java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:52,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:52,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:52,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:52,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:52,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:52,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:52,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:52,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:52,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:52,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:52,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:52,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:52,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:52,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:52,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:52,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:52,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:52,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:52,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:52,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:52,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:52,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:52,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:52,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:52,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:52,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:52,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:52,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:52,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:52,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:52,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:52,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:52,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:52,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:52,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:52,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:52,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:52,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:52,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:52,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:52,295 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 13:29:52,316 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:52,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:52,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:52,316 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:52,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:52,318 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:52,318 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:52,318 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:52,319 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:52,319 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:52,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:52,321 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:52,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:52,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:52,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:52,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:52,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:52,323 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:52,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:52,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:52,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:52,324 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:52,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:52,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:52,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:52,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:52,325 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:52,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:52,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:52,326 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:52,378 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:52,393 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:52,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:52,398 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:52,398 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:52,399 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product06.cil.c [2019-09-20 13:29:52,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c364d2a25/2de73742e52b4476b3ee7ec782d819df/FLAG7b0bada76 [2019-09-20 13:29:53,073 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:53,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product06.cil.c [2019-09-20 13:29:53,090 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c364d2a25/2de73742e52b4476b3ee7ec782d819df/FLAG7b0bada76 [2019-09-20 13:29:53,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c364d2a25/2de73742e52b4476b3ee7ec782d819df [2019-09-20 13:29:53,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:53,395 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:53,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:53,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:53,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:53,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:53" (1/1) ... [2019-09-20 13:29:53,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425f21cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:53, skipping insertion in model container [2019-09-20 13:29:53,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:53" (1/1) ... [2019-09-20 13:29:53,413 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:53,477 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:53,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:53,952 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:54,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:54,079 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:54,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54 WrapperNode [2019-09-20 13:29:54,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:54,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:54,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:54,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:54,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:54,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:54,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:54,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:54,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:29:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:29:54,269 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:54,269 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:54,269 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:54,270 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:54,270 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:54,271 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:54,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:54,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:54,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:54,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:54,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:54,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:54,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:54,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:54,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:54,274 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:54,274 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:54,274 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:54,274 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:54,275 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:29:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:54,278 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:54,278 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:54,278 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:54,278 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:54,278 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:54,278 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:54,278 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:29:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:54,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:54,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:54,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:54,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:54,285 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:54,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:54,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:54,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:54,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:54,287 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:54,287 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:54,288 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:54,288 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:54,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:55,367 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:55,367 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:55,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:55 BoogieIcfgContainer [2019-09-20 13:29:55,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:55,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:55,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:55,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:55,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:53" (1/3) ... [2019-09-20 13:29:55,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62413bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:55, skipping insertion in model container [2019-09-20 13:29:55,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (2/3) ... [2019-09-20 13:29:55,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62413bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:55, skipping insertion in model container [2019-09-20 13:29:55,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:55" (3/3) ... [2019-09-20 13:29:55,379 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product06.cil.c [2019-09-20 13:29:55,389 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:55,398 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:55,416 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:55,446 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:55,446 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:55,446 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:55,447 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:55,447 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:55,447 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:55,447 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:55,447 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:55,472 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2019-09-20 13:29:55,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:29:55,487 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:55,488 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 13:29:55,491 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:55,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:55,517 INFO L82 PathProgramCache]: Analyzing trace with hash -790254398, now seen corresponding path program 1 times [2019-09-20 13:29:55,520 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:55,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:55,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,585 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:55,918 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 13:29:55,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:55,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:55,920 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:55,926 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:55,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:55,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:55,940 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2019-09-20 13:29:55,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:55,984 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2019-09-20 13:29:55,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:55,985 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:29:55,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:56,004 INFO L225 Difference]: With dead ends: 119 [2019-09-20 13:29:56,008 INFO L226 Difference]: Without dead ends: 108 [2019-09-20 13:29:56,012 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 13:29:56,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-09-20 13:29:56,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-09-20 13:29:56,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-09-20 13:29:56,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 126 transitions. [2019-09-20 13:29:56,119 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 126 transitions. Word has length 51 [2019-09-20 13:29:56,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:56,120 INFO L475 AbstractCegarLoop]: Abstraction has 108 states and 126 transitions. [2019-09-20 13:29:56,121 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:56,121 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 126 transitions. [2019-09-20 13:29:56,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:29:56,130 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:56,130 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:56,131 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:56,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:56,132 INFO L82 PathProgramCache]: Analyzing trace with hash 449036907, now seen corresponding path program 1 times [2019-09-20 13:29:56,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:56,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:56,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,138 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:56,338 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 13:29:56,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:56,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:56,339 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:56,341 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:56,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:56,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:56,343 INFO L87 Difference]: Start difference. First operand 108 states and 126 transitions. Second operand 3 states. [2019-09-20 13:29:56,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:56,374 INFO L93 Difference]: Finished difference Result 99 states and 114 transitions. [2019-09-20 13:29:56,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:56,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:29:56,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:56,379 INFO L225 Difference]: With dead ends: 99 [2019-09-20 13:29:56,379 INFO L226 Difference]: Without dead ends: 99 [2019-09-20 13:29:56,380 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 13:29:56,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-09-20 13:29:56,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-09-20 13:29:56,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-09-20 13:29:56,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 114 transitions. [2019-09-20 13:29:56,405 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 114 transitions. Word has length 52 [2019-09-20 13:29:56,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:56,405 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 114 transitions. [2019-09-20 13:29:56,405 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:56,406 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 114 transitions. [2019-09-20 13:29:56,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:29:56,412 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:56,413 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] [2019-09-20 13:29:56,413 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:56,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:56,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1483063984, now seen corresponding path program 1 times [2019-09-20 13:29:56,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:56,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:56,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,417 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:56,604 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 13:29:56,605 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:56,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:56,605 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:56,606 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:56,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:56,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:56,606 INFO L87 Difference]: Start difference. First operand 99 states and 114 transitions. Second operand 7 states. [2019-09-20 13:29:56,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:56,885 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2019-09-20 13:29:56,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:56,886 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:29:56,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:56,888 INFO L225 Difference]: With dead ends: 99 [2019-09-20 13:29:56,888 INFO L226 Difference]: Without dead ends: 99 [2019-09-20 13:29:56,888 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:29:56,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-09-20 13:29:56,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-09-20 13:29:56,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-09-20 13:29:56,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2019-09-20 13:29:56,898 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 57 [2019-09-20 13:29:56,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:56,900 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2019-09-20 13:29:56,900 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:56,901 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2019-09-20 13:29:56,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:29:56,903 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:56,904 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] [2019-09-20 13:29:56,904 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:56,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:56,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1934591269, now seen corresponding path program 1 times [2019-09-20 13:29:56,906 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:56,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:56,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,909 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:57,038 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 13:29:57,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:57,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:57,040 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:57,040 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:57,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:57,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:57,041 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 6 states. [2019-09-20 13:29:57,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:57,266 INFO L93 Difference]: Finished difference Result 162 states and 188 transitions. [2019-09-20 13:29:57,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:57,267 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-09-20 13:29:57,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:57,270 INFO L225 Difference]: With dead ends: 162 [2019-09-20 13:29:57,270 INFO L226 Difference]: Without dead ends: 162 [2019-09-20 13:29:57,271 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:57,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-09-20 13:29:57,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 160. [2019-09-20 13:29:57,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-09-20 13:29:57,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 186 transitions. [2019-09-20 13:29:57,286 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 186 transitions. Word has length 65 [2019-09-20 13:29:57,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:57,287 INFO L475 AbstractCegarLoop]: Abstraction has 160 states and 186 transitions. [2019-09-20 13:29:57,287 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:57,287 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 186 transitions. [2019-09-20 13:29:57,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-20 13:29:57,289 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:57,289 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 13:29:57,289 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:57,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:57,290 INFO L82 PathProgramCache]: Analyzing trace with hash 419141833, now seen corresponding path program 1 times [2019-09-20 13:29:57,290 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:57,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:57,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:57,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:57,293 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:57,384 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 13:29:57,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:57,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:57,384 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:57,385 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:57,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:57,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:57,386 INFO L87 Difference]: Start difference. First operand 160 states and 186 transitions. Second operand 7 states. [2019-09-20 13:29:57,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:57,716 INFO L93 Difference]: Finished difference Result 124 states and 137 transitions. [2019-09-20 13:29:57,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:57,716 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2019-09-20 13:29:57,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:57,717 INFO L225 Difference]: With dead ends: 124 [2019-09-20 13:29:57,717 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:57,718 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:29:57,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:57,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:57,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:57,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:57,719 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2019-09-20 13:29:57,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:57,719 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:57,719 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:57,719 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:57,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:57,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:57 BoogieIcfgContainer [2019-09-20 13:29:57,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:57,728 INFO L168 Benchmark]: Toolchain (without parser) took 4332.40 ms. Allocated memory was 130.0 MB in the beginning and 274.2 MB in the end (delta: 144.2 MB). Free memory was 85.1 MB in the beginning and 168.3 MB in the end (delta: -83.2 MB). Peak memory consumption was 61.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,729 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.73 ms. Allocated memory was 130.0 MB in the beginning and 198.7 MB in the end (delta: 68.7 MB). Free memory was 84.8 MB in the beginning and 163.8 MB in the end (delta: -79.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,731 INFO L168 Benchmark]: Boogie Preprocessor took 121.48 ms. Allocated memory is still 198.7 MB. Free memory was 163.8 MB in the beginning and 159.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,732 INFO L168 Benchmark]: RCFGBuilder took 1166.70 ms. Allocated memory is still 198.7 MB. Free memory was 159.8 MB in the beginning and 77.6 MB in the end (delta: 82.1 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,733 INFO L168 Benchmark]: TraceAbstraction took 2354.60 ms. Allocated memory was 198.7 MB in the beginning and 274.2 MB in the end (delta: 75.5 MB). Free memory was 76.9 MB in the beginning and 168.3 MB in the end (delta: -91.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:29:57,737 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 684.73 ms. Allocated memory was 130.0 MB in the beginning and 198.7 MB in the end (delta: 68.7 MB). Free memory was 84.8 MB in the beginning and 163.8 MB in the end (delta: -79.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.48 ms. Allocated memory is still 198.7 MB. Free memory was 163.8 MB in the beginning and 159.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1166.70 ms. Allocated memory is still 198.7 MB. Free memory was 159.8 MB in the beginning and 77.6 MB in the end (delta: 82.1 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2354.60 ms. Allocated memory was 198.7 MB in the beginning and 274.2 MB in the end (delta: 75.5 MB). Free memory was 76.9 MB in the beginning and 168.3 MB in the end (delta: -91.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 790]: 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 37 procedures, 213 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 550 SDtfs, 261 SDslu, 845 SDs, 0 SdLazy, 337 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=160occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 289 ConstructedInterpolants, 0 QuantifiedInterpolants, 31449 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...