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_spec5_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:50:43,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:50:43,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:50:43,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:50:43,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:50:43,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:50:43,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:50:43,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:50:43,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:50:43,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:50:43,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:50:43,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:50:43,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:50:43,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:50:43,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:50:43,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:50:43,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:50:43,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:50:43,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:50:43,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:50:43,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:50:43,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:50:43,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:50:43,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:50:43,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:50:43,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:50:43,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:50:43,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:50:43,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:50:43,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:50:43,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:50:43,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:50:43,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:50:43,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:50:43,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:50:43,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:50:43,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:50:43,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:50:43,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:50:43,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:50:43,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:50:43,132 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 02:50:43,157 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:50:43,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:50:43,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:50:43,167 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:50:43,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:50:43,169 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:50:43,169 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:50:43,170 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:50:43,170 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:50:43,170 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:50:43,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:50:43,175 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:50:43,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:50:43,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:50:43,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:50:43,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:50:43,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:50:43,177 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:50:43,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:50:43,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:50:43,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:50:43,179 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:50:43,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:50:43,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:43,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:50:43,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:50:43,180 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:50:43,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:50:43,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:50:43,181 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:50:43,213 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:50:43,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:50:43,229 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:50:43,231 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:50:43,231 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:50:43,232 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product13.cil.c [2019-09-10 02:50:43,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88172ad4f/1bfff397a5fb4a4f8b34478745e59cef/FLAG13b6a5642 [2019-09-10 02:50:43,749 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:50:43,750 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product13.cil.c [2019-09-10 02:50:43,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88172ad4f/1bfff397a5fb4a4f8b34478745e59cef/FLAG13b6a5642 [2019-09-10 02:50:44,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88172ad4f/1bfff397a5fb4a4f8b34478745e59cef [2019-09-10 02:50:44,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:50:44,089 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:50:44,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:44,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:50:44,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:50:44,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:44" (1/1) ... [2019-09-10 02:50:44,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18312eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:44, skipping insertion in model container [2019-09-10 02:50:44,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:44" (1/1) ... [2019-09-10 02:50:44,105 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:50:44,168 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:50:44,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:44,597 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:50:44,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:44,718 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:50:44,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:44 WrapperNode [2019-09-10 02:50:44,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:44,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:50:44,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:50:44,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:50:44,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:44" (1/1) ... [2019-09-10 02:50:44,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:44" (1/1) ... [2019-09-10 02:50:44,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:44" (1/1) ... [2019-09-10 02:50:44,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:44" (1/1) ... [2019-09-10 02:50:44,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:44" (1/1) ... [2019-09-10 02:50:44,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:44" (1/1) ... [2019-09-10 02:50:44,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:44" (1/1) ... [2019-09-10 02:50:44,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:50:44,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:50:44,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:50:44,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:50:44,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:44" (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 02:50:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:50:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:50:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:50:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:50:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:50:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:50:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:50:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:50:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:50:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-10 02:50:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-10 02:50:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-10 02:50:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:50:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:50:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:50:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:50:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:50:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:50:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:50:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:50:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:50:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:50:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:50:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:50:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:50:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:50:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:50:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-10 02:50:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:50:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:50:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:50:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:50:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:50:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:50:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:50:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:50:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:50:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:50:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:50:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:50:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:50:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:50:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:50:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:50:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:50:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:50:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:50:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:50:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:50:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:50:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:50:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:50:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:50:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:50:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:50:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:50:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:50:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-10 02:50:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-10 02:50:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-10 02:50:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:50:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:50:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:50:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:50:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:50:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:50:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:50:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:50:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:50:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:50:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:50:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:50:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:50:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:50:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:50:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:50:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:50:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:50:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-10 02:50:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:50:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:50:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:50:46,138 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:50:46,141 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:50:46,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:46 BoogieIcfgContainer [2019-09-10 02:50:46,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:50:46,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:50:46,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:50:46,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:50:46,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:50:44" (1/3) ... [2019-09-10 02:50:46,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8146be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:46, skipping insertion in model container [2019-09-10 02:50:46,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:44" (2/3) ... [2019-09-10 02:50:46,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8146be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:46, skipping insertion in model container [2019-09-10 02:50:46,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:46" (3/3) ... [2019-09-10 02:50:46,151 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product13.cil.c [2019-09-10 02:50:46,161 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:50:46,173 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:50:46,189 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:50:46,214 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:50:46,215 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:50:46,215 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:50:46,215 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:50:46,215 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:50:46,216 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:50:46,216 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:50:46,216 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:50:46,237 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2019-09-10 02:50:46,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 02:50:46,251 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:46,252 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 02:50:46,255 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:46,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:46,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1595461522, now seen corresponding path program 1 times [2019-09-10 02:50:46,264 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:46,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:46,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:46,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:46,318 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:46,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:50:46,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:46,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:50:46,624 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:46,632 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:46,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:46,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:46,652 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 2 states. [2019-09-10 02:50:46,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:46,697 INFO L93 Difference]: Finished difference Result 123 states and 142 transitions. [2019-09-10 02:50:46,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:46,700 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-10 02:50:46,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:46,726 INFO L225 Difference]: With dead ends: 123 [2019-09-10 02:50:46,726 INFO L226 Difference]: Without dead ends: 112 [2019-09-10 02:50:46,728 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 02:50:46,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2019-09-10 02:50:46,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2019-09-10 02:50:46,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-09-10 02:50:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2019-09-10 02:50:46,828 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 59 [2019-09-10 02:50:46,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:46,830 INFO L475 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2019-09-10 02:50:46,830 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:46,830 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2019-09-10 02:50:46,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 02:50:46,840 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:46,840 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 02:50:46,840 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:46,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:46,842 INFO L82 PathProgramCache]: Analyzing trace with hash 656370565, now seen corresponding path program 1 times [2019-09-10 02:50:46,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:46,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:46,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:46,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:46,845 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:46,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:50:46,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:46,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:50:46,995 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:46,998 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:50:46,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:50:46,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:46,999 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand 3 states. [2019-09-10 02:50:47,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:47,028 INFO L93 Difference]: Finished difference Result 103 states and 118 transitions. [2019-09-10 02:50:47,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:50:47,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-10 02:50:47,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:47,035 INFO L225 Difference]: With dead ends: 103 [2019-09-10 02:50:47,035 INFO L226 Difference]: Without dead ends: 103 [2019-09-10 02:50:47,036 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 02:50:47,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-09-10 02:50:47,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2019-09-10 02:50:47,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-09-10 02:50:47,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 118 transitions. [2019-09-10 02:50:47,062 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 118 transitions. Word has length 60 [2019-09-10 02:50:47,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:47,063 INFO L475 AbstractCegarLoop]: Abstraction has 103 states and 118 transitions. [2019-09-10 02:50:47,063 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:50:47,063 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 118 transitions. [2019-09-10 02:50:47,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-10 02:50:47,067 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:47,068 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 02:50:47,068 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:47,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:47,069 INFO L82 PathProgramCache]: Analyzing trace with hash 164051159, now seen corresponding path program 1 times [2019-09-10 02:50:47,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:47,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:47,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:47,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:47,070 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:50:47,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:47,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:50:47,291 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:47,292 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:50:47,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:50:47,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:50:47,293 INFO L87 Difference]: Start difference. First operand 103 states and 118 transitions. Second operand 7 states. [2019-09-10 02:50:47,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:47,580 INFO L93 Difference]: Finished difference Result 103 states and 117 transitions. [2019-09-10 02:50:47,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:50:47,580 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2019-09-10 02:50:47,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:47,582 INFO L225 Difference]: With dead ends: 103 [2019-09-10 02:50:47,582 INFO L226 Difference]: Without dead ends: 103 [2019-09-10 02:50:47,583 INFO L628 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 [2019-09-10 02:50:47,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-09-10 02:50:47,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2019-09-10 02:50:47,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-09-10 02:50:47,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2019-09-10 02:50:47,592 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 64 [2019-09-10 02:50:47,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:47,594 INFO L475 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2019-09-10 02:50:47,594 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:50:47,594 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2019-09-10 02:50:47,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-10 02:50:47,595 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:47,596 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 02:50:47,596 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:47,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:47,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1236378138, now seen corresponding path program 1 times [2019-09-10 02:50:47,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:47,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:47,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:47,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:47,598 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:47,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:50:47,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:47,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:50:47,766 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:47,768 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:50:47,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:50:47,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:50:47,769 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 7 states. [2019-09-10 02:50:48,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:48,159 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2019-09-10 02:50:48,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:50:48,160 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 72 [2019-09-10 02:50:48,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:48,161 INFO L225 Difference]: With dead ends: 81 [2019-09-10 02:50:48,161 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:50:48,162 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-10 02:50:48,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:50:48,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:50:48,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:50:48,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:50:48,166 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2019-09-10 02:50:48,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:48,166 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:50:48,166 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:50:48,166 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:50:48,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:50:48,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:50:48 BoogieIcfgContainer [2019-09-10 02:50:48,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:50:48,183 INFO L168 Benchmark]: Toolchain (without parser) took 4091.28 ms. Allocated memory was 133.7 MB in the beginning and 259.5 MB in the end (delta: 125.8 MB). Free memory was 88.7 MB in the beginning and 189.7 MB in the end (delta: -101.1 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:48,184 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:50:48,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.48 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 88.5 MB in the beginning and 166.1 MB in the end (delta: -77.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:48,188 INFO L168 Benchmark]: Boogie Preprocessor took 120.46 ms. Allocated memory is still 200.3 MB. Free memory was 166.1 MB in the beginning and 162.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:48,190 INFO L168 Benchmark]: RCFGBuilder took 1301.17 ms. Allocated memory was 200.3 MB in the beginning and 226.5 MB in the end (delta: 26.2 MB). Free memory was 161.3 MB in the beginning and 196.2 MB in the end (delta: -34.8 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:48,196 INFO L168 Benchmark]: TraceAbstraction took 2034.80 ms. Allocated memory was 226.5 MB in the beginning and 259.5 MB in the end (delta: 33.0 MB). Free memory was 196.2 MB in the beginning and 189.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:48,204 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 630.48 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 88.5 MB in the beginning and 166.1 MB in the end (delta: -77.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.46 ms. Allocated memory is still 200.3 MB. Free memory was 166.1 MB in the beginning and 162.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1301.17 ms. Allocated memory was 200.3 MB in the beginning and 226.5 MB in the end (delta: 26.2 MB). Free memory was 161.3 MB in the beginning and 196.2 MB in the end (delta: -34.8 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2034.80 ms. Allocated memory was 226.5 MB in the beginning and 259.5 MB in the end (delta: 33.0 MB). Free memory was 196.2 MB in the beginning and 189.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 585]: 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 38 procedures, 221 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 440 SDtfs, 200 SDslu, 460 SDs, 0 SdLazy, 279 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=0, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 251 ConstructedInterpolants, 0 QuantifiedInterpolants, 26654 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...