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_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:48:53,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:48:53,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:48:53,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:48:53,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:48:53,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:48:53,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:48:53,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:48:53,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:48:53,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:48:53,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:48:53,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:48:53,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:48:53,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:48:53,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:48:53,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:48:53,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:48:53,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:48:53,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:48:53,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:48:53,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:48:53,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:48:53,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:48:53,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:48:53,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:48:53,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:48:53,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:48:53,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:48:53,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:48:53,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:48:53,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:48:53,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:48:53,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:48:53,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:48:53,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:48:53,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:48:53,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:48:53,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:48:53,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:48:53,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:48:53,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:48:53,497 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:48:53,512 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:48:53,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:48:53,513 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:48:53,513 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:48:53,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:48:53,514 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:48:53,514 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:48:53,514 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:48:53,514 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:48:53,515 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:48:53,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:48:53,515 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:48:53,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:48:53,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:48:53,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:48:53,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:48:53,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:48:53,517 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:48:53,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:48:53,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:48:53,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:48:53,517 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:48:53,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:48:53,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:53,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:48:53,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:48:53,518 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:48:53,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:48:53,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:48:53,519 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:48:53,547 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:48:53,560 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:48:53,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:48:53,565 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:48:53,565 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:48:53,566 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-09-10 02:48:53,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c75c8aa8/1aa5421788984ba9acc2ee834b019493/FLAGb03e78c60 [2019-09-10 02:48:54,182 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:48:54,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-09-10 02:48:54,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c75c8aa8/1aa5421788984ba9acc2ee834b019493/FLAGb03e78c60 [2019-09-10 02:48:54,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c75c8aa8/1aa5421788984ba9acc2ee834b019493 [2019-09-10 02:48:54,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:48:54,419 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:48:54,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:54,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:48:54,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:48:54,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:54" (1/1) ... [2019-09-10 02:48:54,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357a5375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:54, skipping insertion in model container [2019-09-10 02:48:54,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:54" (1/1) ... [2019-09-10 02:48:54,437 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:48:54,502 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:48:54,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:54,994 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:48:55,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:55,120 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:48:55,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:55 WrapperNode [2019-09-10 02:48:55,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:55,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:48:55,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:48:55,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:48:55,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:55" (1/1) ... [2019-09-10 02:48:55,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:55" (1/1) ... [2019-09-10 02:48:55,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:55" (1/1) ... [2019-09-10 02:48:55,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:55" (1/1) ... [2019-09-10 02:48:55,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:55" (1/1) ... [2019-09-10 02:48:55,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:55" (1/1) ... [2019-09-10 02:48:55,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:55" (1/1) ... [2019-09-10 02:48:55,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:48:55,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:48:55,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:48:55,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:48:55,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:55,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:48:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:48:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:48:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:48:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:48:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:48:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:48:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:48:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:48:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:48:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:48:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:48:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:48:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:48:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:48:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:48:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:48:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:48:55,299 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:48:55,299 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:48:55,299 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:48:55,299 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:48:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:48:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:48:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:48:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:48:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:48:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:48:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:48:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:48:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:48:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:48:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:48:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:48:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:48:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:48:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:48:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:48:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:48:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:48:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:48:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:48:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:48:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:48:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:48:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:48:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:48:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:48:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:48:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:48:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:48:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:48:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:48:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:48:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:48:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:48:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:48:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:48:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:48:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:48:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:48:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:48:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:48:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:48:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:48:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:48:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:48:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:48:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:48:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:48:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:48:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:48:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:48:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:48:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:48:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:48:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:48:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:48:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:48:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:48:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:48:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:48:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:48:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:48:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:48:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:48:56,356 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:48:56,357 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:48:56,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:56 BoogieIcfgContainer [2019-09-10 02:48:56,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:48:56,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:48:56,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:48:56,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:48:56,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:48:54" (1/3) ... [2019-09-10 02:48:56,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e852005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:56, skipping insertion in model container [2019-09-10 02:48:56,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:55" (2/3) ... [2019-09-10 02:48:56,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e852005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:56, skipping insertion in model container [2019-09-10 02:48:56,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:56" (3/3) ... [2019-09-10 02:48:56,367 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2019-09-10 02:48:56,377 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:48:56,387 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:48:56,403 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:48:56,437 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:48:56,437 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:48:56,438 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:48:56,438 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:48:56,439 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:48:56,439 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:48:56,439 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:48:56,440 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:48:56,470 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-09-10 02:48:56,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:48:56,482 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:56,483 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:56,486 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:56,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:56,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1742083297, now seen corresponding path program 1 times [2019-09-10 02:48:56,495 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:56,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:56,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:56,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:56,546 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:56,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:56,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:48:56,903 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:56,912 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:56,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:56,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:56,931 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 2 states. [2019-09-10 02:48:56,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:56,969 INFO L93 Difference]: Finished difference Result 148 states and 172 transitions. [2019-09-10 02:48:56,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:56,970 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-10 02:48:56,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:56,982 INFO L225 Difference]: With dead ends: 148 [2019-09-10 02:48:56,982 INFO L226 Difference]: Without dead ends: 137 [2019-09-10 02:48:56,984 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:57,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-09-10 02:48:57,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-09-10 02:48:57,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-09-10 02:48:57,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2019-09-10 02:48:57,078 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 51 [2019-09-10 02:48:57,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:57,079 INFO L475 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2019-09-10 02:48:57,079 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:57,079 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2019-09-10 02:48:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:48:57,088 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:57,089 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:57,089 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:57,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:57,090 INFO L82 PathProgramCache]: Analyzing trace with hash 604742129, now seen corresponding path program 1 times [2019-09-10 02:48:57,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:57,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:57,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:57,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:57,094 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:57,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:57,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:57,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:48:57,238 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:57,240 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:48:57,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:48:57,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:57,242 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand 3 states. [2019-09-10 02:48:57,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:57,265 INFO L93 Difference]: Finished difference Result 128 states and 148 transitions. [2019-09-10 02:48:57,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:48:57,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-10 02:48:57,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:57,269 INFO L225 Difference]: With dead ends: 128 [2019-09-10 02:48:57,269 INFO L226 Difference]: Without dead ends: 128 [2019-09-10 02:48:57,271 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:57,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-09-10 02:48:57,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-09-10 02:48:57,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-09-10 02:48:57,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2019-09-10 02:48:57,290 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 52 [2019-09-10 02:48:57,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:57,291 INFO L475 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2019-09-10 02:48:57,291 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:48:57,291 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2019-09-10 02:48:57,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:48:57,293 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:57,293 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:57,293 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:57,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:57,294 INFO L82 PathProgramCache]: Analyzing trace with hash -185652476, now seen corresponding path program 1 times [2019-09-10 02:48:57,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:57,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:57,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:57,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:57,295 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:57,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:57,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:57,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:57,437 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:57,438 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:57,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:57,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:57,439 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 7 states. [2019-09-10 02:48:57,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:57,801 INFO L93 Difference]: Finished difference Result 128 states and 147 transitions. [2019-09-10 02:48:57,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:48:57,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-10 02:48:57,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:57,804 INFO L225 Difference]: With dead ends: 128 [2019-09-10 02:48:57,804 INFO L226 Difference]: Without dead ends: 128 [2019-09-10 02:48:57,805 INFO L628 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 [2019-09-10 02:48:57,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-09-10 02:48:57,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-09-10 02:48:57,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-09-10 02:48:57,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2019-09-10 02:48:57,817 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 57 [2019-09-10 02:48:57,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:57,817 INFO L475 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2019-09-10 02:48:57,817 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:57,817 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2019-09-10 02:48:57,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 02:48:57,822 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:57,822 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:57,823 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:57,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:57,825 INFO L82 PathProgramCache]: Analyzing trace with hash -285076691, now seen corresponding path program 1 times [2019-09-10 02:48:57,825 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:57,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:57,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:57,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:57,827 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:58,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:58,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:58,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:48:58,027 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:58,027 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:48:58,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:48:58,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:48:58,028 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand 5 states. [2019-09-10 02:48:58,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:58,569 INFO L93 Difference]: Finished difference Result 229 states and 266 transitions. [2019-09-10 02:48:58,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:48:58,569 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-09-10 02:48:58,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:58,574 INFO L225 Difference]: With dead ends: 229 [2019-09-10 02:48:58,579 INFO L226 Difference]: Without dead ends: 229 [2019-09-10 02:48:58,580 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:48:58,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-09-10 02:48:58,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 210. [2019-09-10 02:48:58,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2019-09-10 02:48:58,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 240 transitions. [2019-09-10 02:48:58,617 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 240 transitions. Word has length 70 [2019-09-10 02:48:58,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:58,619 INFO L475 AbstractCegarLoop]: Abstraction has 210 states and 240 transitions. [2019-09-10 02:48:58,619 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:48:58,619 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 240 transitions. [2019-09-10 02:48:58,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 02:48:58,621 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:58,622 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:58,622 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:58,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:58,623 INFO L82 PathProgramCache]: Analyzing trace with hash -791027315, now seen corresponding path program 1 times [2019-09-10 02:48:58,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:58,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:58,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:58,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:58,625 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:58,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:58,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:58,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:58,740 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:58,740 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:58,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:58,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:58,741 INFO L87 Difference]: Start difference. First operand 210 states and 240 transitions. Second operand 6 states. [2019-09-10 02:48:58,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:58,944 INFO L93 Difference]: Finished difference Result 374 states and 427 transitions. [2019-09-10 02:48:58,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:58,946 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-09-10 02:48:58,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:58,952 INFO L225 Difference]: With dead ends: 374 [2019-09-10 02:48:58,952 INFO L226 Difference]: Without dead ends: 374 [2019-09-10 02:48:58,953 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:48:58,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2019-09-10 02:48:58,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 368. [2019-09-10 02:48:58,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2019-09-10 02:48:58,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 420 transitions. [2019-09-10 02:48:58,983 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 420 transitions. Word has length 84 [2019-09-10 02:48:58,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:58,983 INFO L475 AbstractCegarLoop]: Abstraction has 368 states and 420 transitions. [2019-09-10 02:48:58,984 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:58,984 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 420 transitions. [2019-09-10 02:48:58,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-10 02:48:58,985 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:58,986 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:58,986 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:58,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:58,986 INFO L82 PathProgramCache]: Analyzing trace with hash 474237417, now seen corresponding path program 1 times [2019-09-10 02:48:58,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:58,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:58,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:58,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:58,988 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:59,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:59,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:59,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:59,118 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:59,119 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:59,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:59,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:59,120 INFO L87 Difference]: Start difference. First operand 368 states and 420 transitions. Second operand 7 states. [2019-09-10 02:48:59,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:59,900 INFO L93 Difference]: Finished difference Result 399 states and 469 transitions. [2019-09-10 02:48:59,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:48:59,901 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2019-09-10 02:48:59,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:59,907 INFO L225 Difference]: With dead ends: 399 [2019-09-10 02:48:59,909 INFO L226 Difference]: Without dead ends: 399 [2019-09-10 02:48:59,909 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:48:59,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-09-10 02:48:59,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 367. [2019-09-10 02:48:59,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2019-09-10 02:48:59,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 417 transitions. [2019-09-10 02:48:59,950 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 417 transitions. Word has length 88 [2019-09-10 02:48:59,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:59,953 INFO L475 AbstractCegarLoop]: Abstraction has 367 states and 417 transitions. [2019-09-10 02:48:59,954 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:59,954 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 417 transitions. [2019-09-10 02:48:59,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:48:59,957 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:59,957 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:59,958 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:59,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:59,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1710786942, now seen corresponding path program 1 times [2019-09-10 02:48:59,959 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:59,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:59,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:59,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:59,964 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:00,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:00,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:00,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:49:00,076 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:00,077 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:49:00,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:49:00,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:49:00,078 INFO L87 Difference]: Start difference. First operand 367 states and 417 transitions. Second operand 6 states. [2019-09-10 02:49:00,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:00,114 INFO L93 Difference]: Finished difference Result 377 states and 427 transitions. [2019-09-10 02:49:00,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:49:00,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-09-10 02:49:00,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:00,118 INFO L225 Difference]: With dead ends: 377 [2019-09-10 02:49:00,118 INFO L226 Difference]: Without dead ends: 377 [2019-09-10 02:49:00,119 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:00,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-09-10 02:49:00,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2019-09-10 02:49:00,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-09-10 02:49:00,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 427 transitions. [2019-09-10 02:49:00,142 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 427 transitions. Word has length 89 [2019-09-10 02:49:00,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:00,143 INFO L475 AbstractCegarLoop]: Abstraction has 377 states and 427 transitions. [2019-09-10 02:49:00,143 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:49:00,143 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 427 transitions. [2019-09-10 02:49:00,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:49:00,146 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:00,146 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:00,147 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:00,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:00,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1009187068, now seen corresponding path program 1 times [2019-09-10 02:49:00,147 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:00,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:00,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:00,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:00,149 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:00,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:00,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:00,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:49:00,288 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:00,288 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:49:00,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:49:00,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:49:00,289 INFO L87 Difference]: Start difference. First operand 377 states and 427 transitions. Second operand 8 states. [2019-09-10 02:49:00,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:00,330 INFO L93 Difference]: Finished difference Result 391 states and 441 transitions. [2019-09-10 02:49:00,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:49:00,333 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2019-09-10 02:49:00,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:00,336 INFO L225 Difference]: With dead ends: 391 [2019-09-10 02:49:00,336 INFO L226 Difference]: Without dead ends: 391 [2019-09-10 02:49:00,337 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:49:00,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-09-10 02:49:00,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 385. [2019-09-10 02:49:00,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2019-09-10 02:49:00,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 435 transitions. [2019-09-10 02:49:00,355 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 435 transitions. Word has length 89 [2019-09-10 02:49:00,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:00,355 INFO L475 AbstractCegarLoop]: Abstraction has 385 states and 435 transitions. [2019-09-10 02:49:00,356 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:49:00,356 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 435 transitions. [2019-09-10 02:49:00,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:49:00,358 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:00,359 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:00,359 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:00,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:00,363 INFO L82 PathProgramCache]: Analyzing trace with hash 716293829, now seen corresponding path program 1 times [2019-09-10 02:49:00,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:00,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:00,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:00,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:00,365 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:00,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:00,498 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:00,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:49:00,498 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:00,499 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:49:00,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:49:00,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:49:00,500 INFO L87 Difference]: Start difference. First operand 385 states and 435 transitions. Second operand 4 states. [2019-09-10 02:49:00,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:00,695 INFO L93 Difference]: Finished difference Result 805 states and 951 transitions. [2019-09-10 02:49:00,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:49:00,695 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2019-09-10 02:49:00,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:00,700 INFO L225 Difference]: With dead ends: 805 [2019-09-10 02:49:00,700 INFO L226 Difference]: Without dead ends: 805 [2019-09-10 02:49:00,701 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:49:00,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2019-09-10 02:49:00,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 517. [2019-09-10 02:49:00,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2019-09-10 02:49:00,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 580 transitions. [2019-09-10 02:49:00,727 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 580 transitions. Word has length 89 [2019-09-10 02:49:00,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:00,728 INFO L475 AbstractCegarLoop]: Abstraction has 517 states and 580 transitions. [2019-09-10 02:49:00,728 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:49:00,728 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 580 transitions. [2019-09-10 02:49:00,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 02:49:00,730 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:00,730 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:00,730 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:00,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:00,731 INFO L82 PathProgramCache]: Analyzing trace with hash -7624597, now seen corresponding path program 1 times [2019-09-10 02:49:00,731 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:00,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:00,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:00,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:00,732 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:00,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:00,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:00,804 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:00,804 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:00,805 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:00,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:00,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:00,805 INFO L87 Difference]: Start difference. First operand 517 states and 580 transitions. Second operand 3 states. [2019-09-10 02:49:00,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:00,835 INFO L93 Difference]: Finished difference Result 793 states and 904 transitions. [2019-09-10 02:49:00,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:00,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2019-09-10 02:49:00,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:00,839 INFO L225 Difference]: With dead ends: 793 [2019-09-10 02:49:00,839 INFO L226 Difference]: Without dead ends: 793 [2019-09-10 02:49:00,840 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 02:49:00,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2019-09-10 02:49:00,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 662. [2019-09-10 02:49:00,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2019-09-10 02:49:00,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 753 transitions. [2019-09-10 02:49:00,864 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 753 transitions. Word has length 93 [2019-09-10 02:49:00,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:00,865 INFO L475 AbstractCegarLoop]: Abstraction has 662 states and 753 transitions. [2019-09-10 02:49:00,865 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:00,865 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 753 transitions. [2019-09-10 02:49:00,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-09-10 02:49:00,869 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:00,869 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:00,869 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:00,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:00,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1116069495, now seen corresponding path program 1 times [2019-09-10 02:49:00,870 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:00,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:00,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:00,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:00,871 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:01,015 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-09-10 02:49:01,016 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:49:01,016 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:49:01,017 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2019-09-10 02:49:01,035 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [159], [161], [164], [167], [169], [175], [178], [190], [192], [195], [197], [200], [203], [206], [214], [215], [216], [226], [227], [230], [232], [237], [239], [240], [246], [250], [256], [283], [284], [294], [297], [299], [302], [312], [315], [319], [320], [323], [324], [325], [419], [420], [425], [427], [430], [438], [439], [440], [441], [442], [443], [444], [445], [446], [486], [487], [488], [489], [490], [491], [494], [495], [498], [499], [500], [501], [502], [504], [505], [508], [509], [510], [511], [516], [517], [518], [519], [526], [527], [528], [536], [537], [538] [2019-09-10 02:49:01,098 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:49:01,098 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:49:01,174 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:49:01,176 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 71 root evaluator evaluations with a maximum evaluation depth of 0. Performed 71 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-10 02:49:01,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:01,182 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:49:01,254 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:49:01,254 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:49:01,260 INFO L420 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2019-09-10 02:49:01,260 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:49:01,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:49:01,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 02:49:01,262 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:01,262 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:01,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:01,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:01,264 INFO L87 Difference]: Start difference. First operand 662 states and 753 transitions. Second operand 2 states. [2019-09-10 02:49:01,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:01,265 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:49:01,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:01,265 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-09-10 02:49:01,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:01,266 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:49:01,266 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:49:01,267 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 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 02:49:01,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:49:01,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:49:01,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:49:01,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:49:01,270 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2019-09-10 02:49:01,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:01,270 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:49:01,270 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:01,270 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:49:01,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:49:01,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:49:01 BoogieIcfgContainer [2019-09-10 02:49:01,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:49:01,280 INFO L168 Benchmark]: Toolchain (without parser) took 6860.48 ms. Allocated memory was 141.6 MB in the beginning and 298.3 MB in the end (delta: 156.8 MB). Free memory was 87.2 MB in the beginning and 80.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 163.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:01,281 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:49:01,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.80 ms. Allocated memory was 141.6 MB in the beginning and 201.3 MB in the end (delta: 59.8 MB). Free memory was 87.0 MB in the beginning and 166.9 MB in the end (delta: -80.0 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:01,286 INFO L168 Benchmark]: Boogie Preprocessor took 112.40 ms. Allocated memory is still 201.3 MB. Free memory was 166.9 MB in the beginning and 162.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:01,295 INFO L168 Benchmark]: RCFGBuilder took 1123.91 ms. Allocated memory was 201.3 MB in the beginning and 229.6 MB in the end (delta: 28.3 MB). Free memory was 162.3 MB in the beginning and 194.7 MB in the end (delta: -32.5 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:01,296 INFO L168 Benchmark]: TraceAbstraction took 4918.08 ms. Allocated memory was 229.6 MB in the beginning and 298.3 MB in the end (delta: 68.7 MB). Free memory was 193.4 MB in the beginning and 80.1 MB in the end (delta: 113.2 MB). Peak memory consumption was 181.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:01,306 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 701.80 ms. Allocated memory was 141.6 MB in the beginning and 201.3 MB in the end (delta: 59.8 MB). Free memory was 87.0 MB in the beginning and 166.9 MB in the end (delta: -80.0 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.40 ms. Allocated memory is still 201.3 MB. Free memory was 166.9 MB in the beginning and 162.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1123.91 ms. Allocated memory was 201.3 MB in the beginning and 229.6 MB in the end (delta: 28.3 MB). Free memory was 162.3 MB in the beginning and 194.7 MB in the end (delta: -32.5 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4918.08 ms. Allocated memory was 229.6 MB in the beginning and 298.3 MB in the end (delta: 68.7 MB). Free memory was 193.4 MB in the beginning and 80.1 MB in the end (delta: 113.2 MB). Peak memory consumption was 181.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 976]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 244 locations, 1 error locations. SAFE Result, 4.8s OverallTime, 11 OverallIterations, 2 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1590 SDtfs, 1007 SDslu, 3095 SDs, 0 SdLazy, 1041 SolverSat, 283 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=662occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8741721854304636 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 482 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 914 NumberOfCodeBlocks, 914 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 903 ConstructedInterpolants, 0 QuantifiedInterpolants, 131187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 49/55 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...