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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:06,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:06,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:06,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:06,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:06,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:06,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:06,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:06,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:06,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:06,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:06,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:06,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:06,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:06,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:06,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:06,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:06,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:06,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:06,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:06,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:06,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:06,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:06,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:06,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:06,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:06,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:06,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:06,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:06,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:06,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:06,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:06,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:06,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:06,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:06,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:06,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:06,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:06,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:06,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:06,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:06,475 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 13:30:06,489 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:06,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:06,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:06,490 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:06,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:06,491 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:06,491 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:06,492 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:06,492 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:06,492 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:06,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:06,493 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:06,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:06,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:06,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:06,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:06,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:06,494 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:06,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:06,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:06,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:06,495 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:06,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:06,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:06,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:06,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:06,496 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:06,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:06,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:06,497 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:06,524 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:06,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:06,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:06,543 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:06,544 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:06,545 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product31.cil.c [2019-09-20 13:30:06,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7adc1fc0/4ddd795caff24780a26a6c6bf8bd6901/FLAG111836522 [2019-09-20 13:30:07,154 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:07,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product31.cil.c [2019-09-20 13:30:07,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7adc1fc0/4ddd795caff24780a26a6c6bf8bd6901/FLAG111836522 [2019-09-20 13:30:07,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7adc1fc0/4ddd795caff24780a26a6c6bf8bd6901 [2019-09-20 13:30:07,451 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:07,453 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:07,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:07,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:07,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:07,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d74bca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07, skipping insertion in model container [2019-09-20 13:30:07,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,470 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:07,531 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:08,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:08,043 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:08,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:08,181 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:08,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:08 WrapperNode [2019-09-20 13:30:08,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:08,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:08,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:08,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:08,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:08" (1/1) ... [2019-09-20 13:30:08,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:08" (1/1) ... [2019-09-20 13:30:08,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:08" (1/1) ... [2019-09-20 13:30:08,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:08" (1/1) ... [2019-09-20 13:30:08,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:08" (1/1) ... [2019-09-20 13:30:08,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:08" (1/1) ... [2019-09-20 13:30:08,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:08" (1/1) ... [2019-09-20 13:30:08,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:08,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:08,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:08,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:08,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:08" (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 13:30:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:08,362 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:08,362 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:08,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:08,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:08,364 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:30:08,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:08,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:08,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:08,366 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:08,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:08,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:08,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:08,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:08,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:08,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:08,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:08,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:08,369 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:08,369 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:08,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:08,369 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:08,369 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:08,369 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:08,370 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:08,370 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:08,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:08,370 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:08,371 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:08,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:30:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:09,665 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:09,665 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:09,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:09 BoogieIcfgContainer [2019-09-20 13:30:09,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:09,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:09,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:09,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:09,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:07" (1/3) ... [2019-09-20 13:30:09,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5f2c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:09, skipping insertion in model container [2019-09-20 13:30:09,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:08" (2/3) ... [2019-09-20 13:30:09,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5f2c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:09, skipping insertion in model container [2019-09-20 13:30:09,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:09" (3/3) ... [2019-09-20 13:30:09,677 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product31.cil.c [2019-09-20 13:30:09,687 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:09,701 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:09,714 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:09,737 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:09,737 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:09,737 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:09,738 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:09,738 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:09,738 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:09,738 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:09,739 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:09,759 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states. [2019-09-20 13:30:09,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:09,772 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:09,773 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 13:30:09,776 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:09,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:09,781 INFO L82 PathProgramCache]: Analyzing trace with hash -83384634, now seen corresponding path program 1 times [2019-09-20 13:30:09,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:09,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:09,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:09,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:09,838 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:10,131 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 13:30:10,133 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:10,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:10,134 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:10,140 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:10,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:10,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:10,158 INFO L87 Difference]: Start difference. First operand 181 states. Second operand 2 states. [2019-09-20 13:30:10,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:10,188 INFO L93 Difference]: Finished difference Result 141 states and 167 transitions. [2019-09-20 13:30:10,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:10,190 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:10,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:10,203 INFO L225 Difference]: With dead ends: 141 [2019-09-20 13:30:10,203 INFO L226 Difference]: Without dead ends: 130 [2019-09-20 13:30:10,205 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 13:30:10,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-09-20 13:30:10,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2019-09-20 13:30:10,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-09-20 13:30:10,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 155 transitions. [2019-09-20 13:30:10,256 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 155 transitions. Word has length 51 [2019-09-20 13:30:10,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:10,257 INFO L475 AbstractCegarLoop]: Abstraction has 130 states and 155 transitions. [2019-09-20 13:30:10,257 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:10,257 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 155 transitions. [2019-09-20 13:30:10,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:10,261 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:10,261 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 13:30:10,261 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:10,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:10,262 INFO L82 PathProgramCache]: Analyzing trace with hash -38187558, now seen corresponding path program 1 times [2019-09-20 13:30:10,262 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:10,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:10,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:10,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:10,265 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:10,394 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 13:30:10,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:10,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:10,395 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:10,398 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:10,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:10,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:10,400 INFO L87 Difference]: Start difference. First operand 130 states and 155 transitions. Second operand 3 states. [2019-09-20 13:30:10,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:10,429 INFO L93 Difference]: Finished difference Result 121 states and 143 transitions. [2019-09-20 13:30:10,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:10,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:10,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:10,435 INFO L225 Difference]: With dead ends: 121 [2019-09-20 13:30:10,435 INFO L226 Difference]: Without dead ends: 121 [2019-09-20 13:30:10,436 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 13:30:10,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-09-20 13:30:10,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-09-20 13:30:10,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-09-20 13:30:10,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 143 transitions. [2019-09-20 13:30:10,463 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 143 transitions. Word has length 52 [2019-09-20 13:30:10,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:10,464 INFO L475 AbstractCegarLoop]: Abstraction has 121 states and 143 transitions. [2019-09-20 13:30:10,464 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:10,464 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 143 transitions. [2019-09-20 13:30:10,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-20 13:30:10,473 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:10,473 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] [2019-09-20 13:30:10,473 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:10,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:10,474 INFO L82 PathProgramCache]: Analyzing trace with hash -47793526, now seen corresponding path program 1 times [2019-09-20 13:30:10,474 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:10,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:10,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:10,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:10,480 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:10,618 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 13:30:10,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:10,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:10,619 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:10,619 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:10,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:10,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:10,620 INFO L87 Difference]: Start difference. First operand 121 states and 143 transitions. Second operand 7 states. [2019-09-20 13:30:11,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:11,186 INFO L93 Difference]: Finished difference Result 265 states and 322 transitions. [2019-09-20 13:30:11,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:11,187 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-20 13:30:11,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:11,196 INFO L225 Difference]: With dead ends: 265 [2019-09-20 13:30:11,196 INFO L226 Difference]: Without dead ends: 265 [2019-09-20 13:30:11,200 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 13:30:11,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2019-09-20 13:30:11,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 257. [2019-09-20 13:30:11,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2019-09-20 13:30:11,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 316 transitions. [2019-09-20 13:30:11,257 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 316 transitions. Word has length 56 [2019-09-20 13:30:11,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:11,258 INFO L475 AbstractCegarLoop]: Abstraction has 257 states and 316 transitions. [2019-09-20 13:30:11,258 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:11,261 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 316 transitions. [2019-09-20 13:30:11,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:30:11,264 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:11,264 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] [2019-09-20 13:30:11,265 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:11,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:11,268 INFO L82 PathProgramCache]: Analyzing trace with hash -670381442, now seen corresponding path program 1 times [2019-09-20 13:30:11,268 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:11,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:11,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:11,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:11,293 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:11,448 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 13:30:11,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:11,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:11,449 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:11,449 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:11,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:11,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:11,450 INFO L87 Difference]: Start difference. First operand 257 states and 316 transitions. Second operand 6 states. [2019-09-20 13:30:11,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:11,673 INFO L93 Difference]: Finished difference Result 468 states and 578 transitions. [2019-09-20 13:30:11,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:11,676 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-20 13:30:11,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:11,682 INFO L225 Difference]: With dead ends: 468 [2019-09-20 13:30:11,683 INFO L226 Difference]: Without dead ends: 468 [2019-09-20 13:30:11,684 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 13:30:11,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-09-20 13:30:11,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 462. [2019-09-20 13:30:11,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2019-09-20 13:30:11,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 572 transitions. [2019-09-20 13:30:11,722 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 572 transitions. Word has length 62 [2019-09-20 13:30:11,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:11,722 INFO L475 AbstractCegarLoop]: Abstraction has 462 states and 572 transitions. [2019-09-20 13:30:11,723 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:11,723 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 572 transitions. [2019-09-20 13:30:11,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-20 13:30:11,728 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:11,728 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] [2019-09-20 13:30:11,729 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:11,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:11,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1429119450, now seen corresponding path program 1 times [2019-09-20 13:30:11,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:11,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:11,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:11,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:11,732 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:11,834 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 13:30:11,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:11,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:11,834 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:11,835 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:11,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:11,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:11,836 INFO L87 Difference]: Start difference. First operand 462 states and 572 transitions. Second operand 7 states. [2019-09-20 13:30:12,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:12,165 INFO L93 Difference]: Finished difference Result 314 states and 361 transitions. [2019-09-20 13:30:12,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:12,166 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-09-20 13:30:12,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:12,167 INFO L225 Difference]: With dead ends: 314 [2019-09-20 13:30:12,167 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:12,168 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 13:30:12,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:12,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:12,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:12,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:12,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2019-09-20 13:30:12,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:12,171 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:12,171 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:12,171 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:12,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:12,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:12 BoogieIcfgContainer [2019-09-20 13:30:12,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:12,181 INFO L168 Benchmark]: Toolchain (without parser) took 4726.46 ms. Allocated memory was 132.6 MB in the beginning and 261.6 MB in the end (delta: 129.0 MB). Free memory was 85.7 MB in the beginning and 110.3 MB in the end (delta: -24.6 MB). Peak memory consumption was 104.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:12,182 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 132.6 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:12,184 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.69 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 85.5 MB in the beginning and 163.6 MB in the end (delta: -78.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:12,186 INFO L168 Benchmark]: Boogie Preprocessor took 99.82 ms. Allocated memory is still 199.8 MB. Free memory was 163.6 MB in the beginning and 159.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:12,188 INFO L168 Benchmark]: RCFGBuilder took 1383.73 ms. Allocated memory was 199.8 MB in the beginning and 223.3 MB in the end (delta: 23.6 MB). Free memory was 159.3 MB in the beginning and 189.6 MB in the end (delta: -30.3 MB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:12,189 INFO L168 Benchmark]: TraceAbstraction took 2508.51 ms. Allocated memory was 223.3 MB in the beginning and 261.6 MB in the end (delta: 38.3 MB). Free memory was 189.6 MB in the beginning and 110.3 MB in the end (delta: 79.3 MB). Peak memory consumption was 117.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:12,201 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 132.6 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.69 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 85.5 MB in the beginning and 163.6 MB in the end (delta: -78.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.82 ms. Allocated memory is still 199.8 MB. Free memory was 163.6 MB in the beginning and 159.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1383.73 ms. Allocated memory was 199.8 MB in the beginning and 223.3 MB in the end (delta: 23.6 MB). Free memory was 159.3 MB in the beginning and 189.6 MB in the end (delta: -30.3 MB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2508.51 ms. Allocated memory was 223.3 MB in the beginning and 261.6 MB in the end (delta: 38.3 MB). Free memory was 189.6 MB in the beginning and 110.3 MB in the end (delta: 79.3 MB). Peak memory consumption was 117.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 116]: 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 41 procedures, 242 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 726 SDtfs, 429 SDslu, 1387 SDs, 0 SdLazy, 467 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s 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=462occurred 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, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 287 NumberOfCodeBlocks, 287 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 29734 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...