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_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:02,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:02,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:03,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:03,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:03,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:03,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:03,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:03,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:03,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:03,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:03,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:03,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:03,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:03,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:03,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:03,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:03,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:03,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:03,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:03,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:03,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:03,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:03,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:03,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:03,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:03,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:03,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:03,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:03,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:03,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:03,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:03,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:03,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:03,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:03,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:03,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:03,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:03,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:03,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:03,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:03,085 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 [2019-09-20 13:31:03,102 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:03,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:03,103 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:03,103 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:03,103 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:03,104 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:03,104 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:03,104 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:03,104 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:03,104 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:03,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:03,105 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:03,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:03,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:03,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:03,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:03,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:03,107 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:03,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:03,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:03,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:03,107 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:03,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:03,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:03,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:03,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:03,108 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:03,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:03,109 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:03,109 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:03,137 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:03,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:03,153 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:03,155 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:03,155 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:03,156 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-09-20 13:31:03,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bb640ba8/eb2e3abd93304c48833dc948a57e389c/FLAG52e7ccbf4 [2019-09-20 13:31:03,742 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:03,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-09-20 13:31:03,762 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bb640ba8/eb2e3abd93304c48833dc948a57e389c/FLAG52e7ccbf4 [2019-09-20 13:31:04,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bb640ba8/eb2e3abd93304c48833dc948a57e389c [2019-09-20 13:31:04,037 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:04,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:04,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:04,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:04,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:04,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:04" (1/1) ... [2019-09-20 13:31:04,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b92c7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:04, skipping insertion in model container [2019-09-20 13:31:04,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:04" (1/1) ... [2019-09-20 13:31:04,059 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:04,128 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:04,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:04,639 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:04,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:04,787 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:04,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:04 WrapperNode [2019-09-20 13:31:04,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:04,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:04,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:04,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:04,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:04" (1/1) ... [2019-09-20 13:31:04,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:04" (1/1) ... [2019-09-20 13:31:04,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:04" (1/1) ... [2019-09-20 13:31:04,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:04" (1/1) ... [2019-09-20 13:31:04,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:04" (1/1) ... [2019-09-20 13:31:04,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:04" (1/1) ... [2019-09-20 13:31:04,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:04" (1/1) ... [2019-09-20 13:31:04,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:04,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:04,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:04,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:04,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:04" (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 [2019-09-20 13:31:04,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:04,948 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:04,948 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:04,948 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:04,948 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:04,948 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:31:04,948 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:04,949 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:04,949 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:04,949 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:04,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:04,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:04,949 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:04,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:31:04,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:04,950 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:04,950 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:04,950 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:04,950 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:04,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:04,951 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:04,951 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:04,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:31:04,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:04,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:31:04,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:04,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:04,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:04,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:04,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:04,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:04,952 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:04,953 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:04,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:04,953 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:04,953 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:04,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:04,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:31:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:31:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:31:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:31:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:04,960 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:04,960 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:04,961 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:04,961 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:04,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:04,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:04,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:04,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:04,965 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:06,099 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:06,100 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:06,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:06 BoogieIcfgContainer [2019-09-20 13:31:06,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:06,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:06,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:06,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:06,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:04" (1/3) ... [2019-09-20 13:31:06,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357226c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:06, skipping insertion in model container [2019-09-20 13:31:06,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:04" (2/3) ... [2019-09-20 13:31:06,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357226c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:06, skipping insertion in model container [2019-09-20 13:31:06,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:06" (3/3) ... [2019-09-20 13:31:06,114 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2019-09-20 13:31:06,124 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:06,135 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:06,153 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:06,188 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:06,188 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:06,189 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:06,189 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:06,189 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:06,190 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:06,190 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:06,190 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2019-09-20 13:31:06,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:31:06,223 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:06,225 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] [2019-09-20 13:31:06,227 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:06,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:06,232 INFO L82 PathProgramCache]: Analyzing trace with hash -389891839, now seen corresponding path program 1 times [2019-09-20 13:31:06,235 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:06,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:06,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:06,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:06,293 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:06,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:06,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:06,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:06,620 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:06,629 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:06,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:06,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:06,647 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 2 states. [2019-09-20 13:31:06,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:06,683 INFO L93 Difference]: Finished difference Result 164 states and 193 transitions. [2019-09-20 13:31:06,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:06,685 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:31:06,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:06,698 INFO L225 Difference]: With dead ends: 164 [2019-09-20 13:31:06,699 INFO L226 Difference]: Without dead ends: 153 [2019-09-20 13:31:06,701 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 [2019-09-20 13:31:06,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-09-20 13:31:06,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-09-20 13:31:06,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-09-20 13:31:06,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 181 transitions. [2019-09-20 13:31:06,760 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 181 transitions. Word has length 46 [2019-09-20 13:31:06,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:06,763 INFO L475 AbstractCegarLoop]: Abstraction has 153 states and 181 transitions. [2019-09-20 13:31:06,763 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:06,764 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 181 transitions. [2019-09-20 13:31:06,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:31:06,769 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:06,769 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] [2019-09-20 13:31:06,769 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:06,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:06,770 INFO L82 PathProgramCache]: Analyzing trace with hash 999791911, now seen corresponding path program 1 times [2019-09-20 13:31:06,770 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:06,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:06,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:06,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:06,776 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:06,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:06,893 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:06,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:06,893 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:06,895 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:06,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:06,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:06,897 INFO L87 Difference]: Start difference. First operand 153 states and 181 transitions. Second operand 3 states. [2019-09-20 13:31:06,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:06,927 INFO L93 Difference]: Finished difference Result 144 states and 169 transitions. [2019-09-20 13:31:06,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:06,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:31:06,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:06,937 INFO L225 Difference]: With dead ends: 144 [2019-09-20 13:31:06,937 INFO L226 Difference]: Without dead ends: 144 [2019-09-20 13:31:06,938 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 [2019-09-20 13:31:06,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-09-20 13:31:06,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-09-20 13:31:06,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-09-20 13:31:06,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2019-09-20 13:31:06,967 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 47 [2019-09-20 13:31:06,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:06,967 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2019-09-20 13:31:06,967 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:06,967 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2019-09-20 13:31:06,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:31:06,973 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:06,973 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] [2019-09-20 13:31:06,974 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:06,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:06,975 INFO L82 PathProgramCache]: Analyzing trace with hash -314490359, now seen corresponding path program 1 times [2019-09-20 13:31:06,975 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:06,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:06,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:06,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:06,978 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:07,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:07,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:07,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:07,140 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:07,141 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:07,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:07,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:07,141 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand 7 states. [2019-09-20 13:31:07,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:07,529 INFO L93 Difference]: Finished difference Result 144 states and 168 transitions. [2019-09-20 13:31:07,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:07,529 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-20 13:31:07,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:07,531 INFO L225 Difference]: With dead ends: 144 [2019-09-20 13:31:07,532 INFO L226 Difference]: Without dead ends: 144 [2019-09-20 13:31:07,532 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:31:07,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-09-20 13:31:07,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-09-20 13:31:07,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-09-20 13:31:07,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2019-09-20 13:31:07,545 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 51 [2019-09-20 13:31:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:07,545 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2019-09-20 13:31:07,545 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:07,546 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2019-09-20 13:31:07,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-20 13:31:07,550 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:07,551 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:07,552 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:07,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:07,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1957039538, now seen corresponding path program 1 times [2019-09-20 13:31:07,552 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:07,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:07,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:07,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:07,559 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:07,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:07,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:07,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:31:07,771 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:07,772 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:31:07,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:31:07,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:31:07,773 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 5 states. [2019-09-20 13:31:08,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:08,373 INFO L93 Difference]: Finished difference Result 256 states and 292 transitions. [2019-09-20 13:31:08,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:31:08,373 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-09-20 13:31:08,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:08,376 INFO L225 Difference]: With dead ends: 256 [2019-09-20 13:31:08,376 INFO L226 Difference]: Without dead ends: 256 [2019-09-20 13:31:08,376 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:08,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-09-20 13:31:08,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2019-09-20 13:31:08,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-09-20 13:31:08,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 268 transitions. [2019-09-20 13:31:08,406 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 268 transitions. Word has length 69 [2019-09-20 13:31:08,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:08,406 INFO L475 AbstractCegarLoop]: Abstraction has 238 states and 268 transitions. [2019-09-20 13:31:08,406 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:31:08,406 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 268 transitions. [2019-09-20 13:31:08,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-20 13:31:08,413 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:08,413 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:08,414 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:08,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:08,414 INFO L82 PathProgramCache]: Analyzing trace with hash 868877799, now seen corresponding path program 1 times [2019-09-20 13:31:08,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:08,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:08,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:08,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:08,418 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:08,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:08,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:08,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:31:08,601 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:08,603 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:31:08,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:31:08,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:31:08,605 INFO L87 Difference]: Start difference. First operand 238 states and 268 transitions. Second operand 10 states. [2019-09-20 13:31:09,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:09,269 INFO L93 Difference]: Finished difference Result 557 states and 653 transitions. [2019-09-20 13:31:09,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:31:09,269 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2019-09-20 13:31:09,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:09,276 INFO L225 Difference]: With dead ends: 557 [2019-09-20 13:31:09,276 INFO L226 Difference]: Without dead ends: 557 [2019-09-20 13:31:09,277 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 [2019-09-20 13:31:09,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-09-20 13:31:09,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 547. [2019-09-20 13:31:09,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2019-09-20 13:31:09,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 636 transitions. [2019-09-20 13:31:09,309 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 636 transitions. Word has length 83 [2019-09-20 13:31:09,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:09,310 INFO L475 AbstractCegarLoop]: Abstraction has 547 states and 636 transitions. [2019-09-20 13:31:09,310 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:31:09,310 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 636 transitions. [2019-09-20 13:31:09,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-09-20 13:31:09,314 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:09,314 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:09,315 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:09,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:09,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1669197640, now seen corresponding path program 1 times [2019-09-20 13:31:09,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:09,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:09,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:09,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:09,318 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:09,449 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-20 13:31:09,449 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:09,449 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:09,451 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 155 with the following transitions: [2019-09-20 13:31:09,454 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [113], [129], [132], [134], [135], [138], [140], [143], [150], [153], [155], [164], [168], [172], [175], [180], [186], [188], [191], [206], [207], [219], [221], [226], [229], [230], [232], [235], [239], [240], [241], [242], [243], [244], [247], [250], [254], [260], [289], [293], [294], [297], [299], [302], [312], [315], [319], [320], [323], [324], [339], [342], [343], [344], [367], [369], [370], [371], [372], [437], [438], [448], [456], [457], [458], [459], [460], [462], [463], [464], [465], [466], [467], [468], [469], [470], [504], [505], [506], [507], [510], [511], [512], [513], [516], [517], [520], [521], [522], [523], [524], [525], [526], [527], [528], [529], [530], [531], [536], [537], [538], [539], [550], [551], [554], [556], [557], [562], [563], [564] [2019-09-20 13:31:09,504 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:09,505 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:09,587 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:09,589 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-20 13:31:09,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:09,594 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:09,703 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:09,703 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:09,713 INFO L420 sIntCurrentIteration]: We unified 153 AI predicates to 153 [2019-09-20 13:31:09,714 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:09,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:09,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-20 13:31:09,715 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:09,717 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:09,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:09,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:09,718 INFO L87 Difference]: Start difference. First operand 547 states and 636 transitions. Second operand 2 states. [2019-09-20 13:31:09,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:09,719 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:09,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:09,719 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-09-20 13:31:09,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:09,720 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:09,720 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:09,721 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:09,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:09,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:09,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:09,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:09,722 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2019-09-20 13:31:09,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:09,722 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:09,722 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:09,723 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:09,723 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:09,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:09 BoogieIcfgContainer [2019-09-20 13:31:09,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:09,737 INFO L168 Benchmark]: Toolchain (without parser) took 5696.76 ms. Allocated memory was 133.2 MB in the beginning and 263.2 MB in the end (delta: 130.0 MB). Free memory was 87.8 MB in the beginning and 134.1 MB in the end (delta: -46.3 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:09,739 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:09,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.09 ms. Allocated memory was 133.2 MB in the beginning and 199.2 MB in the end (delta: 66.1 MB). Free memory was 87.6 MB in the beginning and 163.7 MB in the end (delta: -76.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:09,742 INFO L168 Benchmark]: Boogie Preprocessor took 94.96 ms. Allocated memory is still 199.2 MB. Free memory was 163.7 MB in the beginning and 159.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:09,745 INFO L168 Benchmark]: RCFGBuilder took 1219.29 ms. Allocated memory was 199.2 MB in the beginning and 223.9 MB in the end (delta: 24.6 MB). Free memory was 159.2 MB in the beginning and 188.8 MB in the end (delta: -29.6 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:09,747 INFO L168 Benchmark]: TraceAbstraction took 3629.59 ms. Allocated memory was 223.9 MB in the beginning and 263.2 MB in the end (delta: 39.3 MB). Free memory was 188.8 MB in the beginning and 134.1 MB in the end (delta: 54.6 MB). Peak memory consumption was 93.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:09,762 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 746.09 ms. Allocated memory was 133.2 MB in the beginning and 199.2 MB in the end (delta: 66.1 MB). Free memory was 87.6 MB in the beginning and 163.7 MB in the end (delta: -76.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.96 ms. Allocated memory is still 199.2 MB. Free memory was 163.7 MB in the beginning and 159.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1219.29 ms. Allocated memory was 199.2 MB in the beginning and 223.9 MB in the end (delta: 24.6 MB). Free memory was 159.2 MB in the beginning and 188.8 MB in the end (delta: -29.6 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3629.59 ms. Allocated memory was 223.9 MB in the beginning and 263.2 MB in the end (delta: 39.3 MB). Free memory was 188.8 MB in the beginning and 134.1 MB in the end (delta: 54.6 MB). Peak memory consumption was 93.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 42 procedures, 252 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 929 SDtfs, 645 SDslu, 2042 SDs, 0 SdLazy, 816 SolverSat, 183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 209 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=547occurred in iteration=5, 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, 0.8366013071895425 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 450 NumberOfCodeBlocks, 450 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 444 ConstructedInterpolants, 0 QuantifiedInterpolants, 59676 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 34/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...