/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:05:31,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:05:31,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:05:31,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:05:31,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:05:31,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:05:31,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:05:31,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:05:31,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:05:31,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:05:31,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:05:31,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:05:31,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:05:31,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:05:31,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:05:31,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:05:31,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:05:31,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:05:31,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:05:31,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:05:31,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:05:31,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:05:31,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:05:31,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:05:31,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:05:31,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:05:31,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:05:31,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:05:31,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:05:31,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:05:31,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:05:31,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:05:31,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:05:31,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:05:31,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:05:31,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:05:31,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:05:31,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:05:31,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:05:31,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:05:31,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:05:31,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:05:31,414 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:05:31,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:05:31,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:05:31,417 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:05:31,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:05:31,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:05:31,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:05:31,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:05:31,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:05:31,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:05:31,418 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:05:31,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:05:31,418 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:05:31,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:05:31,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:05:31,419 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:05:31,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:05:31,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:05:31,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:05:31,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:05:31,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:05:31,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:05:31,421 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:05:31,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:05:31,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:05:31,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:05:31,952 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:05:31,953 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:05:31,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c [2020-10-23 20:05:32,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1917148b/9b5ba61e34bc49b899526ef226a76c5f/FLAG97d1b68a2 [2020-10-23 20:05:32,973 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:05:32,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c [2020-10-23 20:05:33,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1917148b/9b5ba61e34bc49b899526ef226a76c5f/FLAG97d1b68a2 [2020-10-23 20:05:33,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1917148b/9b5ba61e34bc49b899526ef226a76c5f [2020-10-23 20:05:33,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:05:33,252 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:05:33,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:05:33,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:05:33,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:05:33,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:05:33" (1/1) ... [2020-10-23 20:05:33,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f102c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:33, skipping insertion in model container [2020-10-23 20:05:33,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:05:33" (1/1) ... [2020-10-23 20:05:33,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:05:33,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:05:33,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:05:33,910 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:05:34,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:05:34,155 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:05:34,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:34 WrapperNode [2020-10-23 20:05:34,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:05:34,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:05:34,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:05:34,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:05:34,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:34" (1/1) ... [2020-10-23 20:05:34,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:34" (1/1) ... [2020-10-23 20:05:34,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:34" (1/1) ... [2020-10-23 20:05:34,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:34" (1/1) ... [2020-10-23 20:05:34,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:34" (1/1) ... [2020-10-23 20:05:34,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:34" (1/1) ... [2020-10-23 20:05:34,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:34" (1/1) ... [2020-10-23 20:05:34,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:05:34,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:05:34,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:05:34,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:05:34,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:34" (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 [2020-10-23 20:05:34,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:05:34,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:05:34,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:05:34,484 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:05:34,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:05:34,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:05:34,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:05:34,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:05:34,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:05:34,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:05:34,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:05:34,485 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:05:34,486 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:05:34,486 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:05:34,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:05:34,486 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:05:34,487 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:05:34,487 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:05:34,487 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:05:34,487 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:05:34,487 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:05:34,488 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:05:34,488 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:05:34,488 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:05:34,488 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:05:34,488 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 20:05:34,489 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:05:34,489 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:05:34,489 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:05:34,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:05:34,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:05:34,490 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:05:34,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:05:34,490 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:05:34,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:05:34,491 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:05:34,491 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:05:34,491 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:05:34,491 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:05:34,491 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:05:34,492 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:05:34,492 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:05:34,492 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:05:34,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:05:34,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:05:34,493 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:05:34,493 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:05:34,493 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:05:34,493 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:05:34,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:05:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:05:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:05:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:05:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:05:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:05:34,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:05:34,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:05:34,495 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:05:34,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:05:34,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:05:34,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:05:34,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:05:34,496 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:05:34,497 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:05:34,497 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:05:34,497 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:05:34,497 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:05:34,498 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:05:34,498 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:05:34,498 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:05:34,498 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:05:34,498 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:05:34,499 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:05:34,499 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:05:34,499 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:05:34,499 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:05:34,499 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:05:34,500 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:05:34,500 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:05:34,500 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:05:34,500 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:05:34,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:05:34,501 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:05:34,501 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:05:34,501 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:05:34,501 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 20:05:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:05:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:05:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:05:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:05:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:05:34,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:05:34,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:05:34,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:05:36,389 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:05:36,390 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:05:36,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:05:36 BoogieIcfgContainer [2020-10-23 20:05:36,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:05:36,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:05:36,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:05:36,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:05:36,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:05:33" (1/3) ... [2020-10-23 20:05:36,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2941b957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:05:36, skipping insertion in model container [2020-10-23 20:05:36,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:34" (2/3) ... [2020-10-23 20:05:36,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2941b957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:05:36, skipping insertion in model container [2020-10-23 20:05:36,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:05:36" (3/3) ... [2020-10-23 20:05:36,406 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product23.cil.c [2020-10-23 20:05:36,420 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:05:36,433 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:05:36,451 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:05:36,493 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:05:36,493 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:05:36,493 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:05:36,494 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:05:36,494 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:05:36,494 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:05:36,494 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:05:36,494 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:05:36,522 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-10-23 20:05:36,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:05:36,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:36,547 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:05:36,548 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:05:36,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:36,557 INFO L82 PathProgramCache]: Analyzing trace with hash -511858583, now seen corresponding path program 1 times [2020-10-23 20:05:36,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:36,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2058982896] [2020-10-23 20:05:36,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:36,651 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:05:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:37,631 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:05:37,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:05:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:37,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:05:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:37,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:05:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:37,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:05:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:37,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:05:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:37,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:05:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:37,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:05:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:05:37,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2058982896] [2020-10-23 20:05:37,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:05:37,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:05:37,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890367461] [2020-10-23 20:05:37,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:05:37,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:05:37,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:05:37,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:05:37,972 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 3 states. [2020-10-23 20:05:39,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:05:39,941 INFO L93 Difference]: Finished difference Result 489 states and 584 transitions. [2020-10-23 20:05:39,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:05:39,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:05:39,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:05:39,961 INFO L225 Difference]: With dead ends: 489 [2020-10-23 20:05:39,962 INFO L226 Difference]: Without dead ends: 304 [2020-10-23 20:05:39,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:05:39,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-10-23 20:05:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 261. [2020-10-23 20:05:40,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-23 20:05:40,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 284 transitions. [2020-10-23 20:05:40,128 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 284 transitions. Word has length 148 [2020-10-23 20:05:40,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:05:40,129 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 284 transitions. [2020-10-23 20:05:40,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:05:40,129 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 284 transitions. [2020-10-23 20:05:40,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:05:40,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:40,135 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:05:40,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:05:40,136 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:05:40,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:40,136 INFO L82 PathProgramCache]: Analyzing trace with hash 127427403, now seen corresponding path program 1 times [2020-10-23 20:05:40,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:40,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457748663] [2020-10-23 20:05:40,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:40,142 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:05:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:40,590 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:05:40,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:05:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:40,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:05:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:40,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:05:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:40,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:05:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:40,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:05:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:40,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:05:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:40,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:05:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:05:40,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457748663] [2020-10-23 20:05:40,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:05:40,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:05:40,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649284415] [2020-10-23 20:05:40,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:05:40,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:05:40,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:05:40,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:05:40,705 INFO L87 Difference]: Start difference. First operand 261 states and 284 transitions. Second operand 4 states. [2020-10-23 20:05:41,456 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:05:42,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:05:42,549 INFO L93 Difference]: Finished difference Result 397 states and 447 transitions. [2020-10-23 20:05:42,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:05:42,549 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:05:42,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:05:42,554 INFO L225 Difference]: With dead ends: 397 [2020-10-23 20:05:42,554 INFO L226 Difference]: Without dead ends: 287 [2020-10-23 20:05:42,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:05:42,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-23 20:05:42,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 251. [2020-10-23 20:05:42,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-23 20:05:42,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 271 transitions. [2020-10-23 20:05:42,677 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 271 transitions. Word has length 149 [2020-10-23 20:05:42,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:05:42,679 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 271 transitions. [2020-10-23 20:05:42,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:05:42,679 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 271 transitions. [2020-10-23 20:05:42,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:05:42,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:42,685 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:05:42,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:05:42,686 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:05:42,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:42,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1557519730, now seen corresponding path program 1 times [2020-10-23 20:05:42,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:42,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248684776] [2020-10-23 20:05:42,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:42,695 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:05:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:43,218 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:05:43,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:05:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:43,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:05:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:43,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:05:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:43,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:05:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:43,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:05:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:43,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:05:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:43,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:05:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:43,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:05:43,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248684776] [2020-10-23 20:05:43,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:05:43,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:05:43,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718785770] [2020-10-23 20:05:43,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:05:43,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:05:43,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:05:43,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:05:43,464 INFO L87 Difference]: Start difference. First operand 251 states and 271 transitions. Second operand 9 states. [2020-10-23 20:05:44,050 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:05:44,429 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:05:44,750 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:05:45,072 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:05:45,390 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:45,716 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:05:46,787 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:05:49,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:05:49,208 INFO L93 Difference]: Finished difference Result 655 states and 755 transitions. [2020-10-23 20:05:49,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:05:49,211 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:05:49,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:05:49,216 INFO L225 Difference]: With dead ends: 655 [2020-10-23 20:05:49,217 INFO L226 Difference]: Without dead ends: 519 [2020-10-23 20:05:49,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:05:49,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2020-10-23 20:05:49,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 450. [2020-10-23 20:05:49,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-10-23 20:05:49,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 504 transitions. [2020-10-23 20:05:49,476 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 504 transitions. Word has length 158 [2020-10-23 20:05:49,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:05:49,477 INFO L481 AbstractCegarLoop]: Abstraction has 450 states and 504 transitions. [2020-10-23 20:05:49,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:05:49,477 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 504 transitions. [2020-10-23 20:05:49,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:05:49,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:49,481 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:05:49,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:05:49,482 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:05:49,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:49,483 INFO L82 PathProgramCache]: Analyzing trace with hash 275599, now seen corresponding path program 1 times [2020-10-23 20:05:49,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:49,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241712115] [2020-10-23 20:05:49,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:49,487 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:05:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:49,894 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:05:49,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:05:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:49,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:05:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:49,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:05:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:49,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:05:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:50,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:05:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:50,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:05:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:50,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:05:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:50,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:05:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:50,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:05:50,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241712115] [2020-10-23 20:05:50,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:05:50,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:05:50,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178131800] [2020-10-23 20:05:50,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:05:50,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:05:50,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:05:50,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:05:50,120 INFO L87 Difference]: Start difference. First operand 450 states and 504 transitions. Second operand 14 states. [2020-10-23 20:05:50,707 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:05:51,107 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:05:51,432 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:05:51,762 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:05:52,048 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:52,321 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:05:53,044 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:05:54,430 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:05:54,836 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:55,384 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:55,792 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:05:56,074 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:05:56,377 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:05:56,720 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:05:56,999 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:57,312 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:05:57,770 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:58,183 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:05:58,532 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:05:58,840 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:00,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:00,510 INFO L93 Difference]: Finished difference Result 1537 states and 1878 transitions. [2020-10-23 20:06:00,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:06:00,511 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 20:06:00,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:00,521 INFO L225 Difference]: With dead ends: 1537 [2020-10-23 20:06:00,521 INFO L226 Difference]: Without dead ends: 1202 [2020-10-23 20:06:00,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:06:00,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2020-10-23 20:06:01,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1059. [2020-10-23 20:06:01,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1059 states. [2020-10-23 20:06:01,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1227 transitions. [2020-10-23 20:06:01,036 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1227 transitions. Word has length 167 [2020-10-23 20:06:01,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:01,037 INFO L481 AbstractCegarLoop]: Abstraction has 1059 states and 1227 transitions. [2020-10-23 20:06:01,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:06:01,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1227 transitions. [2020-10-23 20:06:01,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 20:06:01,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:01,042 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:06:01,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:06:01,043 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:06:01,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:01,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1005327036, now seen corresponding path program 1 times [2020-10-23 20:06:01,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:01,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162248602] [2020-10-23 20:06:01,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:01,047 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:06:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:01,346 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:01,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:01,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:01,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:01,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:01,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:01,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:06:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:01,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:06:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:01,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:06:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:01,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 20:06:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:01,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:06:01,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162248602] [2020-10-23 20:06:01,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:01,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:06:01,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315888407] [2020-10-23 20:06:01,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:06:01,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:01,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:06:01,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:06:01,528 INFO L87 Difference]: Start difference. First operand 1059 states and 1227 transitions. Second operand 6 states. [2020-10-23 20:06:02,088 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:06:03,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:03,167 INFO L93 Difference]: Finished difference Result 1652 states and 1974 transitions. [2020-10-23 20:06:03,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 20:06:03,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-10-23 20:06:03,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:03,176 INFO L225 Difference]: With dead ends: 1652 [2020-10-23 20:06:03,176 INFO L226 Difference]: Without dead ends: 708 [2020-10-23 20:06:03,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:06:03,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-10-23 20:06:03,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 674. [2020-10-23 20:06:03,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 674 states. [2020-10-23 20:06:03,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 733 transitions. [2020-10-23 20:06:03,528 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 733 transitions. Word has length 172 [2020-10-23 20:06:03,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:03,529 INFO L481 AbstractCegarLoop]: Abstraction has 674 states and 733 transitions. [2020-10-23 20:06:03,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:06:03,529 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 733 transitions. [2020-10-23 20:06:03,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 20:06:03,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:03,535 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:06:03,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:06:03,536 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:06:03,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:03,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1437429676, now seen corresponding path program 1 times [2020-10-23 20:06:03,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:03,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275045285] [2020-10-23 20:06:03,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:03,670 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:06:03,947 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:06:04,142 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:06:04,331 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:06:04,520 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:06:04,710 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:06:04,905 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:06:05,093 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:06:05,293 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:06:05,485 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:06:05,679 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:06:05,881 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:06:06,088 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:06:06,300 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:06:09,151 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:09,177 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:11,725 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:11,742 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:14,300 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:14,310 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:16,826 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:16,833 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:19,390 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:19,396 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:21,867 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:24,340 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:06:24,345 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:26,814 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:06:26,820 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:26,825 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:27,133 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:06:27,428 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:27,710 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:27,994 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:28,279 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:28,571 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:28,836 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:06:29,138 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:06:29,141 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:29,423 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:06:29,709 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:29,999 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:30,291 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:30,578 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:06:30,860 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:06:31,147 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:31,453 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:31,455 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:31,750 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:32,029 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:32,312 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:32,580 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:06:32,865 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:06:33,157 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:06:33,443 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:33,739 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:06:33,742 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:34,042 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:34,335 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:34,641 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:34,937 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:35,230 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:35,524 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:35,806 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:36,102 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:06:36,105 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:38,558 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:06:41,032 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:06:41,037 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:43,500 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:06:44,677 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:06:44,682 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:47,123 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:06:47,131 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:49,599 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:06:49,603 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:52,071 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:06:52,074 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:54,540 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:06:54,544 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:54,548 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:56,986 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:06:56,989 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:59,437 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:07:00,634 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:07:00,638 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:03,052 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:07:05,449 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:05,453 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:07,855 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:07,861 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:10,320 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:07:10,324 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:12,749 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:12,752 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:12,754 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:15,223 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:07:15,226 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:17,704 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:07:17,708 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:20,220 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:07:21,757 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:07:21,761 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:24,225 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:07:24,230 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:26,764 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:07:26,767 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:29,241 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:07:29,244 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:30,474 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:07:30,480 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:30,483 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:33,001 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:07:33,005 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:35,456 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:35,460 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:38,186 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:07:40,663 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:40,666 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:42,709 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:07:42,712 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:44,580 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:07:44,583 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:47,072 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:49,581 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:07:49,589 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:49,933 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:07:50,248 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:07:50,561 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:07:50,884 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:07:51,179 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:07:51,485 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:07:51,795 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:07:52,102 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:07:52,104 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:54,684 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:07:57,259 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:57,264 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:59,928 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:07:59,932 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:02,472 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:02,475 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:05,056 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:08:07,599 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:10,279 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:08:12,857 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:12,861 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:12,865 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:13,204 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:08:13,558 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:08:13,910 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:08:14,223 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:14,542 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:14,880 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:15,206 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:15,530 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:08:15,532 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:17,500 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:08:17,503 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:20,057 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:20,060 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:22,680 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:08:22,683 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:25,252 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:27,747 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:29,217 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:08:29,220 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:31,775 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:31,779 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:34,372 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:08:34,375 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:34,378 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:37,006 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:08:37,011 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:39,612 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:08:39,615 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:42,226 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:44,796 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:44,800 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:47,024 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:08:47,028 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:49,609 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:49,612 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:52,133 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:52,137 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:54,771 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:08:54,774 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:54,778 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:08:55,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:08:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:08:55,414 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:08:55,667 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:08:55,667 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:08:55,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:08:55,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:08:55 BoogieIcfgContainer [2020-10-23 20:08:55,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:08:55,729 INFO L168 Benchmark]: Toolchain (without parser) took 202478.70 ms. Allocated memory was 156.2 MB in the beginning and 723.5 MB in the end (delta: 567.3 MB). Free memory was 132.5 MB in the beginning and 428.2 MB in the end (delta: -295.7 MB). Peak memory consumption was 272.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:55,730 INFO L168 Benchmark]: CDTParser took 1.50 ms. Allocated memory is still 156.2 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:08:55,733 INFO L168 Benchmark]: CACSL2BoogieTranslator took 901.51 ms. Allocated memory is still 156.2 MB. Free memory was 131.9 MB in the beginning and 110.8 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:55,737 INFO L168 Benchmark]: Boogie Preprocessor took 183.00 ms. Allocated memory is still 156.2 MB. Free memory was 110.8 MB in the beginning and 107.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:55,738 INFO L168 Benchmark]: RCFGBuilder took 2051.45 ms. Allocated memory was 156.2 MB in the beginning and 200.3 MB in the end (delta: 44.0 MB). Free memory was 106.8 MB in the beginning and 133.2 MB in the end (delta: -26.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:55,739 INFO L168 Benchmark]: TraceAbstraction took 199326.68 ms. Allocated memory was 200.3 MB in the beginning and 723.5 MB in the end (delta: 523.2 MB). Free memory was 132.7 MB in the beginning and 428.2 MB in the end (delta: -295.5 MB). Peak memory consumption was 227.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:55,743 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50 ms. Allocated memory is still 156.2 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 901.51 ms. Allocated memory is still 156.2 MB. Free memory was 131.9 MB in the beginning and 110.8 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 183.00 ms. Allocated memory is still 156.2 MB. Free memory was 110.8 MB in the beginning and 107.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2051.45 ms. Allocated memory was 156.2 MB in the beginning and 200.3 MB in the end (delta: 44.0 MB). Free memory was 106.8 MB in the beginning and 133.2 MB in the end (delta: -26.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 199326.68 ms. Allocated memory was 200.3 MB in the beginning and 723.5 MB in the end (delta: 523.2 MB). Free memory was 132.7 MB in the beginning and 428.2 MB in the end (delta: -295.5 MB). Peak memory consumption was 227.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L220] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int waterLevel = 1; [L425] int methaneLevelCritical = 0; [L625] int pumpRunning = 0; [L626] int systemActive = 1; [L845] int cleanupTimeShifts = 4; [L918] int retValue_acc ; [L919] int tmp ; [L923] FCALL select_helpers() [L924] FCALL select_features() [L925] CALL, EXPR valid_product() [L542] int retValue_acc ; [L545] retValue_acc = 1 [L546] return (retValue_acc); [L925] RET, EXPR valid_product() [L925] tmp = valid_product() [L927] COND TRUE \read(tmp) [L929] FCALL setup() [L930] CALL runTest() [L912] CALL test() [L555] int splverifierCounter ; [L556] int tmp ; [L557] int tmp___0 ; [L558] int tmp___1 ; [L559] int tmp___2 ; [L562] splverifierCounter = 0 [L564] COND TRUE 1 [L566] COND TRUE splverifierCounter < 4 [L572] tmp = __VERIFIER_nondet_int() [L574] COND TRUE \read(tmp) [L576] CALL waterRise() [L442] COND TRUE waterLevel < 2 [L443] waterLevel = waterLevel + 1 [L576] RET waterRise() [L582] tmp___0 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___0)) [L592] tmp___2 = __VERIFIER_nondet_int() [L594] COND FALSE !(\read(tmp___2)) [L598] tmp___1 = __VERIFIER_nondet_int() [L600] COND TRUE \read(tmp___1) [L602] CALL stopSystem() [L807] COND FALSE !(\read(pumpRunning)) [L814] systemActive = 0 [L602] RET stopSystem() [L609] CALL timeShift() [L633] COND FALSE !(\read(pumpRunning)) [L640] COND FALSE !(\read(systemActive)) [L648] CALL __utac_acc__Specification4_spec__1() [L820] int tmp ; [L821] int tmp___0 ; [L825] CALL, EXPR getWaterLevel() [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); [L825] RET, EXPR getWaterLevel() [L825] tmp = getWaterLevel() [L827] COND FALSE !(tmp == 0) [L648] RET __utac_acc__Specification4_spec__1() [L609] RET timeShift() [L564] COND TRUE 1 [L566] COND TRUE splverifierCounter < 4 [L572] tmp = __VERIFIER_nondet_int() [L574] COND TRUE \read(tmp) [L576] CALL waterRise() [L442] COND TRUE waterLevel < 2 [L443] waterLevel = waterLevel + 1 [L576] RET waterRise() [L582] tmp___0 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___0)) [L592] tmp___2 = __VERIFIER_nondet_int() [L594] COND TRUE \read(tmp___2) [L609] CALL timeShift() [L633] COND FALSE !(\read(pumpRunning)) [L640] COND FALSE !(\read(systemActive)) [L648] CALL __utac_acc__Specification4_spec__1() [L820] int tmp ; [L821] int tmp___0 ; [L825] CALL, EXPR getWaterLevel() [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); [L825] RET, EXPR getWaterLevel() [L825] tmp = getWaterLevel() [L827] COND TRUE tmp == 0 [L829] CALL, EXPR isPumpRunning() [L740] int retValue_acc ; [L743] retValue_acc = pumpRunning [L744] return (retValue_acc); [L829] RET, EXPR isPumpRunning() [L829] tmp___0 = isPumpRunning() [L831] COND TRUE \read(tmp___0) [L833] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product23.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 634 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 199.1s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 21.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1168 SDtfs, 2278 SDslu, 1956 SDs, 0 SdLazy, 4381 SolverSat, 849 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1059occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 325 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...