:53,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:53,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:53,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:53,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:53,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:53,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:53,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:53,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:53,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:53,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:53,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:53,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:53,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:53,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:53,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:53,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:53,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:53,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:53,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:53,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:53,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:53,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:53,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:53,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:53,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:53,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:53,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:53,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:53,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:53,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:53,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:53,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:53,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:53,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:53,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:53,038 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 17:08:53,054 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:53,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:53,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:53,055 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:53,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:53,055 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:53,056 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:53,056 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:53,056 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:53,056 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:53,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:53,057 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:53,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:53,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:53,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:53,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:53,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:53,058 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:53,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:53,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:53,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:53,059 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:53,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:53,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:53,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:53,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:53,060 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:53,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:53,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:53,061 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:53,090 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:53,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:53,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:53,114 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:53,114 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:53,115 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product06.cil.c [2019-09-16 17:08:53,196 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16911b87d/b7c4898705064205a927bd007f0d8684/FLAGc2d6effe1 [2019-09-16 17:08:53,755 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:53,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product06.cil.c [2019-09-16 17:08:53,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16911b87d/b7c4898705064205a927bd007f0d8684/FLAGc2d6effe1 [2019-09-16 17:08:54,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16911b87d/b7c4898705064205a927bd007f0d8684 [2019-09-16 17:08:54,138 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:54,140 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:54,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:54,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:54,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:54,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:54" (1/1) ... [2019-09-16 17:08:54,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a112de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:54, skipping insertion in model container [2019-09-16 17:08:54,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:54" (1/1) ... [2019-09-16 17:08:54,160 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:54,211 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:54,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:54,649 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:54,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:54,808 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:54,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:54 WrapperNode [2019-09-16 17:08:54,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:54,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:54,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:54,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:54,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:54" (1/1) ... [2019-09-16 17:08:54,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:54" (1/1) ... [2019-09-16 17:08:54,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:54" (1/1) ... [2019-09-16 17:08:54,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:54" (1/1) ... [2019-09-16 17:08:54,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:54" (1/1) ... [2019-09-16 17:08:54,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:54" (1/1) ... [2019-09-16 17:08:54,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:54" (1/1) ... [2019-09-16 17:08:54,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:54,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:54,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:54,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:54,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:55,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:55,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:55,011 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:55,011 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:55,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:55,012 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:08:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:08:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:08:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:55,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:08:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:08:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:08:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:56,095 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:56,095 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:56,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:56 BoogieIcfgContainer [2019-09-16 17:08:56,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:56,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:56,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:56,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:56,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:54" (1/3) ... [2019-09-16 17:08:56,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b670cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:56, skipping insertion in model container [2019-09-16 17:08:56,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:54" (2/3) ... [2019-09-16 17:08:56,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b670cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:56, skipping insertion in model container [2019-09-16 17:08:56,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:56" (3/3) ... [2019-09-16 17:08:56,109 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product06.cil.c [2019-09-16 17:08:56,120 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:56,133 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:56,151 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:56,185 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:56,186 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:56,186 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:56,186 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:56,187 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:56,187 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:56,187 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:56,187 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:56,225 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2019-09-16 17:08:56,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:08:56,244 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:56,245 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 17:08:56,248 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:56,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:56,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1990004152, now seen corresponding path program 1 times [2019-09-16 17:08:56,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:56,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:56,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:56,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:56,315 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:56,630 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 17:08:56,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:56,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:56,633 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:56,640 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:56,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:56,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:56,660 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 2 states. [2019-09-16 17:08:56,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:56,691 INFO L93 Difference]: Finished difference Result 117 states and 134 transitions. [2019-09-16 17:08:56,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:56,693 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:08:56,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:56,706 INFO L225 Difference]: With dead ends: 117 [2019-09-16 17:08:56,706 INFO L226 Difference]: Without dead ends: 106 [2019-09-16 17:08:56,708 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 17:08:56,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-09-16 17:08:56,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-09-16 17:08:56,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-09-16 17:08:56,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2019-09-16 17:08:56,761 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 46 [2019-09-16 17:08:56,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:56,762 INFO L475 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2019-09-16 17:08:56,762 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:56,762 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2019-09-16 17:08:56,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:08:56,767 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:56,770 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 17:08:56,771 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:56,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:56,771 INFO L82 PathProgramCache]: Analyzing trace with hash 925385075, now seen corresponding path program 1 times [2019-09-16 17:08:56,771 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:56,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:56,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:56,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:56,775 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:56,947 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 17:08:56,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:56,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:56,948 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:56,951 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:56,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:56,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:56,952 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand 3 states. [2019-09-16 17:08:56,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:56,978 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2019-09-16 17:08:56,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:56,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:08:56,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:56,981 INFO L225 Difference]: With dead ends: 97 [2019-09-16 17:08:56,981 INFO L226 Difference]: Without dead ends: 97 [2019-09-16 17:08:56,982 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 17:08:56,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-09-16 17:08:56,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2019-09-16 17:08:56,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-09-16 17:08:56,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 110 transitions. [2019-09-16 17:08:56,994 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 110 transitions. Word has length 47 [2019-09-16 17:08:56,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:56,994 INFO L475 AbstractCegarLoop]: Abstraction has 97 states and 110 transitions. [2019-09-16 17:08:56,994 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:56,994 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 110 transitions. [2019-09-16 17:08:56,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:56,997 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:56,997 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 17:08:56,997 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:56,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:56,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1884487534, now seen corresponding path program 1 times [2019-09-16 17:08:56,998 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:57,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:57,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:57,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:57,002 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:57,182 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 17:08:57,182 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:57,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:57,183 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:57,183 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:57,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:57,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:57,184 INFO L87 Difference]: Start difference. First operand 97 states and 110 transitions. Second operand 7 states. [2019-09-16 17:08:57,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:57,465 INFO L93 Difference]: Finished difference Result 97 states and 109 transitions. [2019-09-16 17:08:57,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:57,466 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:08:57,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:57,468 INFO L225 Difference]: With dead ends: 97 [2019-09-16 17:08:57,468 INFO L226 Difference]: Without dead ends: 97 [2019-09-16 17:08:57,469 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 17:08:57,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-09-16 17:08:57,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2019-09-16 17:08:57,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-09-16 17:08:57,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2019-09-16 17:08:57,489 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 52 [2019-09-16 17:08:57,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:57,490 INFO L475 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2019-09-16 17:08:57,490 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:57,491 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2019-09-16 17:08:57,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-16 17:08:57,493 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:57,494 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] [2019-09-16 17:08:57,494 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:57,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:57,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1119651887, now seen corresponding path program 1 times [2019-09-16 17:08:57,495 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:57,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:57,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:57,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:57,498 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:57,675 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 17:08:57,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:57,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-16 17:08:57,676 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:57,676 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-16 17:08:57,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-16 17:08:57,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:08:57,677 INFO L87 Difference]: Start difference. First operand 97 states and 109 transitions. Second operand 10 states. [2019-09-16 17:08:58,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:58,314 INFO L93 Difference]: Finished difference Result 223 states and 262 transitions. [2019-09-16 17:08:58,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-16 17:08:58,315 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 60 [2019-09-16 17:08:58,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:58,319 INFO L225 Difference]: With dead ends: 223 [2019-09-16 17:08:58,319 INFO L226 Difference]: Without dead ends: 223 [2019-09-16 17:08:58,320 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:08:58,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2019-09-16 17:08:58,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2019-09-16 17:08:58,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-09-16 17:08:58,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 255 transitions. [2019-09-16 17:08:58,345 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 255 transitions. Word has length 60 [2019-09-16 17:08:58,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:58,346 INFO L475 AbstractCegarLoop]: Abstraction has 219 states and 255 transitions. [2019-09-16 17:08:58,346 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-16 17:08:58,346 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 255 transitions. [2019-09-16 17:08:58,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-16 17:08:58,349 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:58,349 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] [2019-09-16 17:08:58,349 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:58,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:58,350 INFO L82 PathProgramCache]: Analyzing trace with hash -466732751, now seen corresponding path program 1 times [2019-09-16 17:08:58,350 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:58,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:58,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:58,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:58,353 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:58,466 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 17:08:58,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:58,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:58,467 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:58,469 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:58,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:58,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:58,469 INFO L87 Difference]: Start difference. First operand 219 states and 255 transitions. Second operand 3 states. [2019-09-16 17:08:58,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:58,484 INFO L93 Difference]: Finished difference Result 161 states and 179 transitions. [2019-09-16 17:08:58,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:58,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-16 17:08:58,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:58,487 INFO L225 Difference]: With dead ends: 161 [2019-09-16 17:08:58,487 INFO L226 Difference]: Without dead ends: 161 [2019-09-16 17:08:58,487 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:58,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-09-16 17:08:58,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2019-09-16 17:08:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-09-16 17:08:58,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 179 transitions. [2019-09-16 17:08:58,514 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 179 transitions. Word has length 68 [2019-09-16 17:08:58,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:58,515 INFO L475 AbstractCegarLoop]: Abstraction has 161 states and 179 transitions. [2019-09-16 17:08:58,515 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:58,517 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 179 transitions. [2019-09-16 17:08:58,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-09-16 17:08:58,524 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:58,525 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:08:58,525 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:58,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:58,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1684356351, now seen corresponding path program 1 times [2019-09-16 17:08:58,526 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:58,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:58,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:58,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:58,532 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:58,701 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-16 17:08:58,702 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:08:58,702 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:08:58,703 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 101 with the following transitions: [2019-09-16 17:08:58,705 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [102], [118], [133], [136], [137], [138], [147], [151], [155], [158], [163], [169], [171], [177], [180], [201], [202], [208], [212], [218], [258], [262], [263], [266], [267], [268], [361], [362], [372], [380], [381], [382], [383], [384], [386], [387], [388], [389], [390], [391], [392], [393], [394], [432], [433], [434], [435], [440], [441], [446], [447], [448], [449], [456], [464], [465], [466] [2019-09-16 17:08:58,754 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:08:58,754 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:08:58,826 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:08:58,828 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-16 17:08:58,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:58,832 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:08:58,872 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:08:58,872 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:08:58,879 INFO L420 sIntCurrentIteration]: We unified 99 AI predicates to 99 [2019-09-16 17:08:58,880 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:08:58,880 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:08:58,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-16 17:08:58,881 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:58,881 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:58,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:58,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:58,882 INFO L87 Difference]: Start difference. First operand 161 states and 179 transitions. Second operand 2 states. [2019-09-16 17:08:58,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:58,882 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:08:58,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:58,883 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 100 [2019-09-16 17:08:58,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:58,883 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:08:58,883 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:58,883 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 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 17:08:58,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:58,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:58,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:58,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:58,887 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2019-09-16 17:08:58,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:58,887 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:58,888 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:58,888 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:58,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:58,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:58 BoogieIcfgContainer [2019-09-16 17:08:58,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:58,898 INFO L168 Benchmark]: Toolchain (without parser) took 4757.14 ms. Allocated memory was 138.9 MB in the beginning and 265.3 MB in the end (delta: 126.4 MB). Free memory was 84.0 MB in the beginning and 120.8 MB in the end (delta: -36.8 MB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:58,898 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 103.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:08:58,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.03 ms. Allocated memory was 138.9 MB in the beginning and 198.7 MB in the end (delta: 59.8 MB). Free memory was 83.6 MB in the beginning and 164.8 MB in the end (delta: -81.2 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:58,900 INFO L168 Benchmark]: Boogie Preprocessor took 111.68 ms. Allocated memory is still 198.7 MB. Free memory was 164.8 MB in the beginning and 161.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:58,901 INFO L168 Benchmark]: RCFGBuilder took 1175.59 ms. Allocated memory is still 198.7 MB. Free memory was 161.2 MB in the beginning and 80.7 MB in the end (delta: 80.6 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:58,902 INFO L168 Benchmark]: TraceAbstraction took 2796.45 ms. Allocated memory was 198.7 MB in the beginning and 265.3 MB in the end (delta: 66.6 MB). Free memory was 80.7 MB in the beginning and 120.8 MB in the end (delta: -40.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:58,906 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 138.9 MB. Free memory is still 103.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 666.03 ms. Allocated memory was 138.9 MB in the beginning and 198.7 MB in the end (delta: 59.8 MB). Free memory was 83.6 MB in the beginning and 164.8 MB in the end (delta: -81.2 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.68 ms. Allocated memory is still 198.7 MB. Free memory was 164.8 MB in the beginning and 161.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1175.59 ms. Allocated memory is still 198.7 MB. Free memory was 161.2 MB in the beginning and 80.7 MB in the end (delta: 80.6 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2796.45 ms. Allocated memory was 198.7 MB in the beginning and 265.3 MB in the end (delta: 66.6 MB). Free memory was 80.7 MB in the beginning and 120.8 MB in the end (delta: -40.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 872]: 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, 208 locations, 1 error locations. SAFE Result, 2.7s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 559 SDtfs, 342 SDslu, 1056 SDs, 0 SdLazy, 369 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.9696969696969697 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 373 NumberOfCodeBlocks, 373 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 367 ConstructedInterpolants, 0 QuantifiedInterpolants, 49717 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 28/32 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...