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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:48:30,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:48:30,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:48:30,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:48:30,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:48:30,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:48:30,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:48:30,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:48:30,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:48:30,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:48:30,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:48:30,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:48:30,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:48:30,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:48:30,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:48:30,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:48:30,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:48:30,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:48:30,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:48:30,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:48:30,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:48:30,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:48:30,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:48:30,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:48:30,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:48:30,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:48:30,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:48:30,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:48:30,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:48:30,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:48:30,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:48:30,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:48:30,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:48:30,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:48:30,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:48:30,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:48:30,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:48:30,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:48:30,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:48:30,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:48:30,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:48:30,879 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 02:48:30,894 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:48:30,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:48:30,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:48:30,895 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:48:30,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:48:30,896 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:48:30,896 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:48:30,896 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:48:30,896 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:48:30,897 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:48:30,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:48:30,898 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:48:30,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:48:30,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:48:30,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:48:30,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:48:30,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:48:30,899 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:48:30,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:48:30,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:48:30,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:48:30,900 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:48:30,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:48:30,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:30,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:48:30,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:48:30,901 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:48:30,901 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:48:30,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:48:30,901 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:48:30,949 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:48:30,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:48:30,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:48:30,965 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:48:30,966 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:48:30,967 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product21.cil.c [2019-09-10 02:48:31,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49f16683e/da12e74c23d84e0a88443242cf249d83/FLAG9153e265e [2019-09-10 02:48:31,500 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:48:31,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product21.cil.c [2019-09-10 02:48:31,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49f16683e/da12e74c23d84e0a88443242cf249d83/FLAG9153e265e [2019-09-10 02:48:31,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49f16683e/da12e74c23d84e0a88443242cf249d83 [2019-09-10 02:48:31,873 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:48:31,875 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:48:31,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:31,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:48:31,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:48:31,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:31" (1/1) ... [2019-09-10 02:48:31,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74340391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:31, skipping insertion in model container [2019-09-10 02:48:31,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:31" (1/1) ... [2019-09-10 02:48:31,892 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:48:31,949 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:48:32,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:32,406 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:48:32,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:32,597 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:48:32,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:32 WrapperNode [2019-09-10 02:48:32,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:32,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:48:32,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:48:32,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:48:32,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:32" (1/1) ... [2019-09-10 02:48:32,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:32" (1/1) ... [2019-09-10 02:48:32,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:32" (1/1) ... [2019-09-10 02:48:32,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:32" (1/1) ... [2019-09-10 02:48:32,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:32" (1/1) ... [2019-09-10 02:48:32,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:32" (1/1) ... [2019-09-10 02:48:32,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:32" (1/1) ... [2019-09-10 02:48:32,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:48:32,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:48:32,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:48:32,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:48:32,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:32" (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 02:48:32,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:48:32,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:48:32,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:32,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:32,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:32,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:32,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:48:32,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:48:32,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:48:32,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:32,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:32,804 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:48:32,804 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:48:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:48:32,806 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:48:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:48:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:48:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:48:32,807 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:48:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:48:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:48:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:48:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:48:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:48:32,809 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:48:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:48:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:48:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:48:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:48:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:48:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-10 02:48:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:48:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:48:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:48:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:48:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:48:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:48:32,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:48:32,812 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:48:32,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:48:32,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:48:32,812 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:48:32,812 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:48:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:48:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:48:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:48:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:48:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:48:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:48:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:48:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:48:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:48:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:48:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:48:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:48:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:48:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:48:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:48:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:48:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:48:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:48:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:48:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:48:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:48:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:48:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:48:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:48:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:48:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:48:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:48:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:48:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:48:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:48:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:48:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:48:32,822 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:48:32,822 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:48:32,822 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:48:32,822 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:48:32,823 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:48:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:48:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-10 02:48:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:48:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:48:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:48:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:48:33,988 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:48:33,988 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:48:33,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:33 BoogieIcfgContainer [2019-09-10 02:48:33,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:48:33,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:48:33,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:48:33,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:48:33,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:48:31" (1/3) ... [2019-09-10 02:48:33,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf6d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:33, skipping insertion in model container [2019-09-10 02:48:33,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:32" (2/3) ... [2019-09-10 02:48:33,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf6d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:33, skipping insertion in model container [2019-09-10 02:48:33,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:33" (3/3) ... [2019-09-10 02:48:33,998 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product21.cil.c [2019-09-10 02:48:34,008 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:48:34,017 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:48:34,033 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:48:34,061 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:48:34,062 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:48:34,062 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:48:34,062 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:48:34,062 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:48:34,062 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:48:34,063 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:48:34,063 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:48:34,083 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2019-09-10 02:48:34,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:48:34,097 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:34,099 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 02:48:34,101 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:34,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:34,108 INFO L82 PathProgramCache]: Analyzing trace with hash -555791625, now seen corresponding path program 1 times [2019-09-10 02:48:34,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:34,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:34,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:34,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:34,164 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:34,445 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 02:48:34,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:34,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:48:34,449 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:34,455 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:34,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:34,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:34,475 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2019-09-10 02:48:34,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:34,509 INFO L93 Difference]: Finished difference Result 135 states and 159 transitions. [2019-09-10 02:48:34,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:34,511 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-10 02:48:34,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:34,524 INFO L225 Difference]: With dead ends: 135 [2019-09-10 02:48:34,525 INFO L226 Difference]: Without dead ends: 124 [2019-09-10 02:48:34,527 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 02:48:34,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-09-10 02:48:34,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-09-10 02:48:34,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-09-10 02:48:34,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 147 transitions. [2019-09-10 02:48:34,584 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 147 transitions. Word has length 51 [2019-09-10 02:48:34,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:34,584 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 147 transitions. [2019-09-10 02:48:34,584 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:34,585 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 147 transitions. [2019-09-10 02:48:34,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:48:34,589 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:34,589 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 02:48:34,589 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:34,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:34,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1211509884, now seen corresponding path program 1 times [2019-09-10 02:48:34,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:34,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:34,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:34,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:34,592 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:34,774 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 02:48:34,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:34,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:48:34,775 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:34,779 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:48:34,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:48:34,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:34,780 INFO L87 Difference]: Start difference. First operand 124 states and 147 transitions. Second operand 3 states. [2019-09-10 02:48:34,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:34,802 INFO L93 Difference]: Finished difference Result 115 states and 135 transitions. [2019-09-10 02:48:34,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:48:34,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-10 02:48:34,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:34,806 INFO L225 Difference]: With dead ends: 115 [2019-09-10 02:48:34,806 INFO L226 Difference]: Without dead ends: 115 [2019-09-10 02:48:34,807 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 02:48:34,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-09-10 02:48:34,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-09-10 02:48:34,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-09-10 02:48:34,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2019-09-10 02:48:34,821 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2019-09-10 02:48:34,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:34,822 INFO L475 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2019-09-10 02:48:34,822 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:48:34,822 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2019-09-10 02:48:34,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 02:48:34,825 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:34,825 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 02:48:34,825 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:34,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:34,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1935073950, now seen corresponding path program 1 times [2019-09-10 02:48:34,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:34,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:34,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:34,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:34,827 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:34,940 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 02:48:34,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:34,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:48:34,941 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:34,941 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:48:34,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:48:34,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:34,942 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 3 states. [2019-09-10 02:48:34,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:34,970 INFO L93 Difference]: Finished difference Result 115 states and 134 transitions. [2019-09-10 02:48:34,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:48:34,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2019-09-10 02:48:34,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:34,973 INFO L225 Difference]: With dead ends: 115 [2019-09-10 02:48:34,975 INFO L226 Difference]: Without dead ends: 115 [2019-09-10 02:48:34,976 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 02:48:34,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-09-10 02:48:34,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-09-10 02:48:34,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-09-10 02:48:34,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2019-09-10 02:48:34,992 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 56 [2019-09-10 02:48:34,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:34,993 INFO L475 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2019-09-10 02:48:34,993 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:48:34,993 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2019-09-10 02:48:34,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-10 02:48:34,998 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:34,998 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, 1] [2019-09-10 02:48:34,998 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:34,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:34,998 INFO L82 PathProgramCache]: Analyzing trace with hash 865162855, now seen corresponding path program 1 times [2019-09-10 02:48:34,998 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:35,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:35,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:35,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:35,000 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:35,222 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 02:48:35,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:35,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:35,223 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:35,223 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:35,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:35,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:35,224 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand 6 states. [2019-09-10 02:48:35,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:35,543 INFO L93 Difference]: Finished difference Result 194 states and 230 transitions. [2019-09-10 02:48:35,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:35,547 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2019-09-10 02:48:35,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:35,555 INFO L225 Difference]: With dead ends: 194 [2019-09-10 02:48:35,555 INFO L226 Difference]: Without dead ends: 194 [2019-09-10 02:48:35,556 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 02:48:35,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-09-10 02:48:35,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2019-09-10 02:48:35,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2019-09-10 02:48:35,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 228 transitions. [2019-09-10 02:48:35,606 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 228 transitions. Word has length 69 [2019-09-10 02:48:35,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:35,606 INFO L475 AbstractCegarLoop]: Abstraction has 192 states and 228 transitions. [2019-09-10 02:48:35,607 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:35,607 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 228 transitions. [2019-09-10 02:48:35,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-10 02:48:35,612 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:35,612 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, 1, 1, 1, 1, 1] [2019-09-10 02:48:35,613 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:35,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:35,613 INFO L82 PathProgramCache]: Analyzing trace with hash -2006019637, now seen corresponding path program 1 times [2019-09-10 02:48:35,613 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:35,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:35,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:35,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:35,618 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:35,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:35,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:35,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:35,793 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:35,794 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:35,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:35,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:35,795 INFO L87 Difference]: Start difference. First operand 192 states and 228 transitions. Second operand 7 states. [2019-09-10 02:48:36,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:36,107 INFO L93 Difference]: Finished difference Result 126 states and 139 transitions. [2019-09-10 02:48:36,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:36,107 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-09-10 02:48:36,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:36,108 INFO L225 Difference]: With dead ends: 126 [2019-09-10 02:48:36,108 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:48:36,109 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-10 02:48:36,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:48:36,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:48:36,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:48:36,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:48:36,110 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2019-09-10 02:48:36,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:36,110 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:48:36,110 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:36,110 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:48:36,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:48:36,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:48:36 BoogieIcfgContainer [2019-09-10 02:48:36,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:48:36,118 INFO L168 Benchmark]: Toolchain (without parser) took 4243.14 ms. Allocated memory was 133.2 MB in the beginning and 259.0 MB in the end (delta: 125.8 MB). Free memory was 88.0 MB in the beginning and 166.8 MB in the end (delta: -78.8 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:36,119 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:48:36,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.33 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 87.6 MB in the beginning and 165.4 MB in the end (delta: -77.8 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:36,121 INFO L168 Benchmark]: Boogie Preprocessor took 121.16 ms. Allocated memory is still 200.3 MB. Free memory was 165.4 MB in the beginning and 161.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:36,122 INFO L168 Benchmark]: RCFGBuilder took 1270.19 ms. Allocated memory was 200.3 MB in the beginning and 225.4 MB in the end (delta: 25.2 MB). Free memory was 161.0 MB in the beginning and 193.2 MB in the end (delta: -32.3 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:36,123 INFO L168 Benchmark]: TraceAbstraction took 2124.97 ms. Allocated memory was 225.4 MB in the beginning and 259.0 MB in the end (delta: 33.6 MB). Free memory was 193.2 MB in the beginning and 166.8 MB in the end (delta: 26.4 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:36,127 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 722.33 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 87.6 MB in the beginning and 165.4 MB in the end (delta: -77.8 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.16 ms. Allocated memory is still 200.3 MB. Free memory was 165.4 MB in the beginning and 161.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1270.19 ms. Allocated memory was 200.3 MB in the beginning and 225.4 MB in the end (delta: 25.2 MB). Free memory was 161.0 MB in the beginning and 193.2 MB in the end (delta: -32.3 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2124.97 ms. Allocated memory was 225.4 MB in the beginning and 259.0 MB in the end (delta: 33.6 MB). Free memory was 193.2 MB in the beginning and 166.8 MB in the end (delta: 26.4 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 650]: 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 39 procedures, 229 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 641 SDtfs, 288 SDslu, 724 SDs, 0 SdLazy, 243 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred 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, 301 NumberOfCodeBlocks, 301 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 296 ConstructedInterpolants, 0 QuantifiedInterpolants, 32144 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...